Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods
A finite cylindrical cavity expansion model for metallic thick targets with finite planar sizes, composed of ideal elastic-plastic materials, with penetration of high-speed long rod is presented by using the unified strength theory. Considering the lateral boundary and mass abrasion of the target, t...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6666770 |
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| _version_ | 1832567426004287488 |
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| author | Juan Wang Junhai Zhao Jianhua Zhang Yuan Zhou |
| author_facet | Juan Wang Junhai Zhao Jianhua Zhang Yuan Zhou |
| author_sort | Juan Wang |
| collection | DOAJ |
| description | A finite cylindrical cavity expansion model for metallic thick targets with finite planar sizes, composed of ideal elastic-plastic materials, with penetration of high-speed long rod is presented by using the unified strength theory. Considering the lateral boundary and mass abrasion of the target, the penetration resistance and depth formulas are proposed, solutions of which are obtained by MATLAB program. Then, a series of different criteria-based analytical solutions are obtained and the ranges of penetration depth of targets with different ratios of target radius to projectile radius (rt/rd) are predicted. Meanwhile, the numerical simulation is performed using the ANSYS/LS-DYNA finite element code to investigate the variations in residual projectile velocity, length, and mass abrasion. It shows that various parameters have influences on the antipenetration performance of the target, such as the strength coefficient b, rt/rd, the shape of the projectile nose, and the impact velocity of the projectile, among which the penetration depth has increased by 18.95% as b = 1 decreases to b = 0 and has increased by 32.28% as rt/rd = 19.88 decreases to rt/rd = 4.9. |
| format | Article |
| id | doaj-art-14f7fc94ad4942f2b85baee166e04bf7 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-14f7fc94ad4942f2b85baee166e04bf72025-02-03T01:01:25ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66667706666770Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long RodsJuan Wang0Junhai Zhao1Jianhua Zhang2Yuan Zhou3College of Science, Chang’an University, Xi’an 710064, ChinaSchool of Civil Engineering, Chang’an University, Xi’an 710061, ChinaCollege of Science, Chang’an University, Xi’an 710064, ChinaCollege of Science, Chang’an University, Xi’an 710064, ChinaA finite cylindrical cavity expansion model for metallic thick targets with finite planar sizes, composed of ideal elastic-plastic materials, with penetration of high-speed long rod is presented by using the unified strength theory. Considering the lateral boundary and mass abrasion of the target, the penetration resistance and depth formulas are proposed, solutions of which are obtained by MATLAB program. Then, a series of different criteria-based analytical solutions are obtained and the ranges of penetration depth of targets with different ratios of target radius to projectile radius (rt/rd) are predicted. Meanwhile, the numerical simulation is performed using the ANSYS/LS-DYNA finite element code to investigate the variations in residual projectile velocity, length, and mass abrasion. It shows that various parameters have influences on the antipenetration performance of the target, such as the strength coefficient b, rt/rd, the shape of the projectile nose, and the impact velocity of the projectile, among which the penetration depth has increased by 18.95% as b = 1 decreases to b = 0 and has increased by 32.28% as rt/rd = 19.88 decreases to rt/rd = 4.9.http://dx.doi.org/10.1155/2021/6666770 |
| spellingShingle | Juan Wang Junhai Zhao Jianhua Zhang Yuan Zhou Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods Shock and Vibration |
| title | Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods |
| title_full | Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods |
| title_fullStr | Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods |
| title_full_unstemmed | Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods |
| title_short | Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods |
| title_sort | study on model of penetration into thick metallic targets with finite planar sizes by long rods |
| url | http://dx.doi.org/10.1155/2021/6666770 |
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