| Theoretical analysis for self-sharpening penetration of tungsten high-entropy alloy into steel target with elevated impact velocities | |
Chen, Haihua1; Zhang, Xianfeng1; Liu, Chuang1; Xiong, Wei1; Tan, Mengting1; Dai LH(戴兰宏)2,3
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| Corresponding Author | Zhang, Xianfeng([email protected]) |
| Source Publication | ACTA MECHANICA SINICA
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| 2021-06-16 | |
| Pages | 13 |
| ISSN | 0567-7718 |
| Abstract | The "self-sharpening" effect has been observed experimentally in the penetration of tungsten high-entropy alloy (WHEA) into steel targets in previous study. From the microscopic observation of the residual WHEA long-rod projectile (LRP), the multiphase structure at micro-scale of WHEA is the key effects on self-sharpening penetration process. In order to describe the distinctive penetration behavior, the interaction between micro phases is introduced to modify the hydrodynamic penetration model. The yield strengths of WHEA phases are determined based on the solid solution strengthening methods. Combined with the elbow-streamline model, the self-sharpening mechanism is revealed in view of the multi-phase flow dynamics and the flow field in the deformation area of the LRP nose is characterized to depict the shear layer evolution and the shape of the LRP's nose as well as the determination of the penetration channel. The self-sharpening coefficient considering the reduction of nose radius is proposed and introduced into the penetration model to calculate the depth of penetration and the penetration channel. Results show that the multi-phase interaction at the microscopic level contributes to the inhomogeneous distribution of the WHEA phases. The shear layer evolution separates part of the LRP material from the nose and makes the nose radius decrease more quickly. It is also the reason that WHEA LRPs have a pointed nose compared with the mushroom nose of WHA heavy alloy (WHA) LRPs. The calculated results agree well with the corresponding experimental data of WHA and WHEA LRPs penetrating into semi-infinite medium carbon steel targets with elevated impact velocities. |
| Keyword | Impact dynamics Long-rod projectile Tungsten high-entropy alloy (WHEA) Self-sharpening penetration Solid solution strengthening |
| DOI | 10.1007/s10409-021-01086-y |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000662114900001 |
| WOS Keyword | LONG RODS ; DYNAMIC DEFORMATION ; INTERFACE DEFEAT ; FEM ANALYSIS ; STRAIN-RATE ; BEHAVIOR ; PROJECTILES ; TRANSITION ; MODELS |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[11790292] ; NSAF Joint Fund[U1730101] |
| Funding Organization | National Natural Science Foundation of China ; NSAF Joint Fund |
| Classification | 二类 |
| Ranking | 3+ |
| Contributor | Zhang, Xianfeng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86947 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Nanjing Univ Sci & Technol, Sch Mech Engn, Xiaolingwei 200, Nanjing 210094, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Haihua,Zhang, Xianfeng,Liu, Chuang,et al. Theoretical analysis for self-sharpening penetration of tungsten high-entropy alloy into steel target with elevated impact velocities[J]. ACTA MECHANICA SINICA,2021:13.Rp_Au:Zhang, Xianfeng |
| APA | Chen, Haihua,Zhang, Xianfeng,Liu, Chuang,Xiong, Wei,Tan, Mengting,&戴兰宏.(2021).Theoretical analysis for self-sharpening penetration of tungsten high-entropy alloy into steel target with elevated impact velocities.ACTA MECHANICA SINICA,13. |
| MLA | Chen, Haihua,et al."Theoretical analysis for self-sharpening penetration of tungsten high-entropy alloy into steel target with elevated impact velocities".ACTA MECHANICA SINICA (2021):13. |
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| Jp2021F280.pdf（2393KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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