VISCOPLASTICITY

作品数：30被引量：64H指数：4
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Limit analysis of viscoplastic thick-walled cylinder and spherical shell under internal pressure using a strain gradient plasticity theory被引量：2
《Applied Mathematics and Mechanics(English Edition)》2008年第12期1553-1559,共7页李茂林 扶名福 
supported by the Ph. D. Programs Foundation of Ministry of Education of China(No. 20050403002)
Plastic limit load of viscoplastic thick-walled cylinder and spherical shell subjected to internal pressure is investigated analytically using a strain gradient plasticity theory. As a result, the current solutions ca...
关键词：thick-walled cylinder and spherical shell strain gradient NONLOCAL VISCOPLASTICITY 
Coupled viscoplasticity damage constitutive model for concrete materials
《Applied Mathematics and Mechanics(English Edition)》2007年第9期1145-1152,共8页刘长春 吕和祥 关萍 
the National Natural Science Foundation of China(No.90410012)
A coupled viscoplasticity damage constitutive model for concrete materials is developed within the framework of irreversible thermodynamics. Simultaneously the Hehnholtz free energy function and a non-associated flow ...
关键词：CONCRETE VISCOPLASTICITY DAMAGE irreversible thermodynamics 
SYMMETRIC FORMULATION OF TANGENTIAL STIFFNESSES FOR NON-ASSOCIATED VISCOPLASTICITY WITH AN IMPLICIT TIME INTEGRATION SCHEME
《Applied Mathematics and Mechanics(English Edition)》1993年第3期269-276,共8页熊文林 
A numerical scheme is presented which enables the use of symmetric equation solvers in tangential stiffness programs for non-associated viscoplastic materials.
关键词：VISCOPLASTICITY non-associated tangential stiffnesses SYMMETRIC 
PARAMETRIC QUADRATIC PROGRAMMING METHOD FOR VISCOPLASTICITY
《Applied Mathematics and Mechanics(English Edition)》1991年第6期577-582,共6页曾攀 钱令希 
The Project Supported by the National Natural Science Foundation of China
Perzyna model in viscoplasticity has been studied by the parametric variational principle, which could be transformed into solving the parametric quadratic programming problem. The FEM form of this problem and its imp...
关键词：Mathematical Programming  Nonlinear Mathematical Techniques Variational Techniques 
THE PARAMETRIC VARIATIONAL PRINCIPLE FOR PERZYNA MODEL IN VISCOPLASTICITY
《Applied Mathematics and Mechanics(English Edition)》1991年第5期433-437,共5页曾攀 钟成勰 
This paper presents the parametric variational principle for Perzyna model which is one of the main constitutive relations of viscoplasticity.The principle,by which the potential energy function is minimized under a c...
关键词：VISCOPLASTICITY parametric variational principle creep 
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