Please use this identifier to cite or link to this item:
|Title:||Numerical study on craters and penetration of concrete slab by ogive-nose steel projectile|
|Source:||Wang, Z.-l., Li, Y.-c., Shen, R.F., Wang, J.G. (2007-01). Numerical study on craters and penetration of concrete slab by ogive-nose steel projectile. Computers and Geotechnics 34 (1) : 1-9. ScholarBank@NUS Repository. https://doi.org/10.1016/j.compgeo.2006.09.001|
|Abstract:||In the design of defense structures, concrete slabs are often used to provide protection against incidental dynamic loadings such as the impact of a steel projectile. In the present study, the Taylor-Chen-Kuszmaul (TCK) continuum damage model is further improved and successfully implemented into the dynamic finite element code, LS-DYNA, with erosion algorithm. The numerical predictions of impact and exit craters of concrete slab as well as the residual velocity of projectile using the newly-implemented numerical tool show good agreement with experimental observations. The performance of the modified TCK model is evaluated by comparing with the material Type 78 (Mat_Soil_Concrete) and Type 111 (Mat_Johnson_Holmquist_Concrete) available in LS-DYNA. The effect of CRH (caliber-radius-head) ratio of the ogive-nose projectile on the impact crater is also investigated using the new numerical tool. Finally, the maximum penetration depth of steel projectile into a concrete slab is studied and an empirical formula is proposed. © 2006 Elsevier Ltd. All rights reserved.|
|Source Title:||Computers and Geotechnics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2018
WEB OF SCIENCETM
checked on Jan 15, 2018
checked on Feb 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.