Accession Number:

ADA571176

Title:

Enhancements and Analysis of CTH Software for Underbody Blast

Descriptive Note:

Final rept. 1 Oct 2010-31 Dec 2012

Corporate Author:

MISSISSIPPI STATE UNIV MISSISSIPPI STATE CENTER FOR ADVANCED VEHICULAR SYSTEMS

Report Date:

2013-02-01

Pagination or Media Count:

80.0

Abstract:

Accurate tools and procedures for simulating the blast effects of shallow buried explosive devices are critical to the Department of Defenses efforts to design blast-resistant vehicles that can increase crew survivability and counter the threat from improvised explosive devices. Of the various computer codes available for modeling explosive effects, the CTH CHART Squared to the Three-Halves Eulerian hydrocode from Sandia National Laboratories is one of the most popular and is considered a standard tool for blast simulations. TARDEC is using CTH as one of its tools for designing blast-resistant vehicles. Two potential areas of improvement to CTH that will enhance its value are implementation of Hybrid Elastic-Plastic HEP Geo-material model to support buried mine simulation and procedures for utilizing CTH-generated blast loads in LS-DYNA structural dynamics simulations. Both of these enhancements have been implemented into CTHv9.1 and tested in this project

Subject Categories:

  • Computer Programming and Software
  • Surface Transportation and Equipment
  • Explosions
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE