{"id":495,"date":"2020-05-26T11:26:12","date_gmt":"2020-05-26T09:26:12","guid":{"rendered":"https:\/\/msz-bau.zaft-dresden.de\/?p=495"},"modified":"2021-06-15T16:22:40","modified_gmt":"2021-06-15T14:22:40","slug":"wissen-schafft-bau-200309","status":"publish","type":"post","link":"https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/","title":{"rendered":"Wissen-schaf(f)t Bau: Wie viele LKWs k\u00f6nnen auf dieser Stra\u00dfe fahren? \u2500 Das Festigkeitsverhalten von Stoffen"},"content":{"rendered":"<p>Die Sitzung am 09.03.2020 mit Prof. Dr.-Ing. Stephan Pfefferkorn kn\u00fcpfte indirekt an die letzte Sitzung im Februar an. W\u00e4hrend sich die Sch\u00fcler mit Prof. Dr.-Ing. Thomas Matschei den Baustoff Beton angesehen haben, lenkte Prof. Pfefferkorn die Aufmerksamkeit der Sch\u00fcler auf das Festigkeitsverhalten verschiedener Stoffe.<!--more--><\/p>\n<p>Die <strong>Festigkeit<\/strong> ist die maximal aufnehmbare mechanische Beanspruchung bzw. der maximale Lastwert. Wird dieser \u00dcberschritten, entstehen Materilatrennungen, z.B. Risse oder Br\u00fcche. Anhand von Vergleichen und Beispielen aus der Praxis demonstriert Prof. Pfefferkorn den Sch\u00fclern den Unterschied zwischen Zug-, Druck-, Biege-, Tordier-\/Verdreh- und Scherfestigkeit.<\/p>\n<p>Jeder Stoff weist ein f\u00fcr ihn typisches <strong>Festigkeitsverhalten<\/strong> auf, also das Verformungs- bzw. Bruchverhalten vom 0-Punkt bis zum Versagen des Pr\u00fcfk\u00f6rpers. Es wird unterschieden in<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>elastisch &#8211; weich (eine proportionale Verformung)<\/li>\n<li>elastisch &#8211; steif (Es kommt zu einem spr\u00f6den Bruch wie beim Brechen von Glas.)<\/li>\n<li>plastisch &#8211; steif (Dem Z\u00e4hbruch geht eine irreversible Verformung voraus.)<\/li>\n<li>Gemischtes Verhalten I (Die elastisch-plastische Verformung weist ein ausgepr\u00e4gtes Nachbruchverhalten auf, d.h. wenn die ersten Risse auftreten, wird f\u00fcr weitere Verformungen deutlich weniger Kraft ben\u00f6tigt.)<\/li>\n<li>Gemischtes Verhalten II (Der Stoff verh\u00e4lt sich elastisch bis zur Verformungsgrenze, dann findet eine plastische Verformung statt. Dazwischen gibt es eine \u00dcbergangs-\/Flie\u00dfzone. Dieses Festigkeitsverhalten ist ganz typisch f\u00fcr Stahl.)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Den Unterschied zwischen plastischer und elastischer Verformung ermittelten die Sch\u00fcler im Experiment jeder selbst. Dazu bekam jeder Sch\u00fcler drei Stoffproben:<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>Knabberstangen<\/li>\n<li>Gummischlangen<\/li>\n<li>Marschmellows<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<figure id=\"attachment_510\" aria-describedby=\"caption-attachment-510\" style=\"width: 1128px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/msz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV.png\"><img decoding=\"async\" class=\"size-full wp-image-510 lazyload\" data-src=\"https:\/\/msz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV.png\" alt=\"Demonstration plastischer Verformung am Beispiel einer Knabberstange.\" width=\"1128\" height=\"752\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV.png 1128w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV-300x200.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV-768x512.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/200309_wsb_plV-1024x683.png 1024w\" data-sizes=\"(max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 1128px; --smush-placeholder-aspect-ratio: 1128\/752;\" \/><\/a><figcaption id=\"caption-attachment-510\" class=\"wp-caption-text\">Am Beispiel der Knabberstange wird die plastische Verformung demonstriert.<\/figcaption><\/figure>\n<div id='gallery-1' class='gallery galleryid-495 gallery-columns-3 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/wsb_200309_04\/'><img decoding=\"async\" width=\"525\" height=\"350\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-1024x683.jpg\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-1-508\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-1024x683.jpg 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-300x200.jpg 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-768x512.jpg 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-e1623766948173.jpg 450w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/350;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-508'>\n\t\t\t\tAnhand der Gummischlange wird das elastisch-weiche Festigkeitsverhalten gepr\u00fcft.\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/wsb_200309_04b\/'><img decoding=\"async\" width=\"525\" height=\"350\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04b-1024x683.jpg\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-1-496\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04b-1024x683.jpg 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04b-300x200.jpg 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04b-768x512.jpg 768w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/350;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-496'>\n\t\t\t\t\u00dcberschreitet die Beanspruchung den maximalen Lastwert, sind die Sch\u00e4den am Material irreversibel.