用x -射线衍射、动态力学测定等手段研究了不同拉伸倍数的超高分子量聚丙烯薄膜的力学性能的变化。
The mechanical properties of ultrahigh molecular weight polypropylene films with various draw ratios have been studied by WAXD and dynamic mechanical measurements.
测定了光滑和缺口钨合金材料在不同应变率下动态拉伸性能的变化规律，观察了材料断裂的微观机制。
Law of dynamic tensile property of tungsten alloy with notch or without notch was mensurated, and material microcosmic fragment mechanism was observed.
采用动态剪切流变仪测定了掺纤维沥青胶浆的高温流变特性，结合车辙试验结果评价了此特性对该混合料高温性能的影响。
High temperature rheology of asphalt added fibers was determined and the evaluation of the rheology on the properties of the mix wasperformed in combination with rutting results.
测定了这些复合材料的静、动态压缩性能，并通过材料压缩前后密度变化的测量，定量表征了材料的累计损伤。
The accumulation of damage in the composites is quantified through high-precision density measurements before and after compression.
测定了这些复合材料的静、动态压缩性能，并通过材料压缩前后密度变化的测量，定量表征了材料的累计损伤。
The accumulation of damage in the composites is quantified through high-precision density measurements before and after compression.
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