Influences of the hard segment content, crosslinking degree and density on the compressive stress-strainproperty, compressive stress relaxation and tensile property of PUEF were studied.
The stress field in the composite fabric which made by needle punching during tensile test, and the difficulty of calculating the stress - strainproperty 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。
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The test results show that the fatigue property curve and the cyclic stress-strain curve of LZ50 axletree steel perfectly conform to double logarithm linear relationship.