【摘要】 发展改进了研究不可压缩超弹性材料的Mooney-Rivlin公式,把材料参数假设成是随时间变化的粘弹性函数,并讨论了粘弹性函数的推导方法,通过工程实例进行了实验计算,并将计算结果与应力松弛试验进行了比较.结果表明,用改进Mooney-Rivlin公式可以简便有效地计算该类材料的粘弹性问题,为解决工程实际问题提供了新的途径.更多还原

【Abstract】 This paper improves the Mooney-Rivlin formula of the hyperelastic and incompressible material,by supposing the material parameter as viscoelastic,and discusses the derivation method of viscoelastic function.And then taking a real engineering problem,the viscoelastic function is obtained and the comparison between the computatual results and exeperimental results of the stress relaxation is achieved.The results indicate that the improved Mooney-Rivlin formula is simple and effective in analyzing scuh viscoelastic problems.Hence,it offers a new way in engineering applications.更多还原