\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/wsb_200309_05\/'><img decoding=\"async\" width=\"525\" height=\"350\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_05-1024x683.jpg\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-1-497\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_05-1024x683.jpg 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_05-300x200.jpg 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_05-768x512.jpg 768w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/350;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-497'>\n\t\t\t\tBeim Verformen eines Materials mit elastisch-weichem Festigkeitsverhalten, werden Energien transformiert. Hier am Beispiel einer Zwille, eines St\u00fcckes Kreide und einer Stahlbetonwand.\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n<p>Im Labor wurden die <a href=\"https:\/\/msz-bau.zaft-dresden.de\/index.php\/2020\/02\/04\/wissen-schafft-bau-bauen-mit-beton\/\">Testw\u00fcrfel der letzten Sitzung<\/a> auf ihre Festigkeit hin gepr\u00fcft.<\/p>\n<div id='gallery-2' class='gallery galleryid-495 gallery-columns-4 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1.png'><img decoding=\"async\" width=\"525\" height=\"344\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1-1024x671.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-533\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1-1024x671.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1-300x197.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1-768x503.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10a-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/344;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-533'>\n\t\t\t\tMischung 1: guter Beton\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1.png'><img decoding=\"async\" width=\"525\" height=\"345\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1-1024x673.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-534\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1-1024x673.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1-300x197.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1-768x504.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10b-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/345;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-534'>\n\t\t\t\tMischung 2: guter Beton + 0,5 l Wasser\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1.png'><img decoding=\"async\" width=\"525\" height=\"339\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1-1024x661.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-531\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1-1024x661.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1-300x194.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1-768x496.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10c-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/339;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-531'>\n\t\t\t\tMischung 3: guter Beton + 20 ml Flie\u00dfmittel\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1.png'><img decoding=\"async\" width=\"525\" height=\"340\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1-1024x664.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-536\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1-1024x664.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1-300x194.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1-768x498.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10d-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/340;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-536'>\n\t\t\t\tMischung 4: Mischung 3 + Porenmittel\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1.png'><img decoding=\"async\" width=\"525\" height=\"348\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1-1024x679.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-537\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1-1024x679.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1-300x199.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1-768x509.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10e-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/348;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-537'>\n\t\t\t\tGips\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f.png'><img decoding=\"async\" width=\"525\" height=\"350\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f-1024x683.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-538\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f-1024x683.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f-300x200.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f-768x512.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10f.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/350;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-538'>\n\t\t\t\tnasser Gips\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1.png'><img decoding=\"async\" width=\"525\" height=\"380\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1-1024x741.png\" class=\"attachment-large size-large no-lazy lazyload\" alt=\"\" aria-describedby=\"gallery-2-539\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1-1024x741.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1-300x217.