پديد آورنده :
صفري، احمدرضا
عنوان :
شبيه سازي تشكيل ترك انجمادي درفرآيند جوشكاري قوس تنگستني گازي فولاد زنگ نزن AISI310s
گرايش تحصيلي :
طراحي كاربردي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
پانزده، 101ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
محمدرضا فروزان
استاد مشاور :
مرتضي شمعانيان
توصيفگر ها :
جوش , اجزاء محدود , آنيل , آزاد سازي كرنش ها , ترموويسكوپلاستيك , انقباض انجمادي
تاريخ نمايه سازي :
26/6/92
استاد داور :
اميرحسين كوكبي، ايرج ستاري فر، محمد مشايخي، احسان فروزمهر
تاريخ ورود اطلاعات :
1395/12/07
كد ايرانداك :
ID535 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
1 Simulation of hot cracking in TIG welding of austenitic stainless steel AISI310s Ahmad Reza Safari ar safari@me iut ac ir March 7 2013 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran M R Forouzan Supervisor forouzan@cc iut ac ir M Shamanian Advisor shamanian@cc iut ac ir M R Salimi Department Graduate Program Coordinator Abstract Hot cracking takes places during the last stage of solidification where mechanical deformation develops in the mushy zone while the material has low ductility In this study hot cracking initiation and propagation of austenitic stainless steel 310s was studied A viscoplastic constitutive model was proposed and implemented in finite element simulation Solidification shrinkage viscosity annealing at high temperature and melting effect of fusion zone and a criterion for hot cracking initiation and propagation are the main features of the solution Numerical results were compared with some experiments accomplished in this study in order to verify the proposed method The results showed that annealing and melting had the most effect in predicting crack length Omission of these parameters leaded to underestimated results Elimination of viscosity effect leaded to overestimation of the crack length while elimination of solidification shrinkage leaded to underestimated crack length Keywords Hot cracking Austenitic stainless steel Viscosity Constitutive model Annealing Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Department of Materials Engineering Isfahan University of Technology Isfahan 84156 83111 IranPDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
محمدرضا فروزان
استاد مشاور :
مرتضي شمعانيان
استاد داور :
اميرحسين كوكبي، ايرج ستاري فر، محمد مشايخي، احسان فروزمهر
