Zheng Yingren1,Deng Chujian1,2,Wang Jinglin1(1.Logistical Engineering University,Chongqing 400041,China,2. No.6 Air Defense Engineering Department of PLA Air Force,Hengyang,Hunan 421001,China)
Abstract:
At present,associated flow rule of traditional plastic theory is adopted in the slip line field theory and upper bound method of geotechnical materials. So the stress characteristic line conforms to the velocity line. It is proved that geotechnical materials do not abide by the associated flow rule. It is impossible for the stress characteristic line to conform to the velocity line. Generalized plastic mechanics theoretically proved that plastic potential surface intersects the Mohr-Coulomb yield surface wi...