CTH: A three-dimensional shock wave physics code
TLDR
CTH as mentioned in this paper is a software system under development at Sandia National Laboratories Albuquerque to model multidimensional, multi-material, large deformation, strong shock wave physics, and fracture.About:
This article is published in International Journal of Impact Engineering.The article was published on 1990-01-01 and is currently open access. It has received 818 citations till now. The article focuses on the topics: Explosive material.read more
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Friction Stir Welding and Processing
Rajiv S. Mishra,Zongyi Ma +1 more
TL;DR: Friction stir welding (FSW) is a relatively new solid-state joining process that is used to join high-strength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding as discussed by the authors.
Journal ArticleDOI
Computational methods in Lagrangian and Eulerian hydrocodes
TL;DR: The basic explicit finite element and finite difference methods that are currently used to solve transient, large deformation problems in solid mechanics are reviewed.
Journal ArticleDOI
A strain-based porosity model for use in hydrocode simulations of impacts and implications for transient crater growth in porous targets
TL;DR: In this article, a new e-alpha model is proposed for dealing with porous compaction in numerical modeling of impact crater formation. But the model assumes that the compaction function depends upon volumetric strain rather than pressure.
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Understanding oblique impacts from experiments, observations, and modeling.
Elisabetta Pierazzo,H. J. Melosh +1 more
TL;DR: Although craters' rims may appear circular down to low impact angles, the distribution of ejecta around the crater is more sensitive to the angle of impact and currently serves as the best guide to obliquity of impacts.
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CTH: A software family for multi-dimensional shock physics analysis
E. S. Hertel,R. L. Bell,M. G. Elrick,A. V. Farnsworth,G. I. Kerley,J. M. McGlaun,S. V. Petney,Stewart A. Silling,P. A. Taylor,L. Yarrington +9 more
TL;DR: In this paper, a two-step, second-order accurate Eulerian solution algorithm is used to solve the mass, momentum, and energy conservation equations, which includes models for material strength, fracture, porosity, and high explosive detonation and initiation.
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Towards the ultimate conservative difference scheme. IV. A new approach to numerical convection
TL;DR: In this paper, an approach to numerical convection is presented that exclusively yields upstream-centered schemes, which start from a meshwise approximation of the initial-value distribution by simple basic functions, e.g., Legendre polynomials.
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SLIC (Simple Line Interface Calculation)
W. F. Noh,Paul Woodward +1 more
TL;DR: SLIC as mentioned in this paper is an alternating-direction method for the geometric approximation of fluid interfaces, which can be used in one, two, or three space dimensions, and it is characterized by the following features: (1) Fluid surfaces are represented locally for each mixed- fluid zone, and these surfaces are defined as a composition of one space dimensional components, one for each coordinate direction.
Improvements in the CHART D radiation-hydrodynamic code III: revised analytic equations of state
S.L. Thompson,H.S. Lauson +1 more
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Hypervelocity impact calculations using CTH: Case studies☆
Timothy G. Trucano,J.M. McGlaun +1 more
TL;DR: This paper discusses the use of the CTH shock wave physics code in the calculation of hypervelocity impact phenomena, and provides examples of the contributions of advection, interface tracking, and equation of state (EOS) algorithms to CTH simulations of this type of impact.