کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4965715 1448456 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear kinematics Reissner's beam with combined hardening/softening elastoplasticity
ترجمه فارسی عنوان
پرتو ریسنر سینماتیک غیر خطی با الاستوپلاستیک چسبندگی / نرم کننده ترکیب شده
کلمات کلیدی
پرتو رایسنر، پرتو دقیق هندسی پاسخ سختگیرنده / نرم کننده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
In this work, we present geometrically non-linear beam finite element with embedded discontinuity which can represent elastoplastic constitutive behavior with both hardening and softening response. The constitutive equations are presented in rate form by using the multiplicative decomposition of deformation gradient. Formulation of elastoplastic response is presented in terms of stress resultants including the interaction between axial force, shear force and bending moment appropriate for metallic materials. The softening response is used to model the failure in connections, introducing displacement field discontinuity or a rotational hinge. The hinges or displacement discontinuity are presented in the framework of incompatible modes that can handle three different failure modes dealing with bending, shearing or axial deformation. With several numerical simulations, the FEM implementation is proven very robust for solving the problems of practical interest, such as push-over analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 189, September 2017, Pages 12-20
نویسندگان
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