کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
278119 1430273 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-convex rate dependent strain gradient crystal plasticity and deformation patterning
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Non-convex rate dependent strain gradient crystal plasticity and deformation patterning
چکیده انگلیسی

A rate dependent strain gradient crystal plasticity framework is presented where the displacement and the plastic slip fields are considered as primary variables. These coupled fields are determined on a global level by solving simultaneously the linear momentum balance and the slip evolution equation, which is derived in a thermodynamically consistent manner. The formulation is based on the 1D theory presented in Yalcinkaya et al. (2011), where the patterning of plastic slip is obtained in a system with non-convex energetic hardening through a phenomenological double-well plastic potential. In the current multi-dimensional multi-slip analysis the non-convexity enters the framework through a latent hardening potential presented in Ortiz and Repettto (1999) where the microstructure evolution is obtained explicitly via a lamination procedure. The current study aims the implicit evolution of deformation patterns due to the incorporated physically based non-convex potential.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 49, Issue 18, 15 September 2012, Pages 2625–2636
نویسندگان
, , ,