پديد آورنده :
حاجي ابوطالبي، فرهاد
عنوان :
پيش بيني رشد آسيب در شكل دهي ورق هاي فلزي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
هفده،144ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمود فرزين، حسن خادمي زاد
استاد مشاور :
محمد مشايخي
توصيفگر ها :
كرنش هاي محدود , شكست نرم
تاريخ نمايه سازي :
13/9/89
استاد داور :
حسين حسيني تودشكي، محمود سليمي،محمد فروزان، محمود كدخدايي
كد ايرانداك :
ID323 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Prediction of damage evolution in sheet metal forming Farhad Haji Aboutalebi Fh aboutalebi@me iut ac ir August 11 2010 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran1st Supervisor Dr Mahmoud Farzin farzin@cc iut ac ir2nd Supervisor Dr Hassan Khademizadeh khademyza@cc iut ac irAdvisor Dr Mohammad Mashayekhi mashayekhi@cc iut ac irDepartment Graduate Program Coordinator Dr Mehdi Keshmiri AbstractIn this thesis ductile damage criteria available in the finite element commercial codeABAQUS were evaluated first For this propose a few two dimensional benchmarkproblems and three dimentional metal forming processes were considered After thesimulations results of damage evolution crack initiation and fracture modes werepredicted By comparing numerical simulations and reported experimental tests appropriatemodels for predicting the damage evolution in sheet metal forming processes weredetermined Then Lemaitre s ductile damage model was selected due to its simplicity andits damage parameters for DIN 1623 St14 steel were determined by using standard tensileand Vickers micro hardness tests A fully coupled elastic plastic damage model based onLemaitre s ductile damage model was developed and implemented into ABAQUS explicitcode Due to using the plane stress and finite strain theories model can quickly andaccurately predict deformation and damage of parts Also damage initiation propagation and fracture in some sheet metal forming operations were predicted and validated withexperimental tests Comparison of the results showed that finite strain combined withcontinuum damage mechanics can be used as a quick and accurate tool to predict ductiledamage fracture and forming limits in sheet metal forming processes Keywordsductile damage plane stress finite strain fracture sheet metal forming Associate Professor Mechanical Engineering Department Isfahan University of Technology Assistant Professor Mechanical Engineering Department Isfahan University of Technology Assistant Professor Mechanical Engineering Department Isfahan University of Technology
استاد راهنما :
محمود فرزين، حسن خادمي زاد
استاد مشاور :
محمد مشايخي
استاد داور :
حسين حسيني تودشكي، محمود سليمي،محمد فروزان، محمود كدخدايي
