An explanation for the minimal effect of plate curvature on high velocity penetration hole formation.
Journal Article
·
· Proposed for publication in the International Journal of Solids and Structures.
OSTI ID:1002054
Though not discussed extensively in the literature, it is known among workers in impact and penetration dynamics, e.g. the CTH analysis and development team at Sandia National Laboratories, that curvature of thin plates has a minimal effect on the penetration hole diameter due to a hypervelocity impact. To understand why curvature introduces a minimal effect on penetration hole size we extend a flat plate penetration hole diameter relationship to include the effect of body curvature. The effect of the body curvature on the hole diameter is shown to scale according to the dimensionless plate thickness to radius of curvature of the body i.e. h/R, which is typically small. Indeed for most problems where a single layer shell (plate) can be meaningfully defined, the effect of curvature upon hole diameter is on the order of other uncertainties in the problem, e.g. doubts concerning the appropriate equation of state and strength model, and is often, therefore, negligible.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1002054
- Report Number(s):
- SAND2003-2696J
- Journal Information:
- Proposed for publication in the International Journal of Solids and Structures., Journal Name: Proposed for publication in the International Journal of Solids and Structures. Journal Issue: 15 Vol. 41; ISSN 0020-7683
- Country of Publication:
- United States
- Language:
- English
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