This paper introduces an elasto-plastic joint element characterised by strain hardening and softening in the analysis of dynamic soil-structure interaction, the phenomena of sep- aration and sliding on the contact sur...This paper introduces an elasto-plastic joint element characterised by strain hardening and softening in the analysis of dynamic soil-structure interaction, the phenomena of sep- aration and sliding on the contact surface between soil and structure can be better simulated and the process can also be described. The interaction problems in a typical soil-structure system are analyzed in terms of elasto-plastic joint element as well as elastic ones. The results show that the elasto-plastic joint element is much better than the elastic one in modelling, especially in that the relative displace- ments accross the joint element can be much greater than that of the elastic case. Separation and slid- ing are not only related to the coefficient of friction and cohesion but also to their changes with plastic volumetric strain.展开更多
基金The project is supported by the Sciences Foundation of the Chinese Academy of Sciences the Disaster Provention Institute of Kyoto University (Japan).
文摘This paper introduces an elasto-plastic joint element characterised by strain hardening and softening in the analysis of dynamic soil-structure interaction, the phenomena of sep- aration and sliding on the contact surface between soil and structure can be better simulated and the process can also be described. The interaction problems in a typical soil-structure system are analyzed in terms of elasto-plastic joint element as well as elastic ones. The results show that the elasto-plastic joint element is much better than the elastic one in modelling, especially in that the relative displace- ments accross the joint element can be much greater than that of the elastic case. Separation and slid- ing are not only related to the coefficient of friction and cohesion but also to their changes with plastic volumetric strain.
