کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
500619 863097 2006 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reliable and efficient equilibrated a posteriori finite element error control in elastoplasticity and elastoviscoplasticity with hardening
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Reliable and efficient equilibrated a posteriori finite element error control in elastoplasticity and elastoviscoplasticity with hardening
چکیده انگلیسی

This paper establishes the reliability and efficiency of equilibrated a posteriori estimates for L2 stress error control of conforming displacement finite element approximations of incremental plasticity and viscoplasticity with hardening. Explicit expressions for upper bounds of the reliability constant that enters the guaranteed upper error bound illustrate its crucial dependence on the hardening material constants. Numerical experiments show that adaptive finite element solutions with marking strategy based on the max-refinement rule and local equilibrated error estimators lead to optimal empirical convergence rates.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 195, Issues 19–22, 1 April 2006, Pages 2574–2598
نویسندگان
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