The constraint condition for the strain energy density function of incompressible hyperelasticity is proposed.

通过对各种有限元方法的分析比较，适当修改了已有的应变能密度函数的形式使之更适合数值计算。

The evaluation also shows that the modified 8-chains model can characterize accurately the hyperelasticity of tire rubber at different temperatures.

研究结果还表明，修正八链模型可以较准确表征不同温度下轮胎胶料的超弹性力学行为。