The stress field in the composite fabric which made by needle punching during tensile test, and the difficulty of calculating the stress - strain property are analyzed from the fabric structure.
根据针刺复合织物结构，分析其在拉伸过程中的内部应力场，说明拉伸应力应变预测计算的困难。
The simulation results of stress field show that it is tensile residual stress around the groove, and compressive residual stress with transition to plate edge.
应力场模拟结果显示，清根坡口附近为拉伸残余应力，向板边过渡为压缩残余应力。
The experimental results show that, under vibration force field, tensile strength, tensile stress at 100% and elongation at break of TPE can be enhanced, and hardness(shore A) of TPE can be improved.
实验结果表明，振动力场的作用可以提高TPE的拉伸强度、100%定伸应力和扯断伸长，改善TPE的硬度。
应用推荐