论文部分内容阅读
运用非线性数值计算方法摸拟冲击碰撞时粘滞弹塑性材料的应力场分布.发现其结果与P-T/T(Maxwell)应力微分方程相同,其冲击加速度数值解与EEVC实验吻合.由此而得到弹塑性复合材料的冲击碰撞应力场合理数值结果,并运用后估计算法对冲击碰撞大变形应力场初始阶段进行了模拟,对汽车安全技术被动保护装置的气流触发控制数学模型的建立提供了可靠依据.
The nonlinear numerical calculation method is used to simulate the stress field distribution of viscoelastic material under impact impact. The results are in agreement with the stress-strain differential equation of PT / T (Maxwell), and the numerical solution of the impact acceleration coincides with the EEVC experiment Elastic-plastic composite impact-collision stress field reasonable numerical results, and the use of post-estimation algorithm for the impact of the initial stage of large deformation stress field simulation, the automotive safety technology passive protection devices to establish a mathematical model of air-trigger control provides a reliable basis .