摘要
采用ESI公司的PAM-CRASH软件进行GLARE材料加筋壁板的弹头冲击损伤数值仿真分析。运用CDM模型,最大应变准则,JOHNSON-COOK本构模型建立了合理的纤维金属层板分析模型,利用国外试验数据对模型进行验证,在结果可靠的前提下分析了GLARE材料加筋壁板不同位置抗冲击性能的差异,计算结果表明,蒙皮背面的损伤要大于正面,且越靠近筋条的位置,结构件的抗冲击性能越好。
Use the PAM - CRASH software which made of ESI company to simulate warhead impact GLARE stiffened panel. Use CDM model,the maximum strain criterion, JOHNSON - COOK model to es- tablish a reasonable FMLs analysis model, and take some relative test data to verify this model,when the results compared to the experiments'data is similar, established warhead impact GLARE stiffened panel of different positions. The results show that the damage on the back of skin are worse than infront, and the closer of the rod, the better performance of the structure under high speed impact.
出处
《航空计算技术》
2016年第2期47-50,共4页
Aeronautical Computing Technique
基金
国家自然科学基金项目资助(11302105)
航空科学基金项目资助(2014ZF52074)