Low-velocity perforation of punch-impact-loaded metal plates
- UMIST, Manchester (United Kingdom)
- Univ. of Liverpool (United Kingdom)
The deformation and failure of structures when loaded statically or dynamically is important for safety calculations of various structural systems in the nuclear engineering, vehicle crash-worthiness, offshore engineering, naval architecture, and defense industries. In particular, the deformation and perforation behavior of plates is important for the design of containment and protective structures against projectiles or dropped objects or impact by fragments generated during an industrial explosion. Here, an approximate quasi-static theoretical analysis is presented for the behavior of punch-impact-loaded metal plates. Based on the principle of virtual work, load-deflection relationships are first obtained and then used to predict the energy-absorbing capabilities of plates subjected to low-velocity impacts that cause perforation. It is demonstrated that the theoretical predictions are in good agreement with experimental observations on fully clamped steel plates when material strain rate sensitivity is taken into consideration and provided that perforation does not occur by adiabatic shear plugging.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 231030
- Journal Information:
- Journal of Pressure Vessel Technology, Vol. 118, Issue 2; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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