摘要
以渐进损伤方法和双线性内聚力模型为理论基础,结合ABAQUS用户子程序USDFLD对轴棒法C/C复合材料的界面刚度进行了研究。结果表明,轴棒法C/C复合材料的界面切向刚度介于1.0×105～0.5×104 N/mm3;当界面刚度取值过高时,计算得到的极限破坏载荷过低;当界面刚度取值过低时,计算得到的弹性模量偏低。
On the base of progressive damage method and bilinear cohesive model, interface stiffness research of C/C composite made by axial rod method was investigated. The analysis results show that interface tangent stiffness value is in the range of 1.0×10^5～0.5×10^4N/mm3;, the computational limit destruction load is too low when interface stiffness value is too high, and the computational elastic modulus is too low when interface stiffness value is too law.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第20期143-145,共3页
Materials Reports
基金
国防973项目
