Mechanisms of the improved stiffness of flexible polymers under impact loading
文献类型：期刊论文
| 作者 | Chen,Fengxiao3; Fan,Jitang3; Hui,David2; Wang C(王超)1 ; Yuan FP(袁福平)1; Wu XL(武晓雷)1
|
| 刊名 | NANOTECHNOLOGY REVIEWS
 |
| 出版日期 | 2022-12-16 |
| 卷号 | 11期号:1页码:3281-3291 |
| 关键词 | soft segment flexible polymer stiffness strain rate molecular dynamics |
| ISSN号 | 2191-9089 |
| DOI | 10.1515/ntrev-2022-0437 |
| 通讯作者 | Fan, Jitang(Jitang_fan@hotmail.com) |
| 英文摘要 | The flexible polymers have an outstanding impact-resistant performance because of the improved stiffness upon a high speed loading. At the aspect of microstructure, the soft segments make an important contribution. In this article, molecular dynamics simulation is carried out to reveal the dynamic mechanical behavior of a mono helical soft segment. The tensile loadings at various strain rates are conducted. The stress-strain relations and strain rate dependencies of mechanical properties are derived. The evolution of potential energy with straining accompanied by the disentanglement of molecular chain is characterized. The characteristic molecular chain of dynamic mechanical response is determined. The intrinsic physical origins of straightening of characteristic molecular chain and bond angle expansion are explored. New parameters are defined to quantitatively analyze the micro mechanisms and their rate dependencies, which are linked to the dynamic mechanical properties. This work is full of interest to fill a knowledge gap of the physical origins of dynamic mechanical behavior of flexible polymers. |
| 分类号 | 二类/Q1 |
| WOS关键词 | SEGMENTED POLYURETHANES ; TEMPERATURE-DEPENDENCE ; AB-INITIO ; DEFORMATION ; COMPOSITES ; PROPERTY ; BEHAVIOR ; ALKANE ; MODEL |
| 资助项目 | National Natural Science Foundation of China[11602024] ; 111 Project of China[G20012017001] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000898094900001 |
| 资助机构 | National Natural Science Foundation of China ; 111 Project of China |
| 其他责任者 | Fan, Jitang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91278]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing, Peoples R China 2.Univ New Orleans, Dept Mech Engn, Orleans, LA 70148 USA; 3.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chen,Fengxiao,Fan,Jitang,Hui,David,et al. Mechanisms of the improved stiffness of flexible polymers under impact loading[J]. NANOTECHNOLOGY REVIEWS,2022,11(1):3281-3291. |
| APA | Chen,Fengxiao,Fan,Jitang,Hui,David,王超,袁福平,&武晓雷.(2022).Mechanisms of the improved stiffness of flexible polymers under impact loading.NANOTECHNOLOGY REVIEWS,11(1),3281-3291. |
| MLA | Chen,Fengxiao,et al."Mechanisms of the improved stiffness of flexible polymers under impact loading".NANOTECHNOLOGY REVIEWS 11.1(2022):3281-3291. |
入库方式： OAI收割
来源：力学研究所
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