A Numerical Study on the Shock Resistance Test of Aluminium 2519 Plate

알루미늄 2519 판재의 충격저항성 평가에 대한 수치 해석적 연구

  • Published : 2004.09.01

Abstract

In this paper, the acceptance criteria(Striking Velocities) for the A12519 weldments have been developed. Dynamic impact simulation of A12519 plate was achieved by using LS-DYNA, and predict the projectile velocity and the crack length. Also, Ballistic impact tests of A12519 plate have been performed, and compared with analysis results. Critical velocities of A12519 plate were acquired respectively, and striking velocities of A12519 weldments were calculated. Present work data will be used by basic data in ballistic impact test for A12519 weldments.

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References

  1. MIL-STD-1941, 'Metal-Arc Welding of Homogeneous Armor', 1991
  2. MIL-STD-1946, 'Welding of Aluminum Alloy Armor', 1998
  3. Scott M. G, 'Mechanical and Ballistic Data for A12519 Plate, Forgings, and Weldments', ADA388407, 2001
  4. 이정민 외,'용접부 충격실험용 40mm Shock Slug 개발', GWSD-419-950983, 국방과학연구 소,1995
  5. Johnson G. R, 'A Constitutive Model and Data for 'etals Subjected to Large Strains, High Strain Rates and High Temperatures", 7th Int. Symp, on Ballistics, The Hague, Netherlands, 1983
  6. 'MSC. Mvision materials software', MSC Software Corporation
  7. MIL-P-12235, Projectiles, Plate-ProofingFor Impact or Shock Testing, 1976
  8. Thomas. D. W, 'Weldability of 22119-T851 and 2519-T87 Aluminum Armor Alloys for Use in Army Vehicle Systems", ADAI84296, 1987
  9. 'LS-DYNA Keyword User's Manual', Livemore Software Technology Corporation, 2001