| Shock and spall behaviors of a high specific strength steel: Effects of impact stress and microstructure |
| Wang W; Zhang HS(张虎生) ; Yang MX(杨沐鑫); Jiang P(姜萍); Yuan FP(袁福平); Wu XL(武晓雷); Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15,North 4th Ring,West Rd, Beijing 100190, Peoples R China.; Yuan, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China.
|
| 发表期刊 | JOURNAL OF APPLIED PHYSICS
 |
| 2017-04-07
|
| 卷号 | 121期号:13 |
| ISSN | 0021-8979
|
| 摘要 | A series of plate-impact experiments were conducted to investigate the influences of impact stress and microstructure on the shock and spall behaviors of a high specific strength steel (HSSS). The HSSS shows a strong positive strain rate sensitivity on the yield strength. With increasing impact stress up to about 6 GPa the spall strength is found to decrease significantly and then levels off with further increasing impact stress. This trend is proposed to be attributed to the accumulation damage within the target as the initial shock-induced compression wave propagates through the target. The microcracks are clearly observed to nucleate from the interfaces between gamma-austenite and B2 phase and propagate along the interfaces or cut through the B2 phase in the HSSS during the spalling process. The Hugoniot elastic limit and the spall strength were found to be highly dependent on the microstructure. The spall strength was found to be higher when the density of the void nucleation sites is lower indicating that the spall strength should be a microstructure parameter of the HSSS under impact tensile conditions depending on the density of phase interfaces. It was also found that there is a tradeoff between the specific yield strength and the spall strength for this HSSS; thus the current findings should provide insights for achieving an optimal combination of both mechanical properties for impact-resistant applications by tailoring the microstructure. Published by AIP Publishing. |
| DOI | 10.1063/1.4979346
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000398636600041
|
| 关键词[WOS] | INDUCED PLASTICITY STEELS
; VOID GROWTH
; STRAIN-RATE
; DUCTILE FRACTURE
; ALLOY STEELS
; MODEL
; COMPRESSION
; DAMAGE
; SOLIDS
; DEFORMATION
|
| WOS研究方向 | Physics
|
| WOS类目 | Physics, Applied
|
| 项目资助者 | NSFC(11672313
; National Key Basic Research Program of China(2012CB932203
; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040503)
; 11472286
; 2012CB937500)
; 11572328)
|
| 课题组名称 | LNM实验平台
; LNM材料介观力学性能的表征
|
| 论文分区 | 二类
|
| 力学所作者排名 | 1
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60568
|
| 专题 | 非线性力学国家重点实验室
|
| 通讯作者 | Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15,North 4th Ring,West Rd, Beijing 100190, Peoples R China.; Yuan, FP (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Wang W,Zhang HS,Yang MX,et al. Shock and spall behaviors of a high specific strength steel: Effects of impact stress and microstructure[J]. JOURNAL OF APPLIED PHYSICS,2017,121,13,.
|
| APA |
Wang W.,张虎生.,杨沐鑫.,姜萍.,袁福平.,...&Yuan, FP .(2017).Shock and spall behaviors of a high specific strength steel: Effects of impact stress and microstructure.JOURNAL OF APPLIED PHYSICS,121(13).
|
| MLA |
Wang W,et al."Shock and spall behaviors of a high specific strength steel: Effects of impact stress and microstructure".JOURNAL OF APPLIED PHYSICS 121.13(2017).
|
修改评论