空洞高分子材料屈曲的分子链约束效应

来源 :2014年全国固体力学学术大会 | 被引量 : 0次 | 上传用户：liuyanan508

【摘要】

：

最近的实验和分子动力学模拟表明,高分子聚合物在自由表面约束较为松弛.这种自由表面也存在于亚微米-纳米尺度空洞表面.近期我们提出一个超弹性力学模型,其考虑了空洞表面和块体的分子链约束.本工作应用该模型:(1)解释经典的均匀化理论和实验测量所得亚微米-纳米空洞聚合物模量之间的巨大差异;(2)研究空洞高分子材料的屈曲(屈曲条件和后屈曲行为).

【作者】

：

唐山李颖 Wing Kam Liu 彭向和郭早阳

【机构】

：

重庆大学航空航天学院,沙坪坝,重庆,400074 Department of Mechanical

【出处】

：

2014年全国固体力学学术大会

【发表日期】

：

2014年11期

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