Journal ArticleDOI
A plasticity concrete material model for dyna3d
TLDR
In this article, the plasticity concrete material model in the Lagrangian finite element code DYNA3D was assessed and enhanced, and the main modifications include the implementation of a third independent yield failure surface, removal of the tensile cutoff, and extension of the model in tension.About:
This article is published in International Journal of Impact Engineering.The article was published on 1997-10-01. It has received 696 citations till now. The article focuses on the topics: Plasticity & Finite element method.read more
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About the dynamic strength enhancement of concrete-like materials in a split Hopkinson pressure bar test
Qingming Li,H Meng +1 more
TL;DR: In this article, the authors examined the application of split Hopkinson pressure bar (SHPB) to determine the dynamic strength of concrete-like materials whose compressive strength is hydrostatic-stress-dependent and showed that the apparent dynamic strength enhancement beyond the strain-rate of 102 s−1 is strongly influenced by the hydrostatic stress effect due to the lateral inertia confinement in a SHPB test.
Journal ArticleDOI
Local impact effects of hard missiles on concrete targets
TL;DR: In this paper, a collection of empirical formulae to predict the penetration depth, scabbing thickness and perforation thickness is presented in both Imperial and SI units and the current status of various design codes is summarized based on a dimensional analysis, dominant non-dimensional parameters that may influence the local impact effects on concrete targets are obtained and then used to present some of the test data Various nose shape factors are compared and a unique definition of the nose shape factor is suggested Analytical models and numerical simulation methods for penetration are summarized Criticisms are made for the current understanding of
Journal ArticleDOI
Analysis of building collapse under blast loads
TL;DR: The analysis of the structural failure of a reinforced concrete building caused by a blast load is presented in this paper, where all the process from the detonation of the explosive charge to the complete demolition, including the propagation of the blast wave and its interaction with the structure is reproduced.
Journal ArticleDOI
Further investigation on the dynamic compressive strength enhancement of concrete-like materials based on split Hopkinson pressure bar tests. Part I: Experiments
TL;DR: Zhang et al. as discussed by the authors employed numerical simulation to further demonstrate that the unexpected radial confinement in an SHPB test is responsible for the increase of the dynamic compressive strength of concrete-like materials at strain-rates from 10 1 to 10 3 ǫs −1.
Journal ArticleDOI
Evaluation of typical concrete material models used in hydrocodes for high dynamic response simulations
Zhenguo Tu,Yong Lu +1 more
TL;DR: In this article, the authors present a comprehensive evaluation study of several widely used concrete material models, including LS-DYNA, RHT, and AUTODYN, to evaluate their actual performances under various loading conditions.
References
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Journal ArticleDOI
Behavior of Concrete Under Biaxial Stresses
Helmut B. Kupfer,Kurt H. Gerstle +1 more
TL;DR: In this paper, the results of an extensive series of tests of three types of concrete under biaxial loadings are used to develop stress-strain relations for concrete subjected to bialastic stress states, by means of a decomposition of the stresses and strains into their hydrostatic and deviatoric portions.
Book
Plasticity in reinforced concrete
TL;DR: In this article, some basic properties of concrete and steel are discussed and failure criteria of concrete elasticity and failure of brittle fracture models are discussed. But the authors focus on the failure criteria and not the elasticity of the model.
Journal ArticleDOI
Behavior of Concrete Under Biaxial Stresses
TL;DR: In this article, the authors report that the BIAXIAL TENSILE STRENGTH of CONCRETE is APPROXIMATELY EQUAL to its UNIAXial TENSION STRENGTH.
Book
High velocity impact dynamics
TL;DR: In this article, the authors present a survey of computer codes for impact simulation, including the following: Introduction to Energetic Materials (C. Mader et al., 2017) and Numerical Modeling of Impact Involving ENERgetic Materials.