stress under impact

In this paper, we measure and analyze the changes of dynamic stress in human skull brain under impact loading.

通过测定和研究颅脑在冲击载荷下的动应力变化情况。

Dynamic Photoelastic Stress Analysis for Human Skull Brain under Impact

颅脑受撞击时的动态光弹性应力分析

Through the repeat impact test of coating workpieces and comparison between the changes of coating and base thickness under different impact times, it is finded that under impact stress even less than yield limit, material of workpieces appeared macroscopical plastic deformation.

通过对带涂层试样的多冲试验，对不同冲击次数下涂层和基体的厚度变化进行对比，发现即使在低于材料屈服极限的冲击应力下，材料也会产生宏观塑性变形。

Combined with the tests, the author uses the damage mechanics theory to study the self-reinforced damage mechanism, reactor life of fatigue damage, and the decay of residual stress under thermal impact action.

从损伤力学理论的角度，结合试验，对反应器的自增强损伤机理、反应器疲劳损伤寿命、热冲击下反应器残余应力的衰减等问题展开研究工作。

Analysis of Dynamic Stress for Human Skull Brain under Impact Loading with Acceleration and Deceleration

颅脑在加速和减速冲击载荷下的动应力分析

Theoretical analysis of crack-tip stress fields in FGMs under anti-plane shear impact loading

功能梯度材料受冲击载荷作用裂纹尖端应力场

The finite element code LS_DYNA is used to investigate the response of the axisymmetry cylindrical shell under the thermal impact, and the curves of displacement vs time and that of stress vs time are obtained.

最后利用有限元程序LS-DYNA对轴对称圆柱壳受高速热冲击作用进行了计算机仿真分析，得到了位移时间曲线和单元的应力时间曲线，同文献已有的结果吻合的较好。