复合材料球面框球皮冲击损伤形貌的数值分析  

Numerical Analysis in Impact Damage Shape of Composite Pressure Bulkhead Dome

作　　者：刘佳[1] 

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《飞机设计》2014年第3期8-10,共3页Aircraft Design

摘　　要：根据民用飞机复合材料球面框球皮的实际结构铺层与材料体系,建立了三维冲击损伤分析模型并采用Hashin失效准则,对球皮层合板进行数值模拟。同时,采用ASTM D7136试验标准进行低速冲击,试验数据与计算结果吻合较好,表明该模型可用于预测球面框球皮层压板结构在低速冲击下的损伤形貌和尺寸大小。According to the real structure and material of composites bulkhead dome in civil aircraft, a 3D impact damage numerical analytical model was developed based on the Hashin failure criteria. ASTM D7136 standard test was proceed in a low velocity impact, good agreement between experimental results and analytical predictions was obtained. By comparing the data, it is verified that the model could forecast the damage shape and the size of pressure bulkhead dome under a low velocity impact.

关 键 词：球面框 Hashin准则 损伤形貌 

分 类 号：TB332[一般工业技术—材料科学与工程]