کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
277748 1430242 2014 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel Volume-Compensated Particle method for 2D elasticity and plasticity analysis
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A novel Volume-Compensated Particle method for 2D elasticity and plasticity analysis
چکیده انگلیسی

A novel Volume-Compensated Particle model (VCPM) is proposed for the modeling of deformation and fracture in solids. In this proposed method, two potentials are introduced to model the interactions between material particles, i.e., a local pair-wise potential and a non-local multi-body potential. The local pair-wise potential is utilized to account for the constitutive relationship within the connecting bonds between particles while the non-local multi-body potential is employed for considering the volumetric effects under general mechanical loadings. The potential coefficients are determined by matching the potential energy stored in a discrete unit cell to the strain energy at the classical continuum level. A volume conservation scheme is proposed to model the plastic deformation. The validity of the proposed model is tested against the classical elasticity and elasto-plasticity benchmarks before its application to fracture problems. Several conclusions are drawn based on the proposed study.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 51, Issue 9, 1 May 2014, Pages 1819–1833
نویسندگان
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