On the Inertia Term of Projectile's Penetration Resistance
The effect of the target inertia term of rigid kinetic energy projectiles (KEP’s) penetration resistance is investigated using nonlinear dynamic code LS-DYNA and four constitutive models. It is found that the damage number of target can be used to measure the influence of the inertia term. The small...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/525391 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556755491487744 |
|---|---|
| author | Yu Shan Haijun Wu Fenglei Huang Jinzhu Li |
| author_facet | Yu Shan Haijun Wu Fenglei Huang Jinzhu Li |
| author_sort | Yu Shan |
| collection | DOAJ |
| description | The effect of the target inertia term of rigid kinetic energy projectiles (KEP’s) penetration resistance is investigated using nonlinear dynamic code LS-DYNA and four constitutive models. It is found that the damage number of target can be used to measure the influence of the inertia term. The smaller the damage number is, the less influence the inertia term has. The less dependent the resistance has on projectile velocity, the more accurate it is to treat the resistance as a constant. For the ogive-nose projectile with CRH of 3, when the target is aluminum, steel, or other metals, the threshold velocity for the constant resistance is at least 1258 m/s; when the target is concrete, rock, or other brittle materials, if the velocity of the projectile is greater than 400 m/s or so, the damage number would be very large, and the penetration resistance would clearly depend on the projectile’s velocity. The higher the elastic wave velocity is, the more penetration process is affected by the impact face. |
| format | Article |
| id | doaj-art-8a92a4de6b9c4c20aab9a1e9a990776b |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-8a92a4de6b9c4c20aab9a1e9a990776b2025-02-03T05:44:33ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/525391525391On the Inertia Term of Projectile's Penetration ResistanceYu Shan0Haijun Wu1Fenglei Huang2Jinzhu Li3State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaThe effect of the target inertia term of rigid kinetic energy projectiles (KEP’s) penetration resistance is investigated using nonlinear dynamic code LS-DYNA and four constitutive models. It is found that the damage number of target can be used to measure the influence of the inertia term. The smaller the damage number is, the less influence the inertia term has. The less dependent the resistance has on projectile velocity, the more accurate it is to treat the resistance as a constant. For the ogive-nose projectile with CRH of 3, when the target is aluminum, steel, or other metals, the threshold velocity for the constant resistance is at least 1258 m/s; when the target is concrete, rock, or other brittle materials, if the velocity of the projectile is greater than 400 m/s or so, the damage number would be very large, and the penetration resistance would clearly depend on the projectile’s velocity. The higher the elastic wave velocity is, the more penetration process is affected by the impact face.http://dx.doi.org/10.1155/2013/525391 |
| spellingShingle | Yu Shan Haijun Wu Fenglei Huang Jinzhu Li On the Inertia Term of Projectile's Penetration Resistance Advances in Materials Science and Engineering |
| title | On the Inertia Term of Projectile's Penetration Resistance |
| title_full | On the Inertia Term of Projectile's Penetration Resistance |
| title_fullStr | On the Inertia Term of Projectile's Penetration Resistance |
| title_full_unstemmed | On the Inertia Term of Projectile's Penetration Resistance |
| title_short | On the Inertia Term of Projectile's Penetration Resistance |
| title_sort | on the inertia term of projectile s penetration resistance |
| url | http://dx.doi.org/10.1155/2013/525391 |
| work_keys_str_mv | AT yushan ontheinertiatermofprojectilespenetrationresistance AT haijunwu ontheinertiatermofprojectilespenetrationresistance AT fengleihuang ontheinertiatermofprojectilespenetrationresistance AT jinzhuli ontheinertiatermofprojectilespenetrationresistance |