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3D numerical simulations of sharp nosed projectile impact on ductile targets
- Source :
- International Journal of Impact Engineering. 37:185-195
- Publication Year :
- 2010
- Publisher :
- Elsevier BV, 2010.
-
Abstract
- Three-dimensional FE model is presented for perforation under normal and oblique impact of sharp nosed projectiles on single and layered ductile targets. Numerical simulations have been carried out to study the behavior of Weldox 460 E steel and 1100-H12 aluminum targets impacted by conical and ogive nosed steel projectiles respectively. Weldox 460 E steel targets of 12 mm thickness in single and double layered combination (2 × 6 mm) and 1100-H12 aluminum targets of 1 mm thickness in single and double layered combination (2 × 0.5 mm) impacted at 0°, 15° and 30° obliquity were considered for simulations. The results of monolithic and layered targets were compared for each angle of impact. Monolithic targets were found to have higher ballistic resistance than that of the layered in-contact targets of equivalent thickness. Failure of both the targets occurred through ductile hole enlargement. However, ogive nosed projectile failed 1 mm thick aluminum target through petal formation and conical nosed projectile failed 12 mm thick steel target through a circular or elliptical hole enclosed by a bulge at rear surface. The explicit algorithm of ABAQUS finite element code was used to carry out the numerical simulations. Various parameters which play critical role in numerical simulation such as element size and its aspect ratio have been studied.
- Subjects :
- Materials science
Computer simulation
Projectile
business.industry
Mechanical Engineering
Perforation (oil well)
Ballistics
Aerospace Engineering
Ocean Engineering
Conical surface
Structural engineering
Ogive
Finite element method
Petal formation
Mechanics of Materials
Automotive Engineering
Composite material
Safety, Risk, Reliability and Quality
business
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 0734743X
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- International Journal of Impact Engineering
- Accession number :
- edsair.doi...........4b97b95488c7af9b6a8c36fdac888c3e