کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
278435 1430275 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shakedown analysis of engineering structures with limited kinematical hardening
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Shakedown analysis of engineering structures with limited kinematical hardening
چکیده انگلیسی

We present a numerical method for the computation of shakedown loads of engineering structures with limited kinematical hardening under thermo-mechanical loading. The method is based on Melan’s statical shakedown theorem, which results in a nonlinear convex optimization problem. This is solved by an interior-point algorithm recently developed by the authors, specially designed for lower bound shakedown analysis of large-scale problems. Limited kinematical hardening is taken into account by use of a two-surface model, such that both alternating plasticity and incremental collapse can be captured. For the yield surface as well as for the bounding surface the von Mises criterion is used. The proposed method is validated by two examples, where numerical results are compared to those of literature where available.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 49, Issues 15–16, August 2012, Pages 2177–2186
نویسندگان
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