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| 1 | 动力荷载下聚氨酯泡沫材料本构关系研究进展显示文摘聚氨酯泡沫材料是一种应用广泛、应变率敏感、静水压力相关的多孔介质材料。文中综述了近年来国内外聚氨酯泡沫材料本构关系的研究进展。通过对几种应变率相关的本构模型,如粘弹、粘弹塑性等类型本构进展的介绍,分析了这些本构的特点和适用范围。根据已有的实验和本构关系,指出建立聚氨酯泡沫材料动态本构关系过程中需要考虑的主要问题,最后展望了聚氨酯泡沫材料的本构关系发展趋势。 | 褚洪杰 崔国起 王世斌 李林安 吴华杰 | 2012 | 高分子材料科学与工程2012，28，5： | 4 |
| 2 | Unified modeling of high temperature deformations of a Ni-based polycrystalline wrought superalloy under tension-compression, cyclic, creep and creep-fatigue loadings显示文摘The complex deformation behaviors under tension-compression,cyclic,creep and creep-fatigue loadings of a nickel-base polycrystalline wrought superalloy at 650°C and 700°C were experimentally investigated.To uniformly simulate the complex deformation behaviors,the modified viscoplastic constitutive model combined with both the Kachanov damage evolution equation and the Ohno-Wang modification was formulated on the basis of the Chaboche theory.The simulated results on tension-compression behavior,cyclic viscoplastic and creep deformations showed comprehensive predicting ability.With the obtained material parameters,the deformations in creep-fatigue interaction under three dwell types were simulated and the capability of the modified model was further verified with good accuracy. | HUANG Jia SHI Duo Qi YANG Xiao Guang YU Hui Chen DONG Cheng Li | 2015 | Science China(Technological Sciences)2015，58，2： | 2 |
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