کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
807233 905484 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elastoplasticity of crack loaded by two pairs of isolated shear forces in finite width plate
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Elastoplasticity of crack loaded by two pairs of isolated shear forces in finite width plate
چکیده انگلیسی

The failure behavior of an elastic-perfectly plastic body with a crack loaded by two pairs of concentrated shear forces is discussed. The analytical solutions of an eccentric crack in a finite plate loaded by two pairs of point shear forces are obtained. It includes the unit normal vector of the elastic–plastic boundary near the crack line, the elastic–plastic stress fields near crack line and the law of the plastic zone along the crack line with external loads. The solutions of this paper are sufficiently precise near the crack line in elastic-perfectly plastic materials. Subsequently, the present results are compared with solutions based on the minimum strain energy density theory and elastic–plastic solutions under small scale yielding condition. On the basis of the minimum strain energy density (SED) theory, the minimum values of SED in the vicinity of the crack tip are determined, the initial growth orientation of crack are determined. It is found that the normalized load under large scale yielding condition is higher than those under small scale yielding condition when the length of the plastic zone is the same.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical and Applied Fracture Mechanics - Volume 54, Issue 3, December 2010, Pages 141–148
نویسندگان
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