کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7169775 | 1463093 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extended investigation of the test specimen thickness (TST) effect on the fracture toughness (Jc) of a material in the ductile-to-brittle transition temperature region as a difference in the crack tip constraint â What is the loss of constraint in the T
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
To answer this question, several well-known constraint parameters were investigated to determine their correlations with the TST effect and the bounded nature of Jc for increasing TST. Based on the elastic-plastic finite element analysis results, it was demonstrated that the well-known stress triaxiality factor Π= (hydrostatic stress)/(von Mises stress), measured at 4δtc (crack-tip opening displacement at fracture load Pc), exhibited a good correlation with the decreasing and subsequently bounded nature of Jc for increasing TST. Î started to decrease at some load level before fracture for relatively thin specimens, and this was the loss of constraint in the TST effects on Jc.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 135, February 2015, Pages 286-294
Journal: Engineering Fracture Mechanics - Volume 135, February 2015, Pages 286-294
نویسندگان
Toshiyuki Meshii, Kai Lu, Yuki Fujiwara,