G.R. Johnson, T.J. Holmquist, A computational constitutive model for brittle materials subjected to large strains, high strain rates and high pressures, Shock-wave and high-strain- rate phenomena in materials, Marcel Dekker Inc.(1992) 1075-1081.
This paper compared the mechanical behavior of 6H SiC under quasi-static and dynamic compression. Rectangle specimens with a dimension of 3 × 3 × 6 mm 3 were used for quasi-static compression tests under three different loading rates (i.e., 10 −5 /s, 10 −4 /s, and 10 −3 /s). Stress–strain response showed purely brittle behavior of the material which was further confirmed by scanning
2019-1-30 · This article presents an analysis of the response of silicon carbide to high velocity impact. This includes a wide range of loading conditions that produce large strains, high strain rates, and high pressures. Experimental data from the literature are used to determine constants for the Johnson–Holmquist constitutive model for brittle materials (JH-1).
Response of boron carbide subjected to high-velocity impact Response of boron carbide subjected to high-velocity impact Holmquist, T.J.; Johnson, G.R. 2008-08-01 00:00:00 This article presents an evaluation of the response of boron carbide (B 4 C) subjected to impact loading under three different conditions. Condition A is produced by plate-impact experiments where the loading condition is
2016-9-21 · In this example the Johnson-Holmquist-Beissel and the Johnson-Holmquist material models are explored to investigate the penetration velocity of a gold projectile impacting on a silicon carbide target. The computed results are compared with published results given by Holmquist and Johnson …
Procedia Engineering 58 ( 2013 ) 194 â€“ 203 1877-7058 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of the Hypervelocity Impact Society doi: 10.1016/j.proeng.2013.05.023 The 12 th Hypervelocity Impact Symposium Computational Modeling of Failure for Hypervelocity Impacts into Glass Targets Charles E. Anderson, Jr. a* and Timothy J. Holmquist …
A series of numerical simulations have been conducted to provide insight into the observed lateral stress profiles in shocked silicon carbide reported in . Utilizing a coupled eulerian-lagrangian simulation approach, the thin epoxy layer has been included in the model.
Experimental results for aluminum nitride (AlN), together with data available in the literature, indie that a Mohr-Coulo criterion and the Johnson–Holmquist model fit the experimental data for failure in a brittle manner, whereas the ceramic material exhibited pressure insensitive plastic flow at high pressures.
PDF | This paper presents the characterization and modeling of the U.S. Army Research Laboratory (ARL) surrogate 14.5 mm BS41 armor-piercing (AP) projectile. The ARL BS41 is utilized as a test
Abstract. The impact of a rigid-rod into a low-strength target is an ubiquitous research problem in many scientific and engineering fields. Typically, this impact has been modeled by the expansion of a pressurized spherical cavity in an unbounded elasto-plastic medium.