Experimental Investigation of Dynamic Fracture Behaviors of Polymethyl Methacrylate
文献类型：会议论文
| 作者 | Gao GY; Zhou J; Li Z |
| 出版日期 | 2016 |
| 会议名称 | 23rd World Forum on Advanced Polymeric Materials (POLYCHAR) |
| 会议日期 | MAY 11-15, 2015 |
| 会议地点 | Univ Nebraska Lincoln, Lincoln, NE |
| 关键词 | crack interaction fracture optical method of caustics semi-circular bending toughness STRESS INTENSITY FACTOR SEMICIRCULAR BEND TECHNIQUE CRACK-PROPAGATION BRITTLE-FRACTURE CAUSTIC ANALYSIS SPECIMEN PMMA PARALLEL FIELD ROCK |
| 通讯作者 | Li, Z (reprint author), Peking Univ, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China. ; Li, Z (reprint author), Peking Univ, Coll Engn, Beijing 100871, Peoples R China. |
| 中文摘要 | Dynamic fracture of polymers plays a vital role in engineering applications. Dynamic fracture behaviors of polymethyl methacrylate were studied using the optical method of caustics. Semi-circular bending specimens were chosen for mixed-mode fracture and crack interaction analysis. The crack initiation, crack propagation, stress intensity factor, and fracture toughness were obtained by analyzing the specke patterns captured during dynamic loading by high-speed imaging techniques. The crack interactions of two symmetric and asymmetric cracks and the influence of damage, including the presence of holes and microcracks on or near the crack path, are discussed. The results show that two cracks on a specimen compete and interact with each other, and lead to the final fracture mode of the specimens. Holes and microcracks on or near the crack path influence the crack path and the crack propagation velocity. The results obtained in this paper could be extended to brittle fracture analysis of materials with multiple cracks or inclusions. |
| 收录类别 | CPCI-S ; EI |
| 会议网址 | 10.1002/masy.201650029 |
| 会议录 | MACROMOLECULAR SYMPOSIA
 |
| 语种 | 英语 |
| WOS记录号 | WOS:000383599400021 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60181]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Gao GY,Zhou J,Li Z. Experimental Investigation of Dynamic Fracture Behaviors of Polymethyl Methacrylate[C]. 见:23rd World Forum on Advanced Polymeric Materials (POLYCHAR). Univ Nebraska Lincoln, Lincoln, NE. MAY 11-15, 2015.10.1002/masy.201650029. |
入库方式： OAI收割
来源：力学研究所
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