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1-768x555.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10g-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/380;\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-2-539'>\n\t\t\t\tKiefernholz\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\n\n<table id=\"tablepress-5\" class=\"tablepress tablepress-id-5\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Bezeichnung des Baustoffes<\/th><th class=\"column-2\">Mischung1<\/th><th class=\"column-3\">Mischung2<\/th><th class=\"column-4\">Mischung3<\/th><th class=\"column-5\">Mischung4<\/th><th class=\"column-6\">Gips <br \/>\n(trocken)<\/th><th class=\"column-7\">Gips <br \/>\n(nass)<\/th><th class=\"column-8\">Holz<\/th><th class=\"column-9\">Glas<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">L\u00e4nge <em>l<\/em> [mm]<\/td><td class=\"column-2\">99,8<\/td><td class=\"column-3\">99,7<\/td><td class=\"column-4\">99,8<\/td><td class=\"column-5\">100<\/td><td class=\"column-6\">99,8<\/td><td class=\"column-7\">100,1<\/td><td class=\"column-8\">100<\/td><td class=\"column-9\">80,2<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Breite <em>b<\/em> [mm]<\/td><td class=\"column-2\">99,1<\/td><td class=\"column-3\">101<\/td><td class=\"column-4\">99,6<\/td><td class=\"column-5\">101<\/td><td class=\"column-6\">101,3<\/td><td class=\"column-7\">100,9<\/td><td class=\"column-8\">100,1<\/td><td class=\"column-9\">80,3<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">H\u00f6he <em>h<\/em> [mm]<\/td><td class=\"column-2\">99,8<\/td><td class=\"column-3\">100,2<\/td><td class=\"column-4\">100,2<\/td><td class=\"column-5\">99,8<\/td><td class=\"column-6\">100,3<\/td><td class=\"column-7\">100<\/td><td class=\"column-8\">99,4<\/td><td class=\"column-9\">80,3<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Druckfl\u00e4che <em>A=l\u00b7b<\/em> [mm\u00b2]<\/td><td class=\"column-2\">9'890,18<\/td><td class=\"column-3\">10'069,7<\/td><td class=\"column-4\">9'940,08<\/td><td class=\"column-5\">10'100,0<\/td><td class=\"column-6\">10'109,74<\/td><td class=\"column-7\">10'100,0<\/td><td class=\"column-8\">10'010,0<\/td><td class=\"column-9\">6'440,06<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Volumen <em>V=l\u00b7b\u00b7h=A\u00b7h<\/em> [mm\u00b3]<\/td><td class=\"column-2\">987'039,96<\/td><td class=\"column-3\">1'008'983,9<\/td><td class=\"column-4\">995'996,01<\/td><td class=\"column-5\">1'007'980,0<\/td><td class=\"column-6\">1'014'006,9<\/td><td class=\"column-7\">1'010'000,0<\/td><td class=\"column-8\">1'014'006,9<\/td><td class=\"column-9\">517'136,81<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Masse <em>m<\/em> [g]<\/td><td class=\"column-2\">2250<\/td><td class=\"column-3\">2250<\/td><td class=\"column-4\">2260<\/td><td class=\"column-5\">2210<\/td><td class=\"column-6\">1370<\/td><td class=\"column-7\">1590<\/td><td class=\"column-8\">380<\/td><td class=\"column-9\">1330<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Rohdichte <em>\u03c1R<\/em> [kg\/m\u00b3]<\/td><td class=\"column-2\">2279,55<\/td><td class=\"column-3\">2232,14<\/td><td class=\"column-4\">2269,08<\/td><td class=\"column-5\">2192,46<\/td><td class=\"column-6\">1351,08<\/td><td class=\"column-7\">1574,26<\/td><td class=\"column-8\">374,75<\/td><td class=\"column-9\">2572,53<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Bruchkraft <em>F<\/em> [kN]<\/td><td class=\"column-2\">518,3<\/td><td class=\"column-3\">426,9<\/td><td class=\"column-4\">534,6<\/td><td class=\"column-5\">458,3<\/td><td class=\"column-6\">219,5<\/td><td class=\"column-7\">95,9<\/td><td class=\"column-8\">407<\/td><td class=\"column-9\">1600,4<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">Druckfestigkeit <em>Rc=F\/A<\/em> [N\/mm\u00b2]<\/td><td class=\"column-2\">52,41<\/td><td class=\"column-3\">42,39<\/td><td class=\"column-4\">53,78<\/td><td class=\"column-5\">45,38<\/td><td class=\"column-6\">21,71<\/td><td class=\"column-7\">9,59<\/td><td class=\"column-8\">40,75<\/td><td class=\"column-9\">248,44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-5 from cache -->\n<p>Der Glasw\u00fcrfel brachte die Pr\u00fcfmaschine an ihre Grenzen. Da der Versuch bereits im Vorhinein mehrfach durchgef\u00fchrt wurde, gab ein Splitter zum Ende hin nach.<\/p>\n<div id='gallery-3' class='gallery galleryid-495 gallery-columns-2 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1.png'><img decoding=\"async\" width=\"300\" height=\"197\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1-300x197.png\" class=\"attachment-medium size-medium no-lazy lazyload\" alt=\"\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1-300x197.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1-768x504.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1-1024x673.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_10h-1.png 1984w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/197;\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_12.jpg'><img decoding=\"async\" width=\"300\" height=\"200\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_12-300x200.jpg\" class=\"attachment-medium size-medium no-lazy lazyload\" alt=\"\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_12-300x200.jpg 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_12-768x512.jpg 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_12-1024x683.jpg 1024w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/200;\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>Als Gegenbewegung zu den Druckversuchen werden noch Zugversuche durchgef\u00fchrt.