Macroscopic Elastoplastic Deformation of Nanoporous Materials withMultiple Interface Residual Stress

来源 :第二届中国国际复合材料科技大会 (CCCM-2) | 被引量 : 0次 | 上传用户:jxysb250
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Nanoporous materials usually produce interface residual stresses, which inevitably have effects on the overall elstoplastic mechanical behaviors of such materials.The present work aims to develop a micromechanics model with multiple interface residual stresses to systematically investigate the influences of interface effects and void microstructures on the macroscopic elastoplastic deformations of nanoporous materials.
其他文献
The pre-oxidized SiO2 layer and salt-bath plated Ti5Si3 coating layer were developed on the surface of SiCP.Effects of surface states of SiCP on the microstructures and tensile properties of 2 vol.% S
The temporal evolution of domain structure and its piezoelectric behavior of ferroelectric material BaTiO3 during the transition process from rhombohedral to tetragonal phase under an applied electric
Temperature-sensitive gels can produce volume transition phenomenon in the vicinity of phase transition temperature, leading to their wide application in many engineering fields.According to the volum
会议
Bimodal sized (Nano-SiCp: n and Micro-SiCp: m) SiCp/Al2014 composites with different volume percent of particles (0.5n + 4m, 0.5n + 6m, 1n + 4m) were fabricated by semi-solid stirring combined with ho
会议
在高温、氢氛下使纤维表面铜盐涂层还原为铜, 通过XRD、SEM和EDS对纤维表面镀层形貌和成分进行了观察与分析,获得的碳纤维表面铜层呈现粒状连续分布,与纤维表面结合过程具有物理和化学的共同特点。
In this study, MoS2/reduced graphene oxide hybrid material (MoS2/RGO) was synthesized through a facile and effective hydrothermal method.Fe-Ni matrix composites with different weight fractions of MoS2
针对航天密封材料的使用特性,引入了三维编织结构石英纤维预制体作为热密封件。室温下测试了三维编织结构石英纤维预制体的单向压缩、循环压缩和应力松弛性能。试验结果表明:三维编织结构预制体具有良好的可压缩性,压缩应变可达到60%;循环压缩的首次压缩变形后瞬时能够达到近似完全回弹,峰值载荷随后续循环次数的增加呈非线性降低,10次压缩循环后,回弹率一般仍可达到70%以上;应力松弛曲线分为两个阶段:快速松弛阶段
针对复合材料曲型加筋板,基于有限单元法,研究了其建模方法和自由振动。基于层合板理论,及Mindlin-Reissener板理论,对复合材料层合板进行建模;同时基于Timoshenko梁理论,对曲型加强筋进行建模。曲型加强筋可任意铺设在板上,而无需与板共节点。同时当筋的数量位置发生改变时,无需对板进行再次划分网格。
本文通过有限元软件msc.marc对不同铺层结构的复合材料管进行屈曲分析,并对500kV复合横担塔进行受力分析,得出左横担中支柱绝缘子所受的最大轴力和弯矩,并将轴力和弯矩分别加载至支柱绝缘子的实体模型中,计算不行铺层结构各层最大应力,得出相关结论.
This paper briefly describes the characteristic of fine weave pierced fabric, which is pre-disposing needle array in Z direction and integrated piercing woven fabrics in X-Y direction.This paper also