On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime
With the advancement of high-velocity kinetic energy weapons, the impact velocity encountered by concrete protective structures has evolved from low to high velocity ranges, rendering traditional rigid projectile penetration theories inadequate for accurately describing the physical mechanisms of de...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
|
| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/15/10/1607 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850257195814354944 |
|---|---|
| author | Hengwei Xu Yonggang Lu Junrun Li Xing Chen Xiaowei Feng Zhengcao Lu |
| author_facet | Hengwei Xu Yonggang Lu Junrun Li Xing Chen Xiaowei Feng Zhengcao Lu |
| author_sort | Hengwei Xu |
| collection | DOAJ |
| description | With the advancement of high-velocity kinetic energy weapons, the impact velocity encountered by concrete protective structures has evolved from low to high velocity ranges, rendering traditional rigid projectile penetration theories inadequate for accurately describing the physical mechanisms of deformation and erosion coupling during penetration. This study establishes a theoretical analytical framework for penetration dynamics under high-velocity conditions with coupled deformation and erosion effects: the critical velocity threshold distinguishing between rigid projectile penetration and hydrodynamic penetration modes is precisely defined based on the initial impact velocity <i>V</i><sub>0</sub>. By integrating empirical mass erosion formulas with cavity expansion theory, a theoretical model encompassing coupled deformation and erosion effects has been developed, incorporating both projectile cross-sectional area evolution and penetration depth prediction. Comparative analysis with published experimental data (small-scale projectiles vertically impacting concrete targets) demonstrates the model’s predictive accuracy, showing maximum errors of 9.5% in critical velocity prediction, 17.89% in projectile cross-sectional area prediction, and 24.4% in penetration depth prediction. |
| format | Article |
| id | doaj-art-62e0fdac8109464bb0f7abf346ecef28 |
| institution | OA Journals |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-62e0fdac8109464bb0f7abf346ecef282025-08-20T01:56:29ZengMDPI AGBuildings2075-53092025-05-011510160710.3390/buildings15101607On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding RegimeHengwei Xu0Yonggang Lu1Junrun Li2Xing Chen3Xiaowei Feng4Zhengcao Lu5Institute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaInstitute of Systems of Engineering, China Academy of Engineering Physics, Mianyang 621900, ChinaWith the advancement of high-velocity kinetic energy weapons, the impact velocity encountered by concrete protective structures has evolved from low to high velocity ranges, rendering traditional rigid projectile penetration theories inadequate for accurately describing the physical mechanisms of deformation and erosion coupling during penetration. This study establishes a theoretical analytical framework for penetration dynamics under high-velocity conditions with coupled deformation and erosion effects: the critical velocity threshold distinguishing between rigid projectile penetration and hydrodynamic penetration modes is precisely defined based on the initial impact velocity <i>V</i><sub>0</sub>. By integrating empirical mass erosion formulas with cavity expansion theory, a theoretical model encompassing coupled deformation and erosion effects has been developed, incorporating both projectile cross-sectional area evolution and penetration depth prediction. Comparative analysis with published experimental data (small-scale projectiles vertically impacting concrete targets) demonstrates the model’s predictive accuracy, showing maximum errors of 9.5% in critical velocity prediction, 17.89% in projectile cross-sectional area prediction, and 24.4% in penetration depth prediction.https://www.mdpi.com/2075-5309/15/10/1607impact velocityprojectile deformationmass erosioncritical velocitydepth of penetration |
| spellingShingle | Hengwei Xu Yonggang Lu Junrun Li Xing Chen Xiaowei Feng Zhengcao Lu On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime Buildings impact velocity projectile deformation mass erosion critical velocity depth of penetration |
| title | On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime |
| title_full | On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime |
| title_fullStr | On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime |
| title_full_unstemmed | On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime |
| title_short | On the Penetration of Projectiles into Semi-Infinite Concrete Targets in a Coupled Deforming and Eroding Regime |
| title_sort | on the penetration of projectiles into semi infinite concrete targets in a coupled deforming and eroding regime |
| topic | impact velocity projectile deformation mass erosion critical velocity depth of penetration |
| url | https://www.mdpi.com/2075-5309/15/10/1607 |
| work_keys_str_mv | AT hengweixu onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime AT yongganglu onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime AT junrunli onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime AT xingchen onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime AT xiaoweifeng onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime AT zhengcaolu onthepenetrationofprojectilesintosemiinfiniteconcretetargetsinacoupleddeforminganderodingregime |