<\/p>\n<figure id=\"attachment_528\" aria-describedby=\"caption-attachment-528\" style=\"width: 525px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/msz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14.png\"><img decoding=\"async\" class=\"wp-image-528 size-large lazyload\" data-src=\"https:\/\/msz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14-1024x683.png\" alt=\"\" width=\"525\" height=\"350\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14-1024x683.png 1024w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14-300x200.png 300w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14-768x512.png 768w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14.png 1984w\" data-sizes=\"(max-width: 525px) 100vw, 525px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 525px; --smush-placeholder-aspect-ratio: 525\/350;\" \/><\/a><figcaption id=\"caption-attachment-528\" class=\"wp-caption-text\">Gepr\u00fcft wurde das unterschiedliche Verhalten zweier verschidener Kunststoffe.<\/figcaption><\/figure>\n<div id='gallery-4' class='gallery galleryid-495 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14a.jpg'><img decoding=\"async\" width=\"150\" height=\"150\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14a-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail no-lazy lazyload\" alt=\"\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14a-150x150.jpg 150w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14a-100x100.jpg 100w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14b.jpg'><img decoding=\"async\" width=\"150\" height=\"150\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14b-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail no-lazy lazyload\" alt=\"\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14b-150x150.jpg 150w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14b-100x100.jpg 100w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14c.jpg'><img decoding=\"async\" width=\"150\" height=\"150\" data-src=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14c-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail no-lazy lazyload\" alt=\"\" data-srcset=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14c-150x150.jpg 150w, https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/05\/wsb_200309_14c-100x100.jpg 100w\" data-sizes=\"100vw\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>W\u00e4hrend das Probest\u00fcck A einfach splittert, wird Probest\u00fcck B gedehnt und erreicht das f\u00fcnffache seiner L\u00e4nge, bevor das Material versagt.<br \/>\nDieser Versuch wurde auch an einem Stahlrundprofil wiederholt.<\/p>\n<p><iframe data-src=\"https:\/\/www.youtube.com\/embed\/9wm7uzO38W0\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Die Sitzung am 09.03.2020 mit Prof. Dr.-Ing. Stephan Pfefferkorn kn\u00fcpfte indirekt an die letzte Sitzung im Februar an. W\u00e4hrend sich die Sch\u00fcler mit Prof. Dr.-Ing. Thomas Matschei den Baustoff Beton angesehen haben, lenkte Prof. Pfefferkorn die Aufmerksamkeit der Sch\u00fcler auf das Festigkeitsverhalten verschiedener Stoffe.<\/p>\n","protected":false},"author":1,"featured_media":508,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Wissen-schaf(f)t Bau: Wie viele LKWs k\u00f6nnen auf dieser Stra\u00dfe fahren? \u2500 Das Festigkeitsverhalten von Stoffen - MZ Bau<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wissen-schaf(f)t Bau: Wie viele LKWs k\u00f6nnen auf dieser Stra\u00dfe fahren? \u2500 Das Festigkeitsverhalten von Stoffen - MZ Bau\" \/>\n<meta property=\"og:description\" content=\"Die Sitzung am 09.03.2020 mit Prof. Dr.-Ing. Stephan Pfefferkorn kn\u00fcpfte indirekt an die letzte Sitzung im Februar an. W\u00e4hrend sich die Sch\u00fcler mit Prof. Dr.-Ing. Thomas Matschei den Baustoff Beton angesehen haben, lenkte Prof. Pfefferkorn die Aufmerksamkeit der Sch\u00fcler auf das Festigkeitsverhalten verschiedener Stoffe.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/\" \/>\n<meta property=\"og:site_name\" content=\"MZ Bau\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-26T09:26:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-06-15T14:22:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mz-bau.zaft-dresden.de\/wp-content\/uploads\/2020\/04\/wsb_200309_04-e1623766948173.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"450\" \/>\n\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Anna K.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Anna K.\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/mz-bau.zaft-dresden.de\/index.php\/2020\/05\/26\/wissen-schafft-bau-200309\/\"},\"author\":{\"name\":\"Anna K.\",\"@id\":\"https:\/\/mz-bau.zaft-dresden.de\/#\/schema\/person\/5f41eb0ab7da7b6eca71848df1e9b433\"},\"headline\":\"Wissen-schaf(f)t Bau: Wie viele LKWs k\u00f6nnen auf dieser Stra\u00dfe fahren? 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