Derivation and Validation of a Material Model for Clayey Sand for Use Inlandmine Detonation Computational Analyses

Authors: Grujicic, M.¹; Pandurangan, B.²; Coutris, N.²; Cheeseman, B.A.³; Roy, W.N.³; Skaggs, R.R.³

Source: Multidiscipline Modeling in Materials and Structures, Volume 5, Number 4, 2009 , pp. 311-344(34)

Buy & download fulltext article:

Price: $35.00 plus tax (Refund Policy)

Abstract:

A large-strain/high-deformation rate model for clay-free sand recently proposed and validated in our work [1,2], has been extended to sand containing relatively small (< 15vol.%) of clay and having various levels of saturation with water. The model includes an equation of state which represents the material response under hydrostatic pressure, a strength model which captures material behavior under elastic-plastic conditions and a failure model which defines conditions and laws for the initiation and evolution of damage/failure in the material. The model was validated by comparing the computational results associated with detonation of a landmine in clayey sand (at different levels of saturation with water) with their computational counterparts.

Keywords: SAND; MATERIAL MODEL; DETONATION; SHALLOW BURIED LANDMINE; BLAST LOADING

Document Type: Research article

DOI: http://dx.doi.org/10.1163/157361109789807990

Affiliations: 1: Department of Mechanical EngineeringClemson University, Clemson SC 29634;, Email: mica.grujicic@ces.clemson.edu 2: Department of Mechanical EngineeringClemson University, Clemson SC 29634 3: Army Research Laboratory - Survivability Materials Branch, Aberdeen, Proving Ground, MD 21005-5069

Publication date: 2009-10-01