Implementing the New First and Second Differentiation of a General Yield Surface in Explicit and Implicit Rate-Independent Plasticity

Journal of Solid Mechanics

مقاله 7، دوره 6، شماره 3، آذر 2014، صفحه 310-321   

نوع مقاله: Research Paper

نویسندگان

F Moayyedian؛ M Kadkhodayan^*

Mechanical Engineering Department, Ferdowsi University of Mashhad

چکیده

In the current research with novel first and second differentiations of a yield function, Euler forward along with Euler backward with its consistent elastic-plastic modulus are newly implemented in finite element program in rate-independent plasticity. An elastic-plastic internally pressurized thick walled cylinder is analyzed with four famous criteria including both pressure dependent and independent. The obtained results are in good agreement with experimental results. The consistent/continuum elastic-plastic moduli for Euler backward method are also investigated.

کلیدواژه‌ها

Rate-independent Euler backward/forward methods؛ Consistent elastic-plastic modulus؛ Internally pressurized thick walled cylinder

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