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Destruction process analysis of composite laminate based on APDL

LI Baofeng,ZHENG Jian,NI Xinhua,ZHAO Lei,ZHONG Guohui,SUN Tao(Department of Artillery Engineering,Ordnance Engineering College,Shijiazhuang 050003,China)  
To study the destruction process of composite laminates,the process from initial destruction to ultimate destruction of composite laminates in [90°/±45°/0°s] layout way is analyzed using customized composite element destruction criteria applying APDL programming.The macro model and micro model are built in ANSYS and destruction stress is analyzed and compared.The results indicate that the destruction stress of macro model is slightly different from the one of micro model,but the laminate destruction process can be intuitively figured out by micro model.APDL programming method can extend the composite strength computation of ANSYS finite element program.
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