Computational modeling of the penetration response of a high-purity ceramic

Simha, C. Hari Manoj; Bless, Stephan; Bedford, A.

doi:10.1016/s0734-743x(01)00036-7

Cited by 39 publications

(26 citation statements)

References 26 publications

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“…Apparently, tensile waves are artificially introduced into the computations when Lagrangian elements are removed from the calculations during penetration, which can cause premature material failure. However, the use of hybrid Lagrangian/meshless methods may not be the only means to computationally simulate ceramic dwell phenomena; the development of more robust microphysically based constitutive models for ceramics or novel element erosion algorithms (Simha et al 2002) might also provide a means for accurately modelling projectile dwell without the need to resort to particle or other meshless methods.…”

Section: Constitutive Modelmentioning

confidence: 99%

Implementation of the Johnson-Holmquist II (JH-2) Constitutive Model into DYNA3D

Gazonas¹

2002

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This report describes the implementation of a fully three-dimensional rate, pressure, and damage-dependent constitutive model for brittle materials such as ceramics into the explicit, Lagrangian finite element code DYNA3D. The model, otherwise known as the Johnson-Holmquist II QH-2) ceramic model, has also been implemented into CTH, EPIC, and LS-DYNA, and is used extensively in modelling the brittle response of ceramics in armor applications. The DYNA3D material driver was used to verify the model implementation for constant strainrate input histories Qohnson, G. R., and T. J. Holmquist. "An Improved Computational Constitutive Model for Brittle Materials." High Pressure Science and Technology, New York:AIP Press, 1993). Also described is the implementation of the JH-3 ceramic model and capabilities for modelling projectile dwell phenomena. The Johnson-Holmquist series of ceramic models (JH-1, JH-2, and JH-3) is currently being used in a broader program aimed at computational optimization of composite lightweight armor for Future Combat System vehicles.n

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Section: Constitutive Modelmentioning

confidence: 99%

Implementation of the Johnson-Holmquist II (JH-2) Constitutive Model into DYNA3D

Gazonas¹

2002

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“…[14], Feng et al [22], Gupta and Ding [27], Johnson and Beissel [32], Lee and Yoo [36], Miller and Colella [45], Naboulsi and Palazotto [47], Roeder and Sun [53], Sherman [56], Simha et al [57], Song et al [60], Stevens and Batra [61], Zaera and Sanchez [75], Xiao [74], and others.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modelling of Contact Elastic-Plastic Flows

Bessonov

Golovashchenko

Volpert

2009

Math. Model. Nat. Phenom.

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Abstract. Wilkins' method has been successfully used since early 60s for numerical simulation of high velocity contact elastic-plastic flows. The present work proposes some effective modifications of this method including more sophisticated material model including the Baushinger effect; modification of the algorithm based on correction of the initial configuration of a solid; a contact algorithm based on the idea of a mild contact.

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“…Various ceramic tiles, such as alumina (Al 2 O 3 ), SiC, AlN, Si 3 N 4 , and TiB 2 , are suggested for use in armors [1], among them alumina tiles are widely used, thanks to the low cost and their natural availability [2]. Since the ceramic tiles are brittle, they are weak in tension loads which occur in projectile impact.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on the effect of aluminum foil wrapping on penetration resistance of ceramic tiles

2017

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Abstract. In this work, energy absorption of ceramic tiles wrapped by aluminum foil on its impact face is experimentally and numerically studied. Penetration tests as well as numerical simulations are employed to obtain Ballistic Limit Velocity (BLV) of the tiles. Experimental and numerical results yield BLV of bare tiles as 145 2 and 141.5 m/s, respectively. For the wrapped tiles, these values are increased to 168 2 and 162 m/s, respectively. Therefore, 13% increase in BLV of the ceramic tiles is obtained by just 2.4% increase in its weight. Moreover, it is shown that energy absorption of the wrapped tiles is at least 11% greater than that of the bare ones. Based on the results, the increase in BLV and energy absorption is due to the increase in the fracture conoid angle which postpones crack propagation to the back plate.

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Computational modeling of the penetration response of a high-purity ceramic

Cited by 39 publications

References 26 publications

Implementation of the Johnson-Holmquist II (JH-2) Constitutive Model into DYNA3D

Implementation of the Johnson-Holmquist II (JH-2) Constitutive Model into DYNA3D

Numerical Modelling of Contact Elastic-Plastic Flows

Experimental and numerical study on the effect of aluminum foil wrapping on penetration resistance of ceramic tiles

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