得到了幂率型非线性粘弹性材料，特别是改性聚丙稀的裂纹尖端应力、应变和位移场的解答。
The solution of the crack-tip stress, strain fields for the power law type nonlinear viscoelastic materials, especially for the modified polypropylene, is obtained.
气管软骨应力松弛曲线是以对数关系变化的，气管软骨为非线性粘弹性材料。
The tracheal cartilage stress relaxation curve is changed by the logarithm relations, the tracheal cartilage is the non-linear viscoelastic material.
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