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</o:shapelayout></xml><![endif]--></head><body lang=SL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Vabimo vas na 6. predavanje iz sklopa "Kolokviji na IJS" v letu 2017/18, ki bo <strong><span style='color:red'>v sredo, 07. februarja 2018, ob 13. uri </span></strong><span style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span> na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu <a href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>, posnetke preteklih predavanj<span style='color:blue'> </span>pa na <a href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>. <o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></p><p class=MsoNormal><b><span lang=EN-US style='mso-fareast-language:ZH-CN'>prof. dr. Stéphane P. A. Bordas<o:p></o:p></span></b></p><p class=MsoNormal><i><span style='mso-fareast-language:ZH-CN'>Univerza v Luksemburgu, Luksemburg, Luksemburg<o:p></o:p></span></i></p><p class=MsoNormal><i><span style='mso-fareast-language:ZH-CN'>Univerza Cardiff, Cardiff, Velika Britanija<o:p></o:p></span></i></p><p class=MsoNormal><b><span style='font-size:14.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span lang=EN-US style='font-size:16.0pt'>Napovedovanje porušitve letalskih struktur – simulacija razpok v različnih merilih in časih</span></b><span style='font-size:11.0pt;font-family:"Arial",sans-serif'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:justify'>S potniškim letalom bi lahko leteli vsak dan, pa v dvajset tisoč letih ne bi doživeli hude nesreče. Tako visoka raven varnosti je posledica desetletij inženirskega dela in raziskav materialov. V tem času so se inženirji trudili izdelati lažja in trdnejša letala z vse večjim dosegom, pri čemer so kovine postopoma nadomeščali z lažjimi naprednimi kompozitnimi materiali, ki danes predstavljajo že več kot polovico strukturne mase najnovejših letal. Pričujoči napredek temelji predvsem na modeliranju in simulacijah materialov in struktur, ki so revolucionarno izboljšale konstruiranje letal, saj inženirjem omogočajo virtualno primerjavo različnih strategij načrtovanja in razvoja. V predavanju se bomo osredotočili na izzive, s katerimi so se, se še in se bodo soočala orodja za modeliranje in simulacijo v težnji, da bi čim bolje napovedovala vzdržljivost lažjih, trdnejših in zanesljivejših letal z vse večjim dosegom. Predstavili bomo področja uporabe, kjer stične površine materialov ključno vplivajo na mehansko obnašanje sistemov, in jih podkrepili s paleto primerov – od kompozitnih letalskih struktur do kirurških simulatorjev. Primerjali bomo različne možnosti za diskretizacijo sistemov, ki so modelirani z gibljivimi in prostimi površinami. Na koncu bomo opredelili digitalne dvojčke in raziskali njihovo uporabnost v inženirskih in biomedicinskih aplikacijah.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:justify'>Predavanje bo v angleščini.<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><strong><span style='font-family:"Calibri",sans-serif;color:red'>Lepo vabljeni!</span></strong><strong><span style='font-weight:normal'><o:p></o:p></span></strong></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><span style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:SL'><br clear=all style='page-break-before:always'></span><p class=MsoNormal><span style='color:black'>We invite you to the 6th Institute colloquium in the academic year 2017/18. The colloquium will be held </span><b><span style='color:red'>on Wednesday February 07, 2018 at 1 PM</span></b><span style='color:red'> in <b>the main Institute lecture hall</b></span><span style='color:black'>, Jamova 39, Ljubljana. To read the abstract click </span><span style='color:#1F497D'><a href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>. </span><span style='color:black'>Past colloquia are posted on</span><span style='color:#1F497D'> <a href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'>********************************************<b><o:p></o:p></b></p><p class=MsoNormal><b>prof. dr. Stéphane P. A. Bordas<o:p></o:p></b></p><p class=MsoNormal><i><span lang=EN-US>University of Luxembourg, Engineering Luxembourg, Luxembourg<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US>Cardiff University, Cardiff, United Kingdom<o:p></o:p></span></i></p><p class=MsoNormal><b><span style='font-size:16.0pt;mso-fareast-language:ZH-CN'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span lang=EN-US style='font-size:16.0pt'>Predicting Failure in Aircraft Structures – Simulating Fracture across Scales and Times<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>You could fly every day of your life in a commercial aircraft for twenty thousand years without suffering a fatal accident. This extraordinary level of safety is the product of decades of engineering and materials science research. Simultaneously, engineers have strived to produce lighter and stronger aircraft, with increased range and metals have thus been gradually replaced by lighter advanced composite materials, which take up more than half of the structural weight of today's most advanced aircraft. Such progress has been largely enabled by modeling and simulation of materials and structures, which have revolutionized design by enabling engineers to investigate virtually various design strategies. This presentation will focus on the challenges which have been posed, are posed, and will be posed to such modeling and simulation tools in the strive to predict the durability of lighter, stronger, longer-ranging and more reliable aircraft. We will also discuss several applications where interfaces are key to the behavior of mechanical systems, ranging from composite aircraft structures to surgical simulators, and we will present and compare different alternatives to discretize problems involving moving and free interfaces. Finally, we will define digital twins and investigate their potential in engineering and biomedical applications. <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Cordially invited!<o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></p></div></body></html>