| Mechanisms of the improved stiffness of flexible polymers under impact loading | |
Chen,Fengxiao1; Fan,Jitang1; Hui,David2; Wang C(王超)3 ; Yuan FP(袁福平)3; Wu XL(武晓雷)3
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| 通讯作者 | Fan, Jitang(Jitang_fan@hotmail.com) |
| 发表期刊 | NANOTECHNOLOGY REVIEWS
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| 2022-12-16 | |
| 卷号 | 11期号:1页码:3281-3291 |
| ISSN | 2191-9089 |
| 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. |
| 关键词 | soft segment flexible polymer stiffness strain rate molecular dynamics |
| DOI | 10.1515/ntrev-2022-0437 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000898094900001 |
| 关键词[WOS] | SEGMENTED POLYURETHANES ; TEMPERATURE-DEPENDENCE ; AB-INITIO ; DEFORMATION ; COMPOSITES ; PROPERTY ; BEHAVIOR ; ALKANE ; MODEL |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 资助项目 | National Natural Science Foundation of China[11602024] ; 111 Project of China[G20012017001] |
| 项目资助者 | National Natural Science Foundation of China ; 111 Project of China |
| 论文分区 | 二类/Q1 |
| 力学所作者排名 | 3+ |
| RpAuthor | Fan, Jitang |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/91279 |
| 专题 | 非线性力学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing, Peoples R China; 2.Univ New Orleans, Dept Mech Engn, Orleans, LA 70148 USA; 3.Chinese Acad Sci, Inst Mech, LNM, 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. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Jp2022FA004.pdf（3400KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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