Limit Analyisis of Frame Structure Based on the Elastic Modulus Reduction Method

Abstract:

An efficient linear elastic iterative finite element method, namely, the elastic modulus reduction method is introduced to calculate limit load of frame structure. The elastic modulus reduction method defines the element bearing ratio on the basis of the generalized yield criterion and the strain energy equilibrium principle. Because the bending moment is the main factor inducing the frame structure damage, the element bearing ratio only considering the bending moment yield is proposed. Numerical examples demonstrate the applicability and precision of the elastic modulus reduction method for limit analysis of frame structures.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 950-953
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.950
• Online since: July 2014
• Authors: Qiu Hua Duan, Yan Qing Guo, Dan Dan Zeng, Yue Jing Luo
• Keywords: Elastic Modulus Reduction Method, Frame Structure, Limit Analysis

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