Unified Plastic Limit Analysis of Simply Supported Circular Plates With Strength Differential Effect in Tension and Compression
Wang Yanbin, Yu Maohong
(Xi'an Jiaotong University£¬Xi'an£¬710049)

Abstract: A unified solution of plastic limit loads of simply supported circular plates under edge uniformly distributed load is presented. The in fluences of the coefficient b  and tension-compression ratio ¦Á on the plastic limit loads are investigated. The obtained results are suitable for a wide range of materials with SD effect and the intermediate stress effect. A series of new results are also obtained in this paper that is greater than the results of Tresca and Mohr-Coulomb theory, so the potential strength of materials can be fully applied in the relevant engineering structures.
Keywords: unified strength theory, plastic limit load, simply supported circular plate, border uniformly distributed load.