Experimental mechanical characterization of plastic-bonded explosives

Le, Viet Dung; Gratton, Michel; Caliez, Michaël; Frachon, Arnaud; Picart, Didier

doi:10.1007/s10853-010-4655-5

Cited by 31 publications

(8 citation statements)

References 7 publications

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“…Since 2000, the CEA and the Gabriel LaMé Laboratory have undertaken an extensive experimental campaign to characterize the various behavioral features of the material M1. This database includes monotonic and cyclic compressions at 20°C and under atmospheric pressure, for four strain rates from 10 -6 s -1 to 10 -3 s -1 ; monotonic and cyclic compressions at 20°C under 5 and 10 MPa, at 10 -5 s -1 ; monotonic and cyclic tension tests at 0°C, 20°C, 35°C and 50°C under atmospheric pressure, at 10 -5 s -1 (Benelfellah, 2013;Caliez et al, 2014;Gratton et al, 2009;Le, 2007;Le et al, 2010;Picart and Brigolle, 2010;Rja Fi Allah, 2006); cyclic compressions at 0°C, 35°C and 50°C under atmospheric pressure, at 10 -5 s -1 (Le, 2007); heterogeneous tests such as the Brazilian test, biaxial tension (plate bending), channel-die test, Iosipescu test and three-point bending, at 20°C under atmospheric pressure, at a strain rate of about 10 -5 s -1 (Benelfellah, 2013;Le, 2007;Picart and Pompon, 2016); alternate tension-compression and compression-tension at 20°C under atmospheric pressure, at 10 -5 s -1 (Benelfellah, 2013; Picart and Brigolle, 2010); as well as a dynamic mechanical analysis (DMA) campaign (Picart and Brigolle, 2010). For each uniaxial or triaxial test of these papers, the longitudinal and transversal strains are given.…”

Section: Hmx-based Pbxsmentioning

confidence: 99%

“…Most of the other models focus on the viscosity of these polymer-bonded materials, and all of them include damage. Le et al (2010) have developed a Maxwell viscoelastic model coupled with isotropic damage and pressure-dependent plastic behavior with isotropic hardening and non-associated flow. Buechler (2012b, 2013) has added combined isotropic/kinematic hardening to the viscoplasticity.…”

Section: Introductionmentioning

confidence: 99%

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Quasistatic mechanical behavior of HMX- and TATB-based plastic-bonded explosives

Plassart

Picart

Gratton

et al. 2020

Mechanics of Materials

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Hmx-based Pbxsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quasistatic mechanical behavior of HMX- and TATB-based plastic-bonded explosives

Plassart

Picart

Gratton

et al. 2020

Mechanics of Materials

Self Cite

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“…The mechanical tests of material properties show that PBX exhibits different mechanical behaviors under different stress states, [18][19][20] which brings great difficulties to numerical modeling. [21][22][23] In this study, the stress state dependent strength model and non-associated flow rule are applied to describe the nonlinear constitutive behavior of the material under complex stress states. Meanwhile, PBX exhibits brittle/quasi-brittle characteristics in the failure mode.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of crack growth in polymer-bonded explosive with cavity subject to compression

Chen

Liu

Huang

et al. 2019

Advances in Mechanical Engineering

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Polymer-bonded explosives are solid high-explosive particles that exhibit brittle behavior in uniaxial tension, quasi-brittle in uniaxial compression, and ductile when subjected to high confining pressure. Tension cracking is the primary failure mode of polymer-bonded explosives quasi-brittle solid, which will lead to overall failure of structural integrity. One characteristic of brittle or quasi-brittle solids, such as polymer-bonded explosives, is that when subjected to overall compressive loading, the tensile cracks will initiate inside the material due to existence of imperfection within the materials. In this study, extended finite element method is applied to analyze the cracking failure mechanism in the PBX 9502 platelike specimen with cavity subjected to overall compression. The nonlinear constitutive behaviors and failure of polymerbonded explosives under complex stress states were described by means of stress state-dependent strength surface, non-associated flow rule, and cohesive failure model. Analysis indicates that the tensile stress around the cavity arises in the specimen under overall compression, and this local tensile stress will lead to cracking initiation. The comparison between simulation results and the experimental data reported by Liu and Thompson shows that they are in agreement with each other on some aspects of crack behaviors, including overall development of crack history and inflection, crack initiation moment, and crack initial speed.

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“…While this constitutive model has some utility in representing the rate and temperature-dependent nature over time scales covering short duration impact events to long-term creep behavior, there are several limitations both in the theoretical aspects of the model and its early implementation. Indeed, viscoSCRAM, or variations 55 of the theory, is used to model plastic bonded explosives over a range of thermomechanical conditions [1][2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A semi-implicit integration scheme for a combined viscoelastic-damage model of plastic bonded explosives

Buechler

Luscher

2014

Int. J. Numer. Meth. Engng

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SUMMARYThis paper presents a new implementation of a constitutive model commonly used to represent plastic bonded explosives in finite element simulations of thermomechanical response. The constitutive model, viscoSCRAM, combines linear viscoelasticity with isotropic damage evolution. The original implementation was focused on short duration transient events; thus, an explicit update scheme was used. For longer duration simulations that employ significantly larger time step sizes, the explicit update scheme is inadequate. This work presents a new semi‐implicit update scheme suitable for simulations using relatively large time steps. The algorithm solves a nonlinear system of equations to ensure that the stress, damaged state, and internal stresses are in agreement with implicit update equations at the end of each increment. The crack growth is advanced in time using a sub‐incremental explicit scheme; thus, the entire implementation is semi‐implicit. The theory is briefly discussed along with previous explicit integration schemes. The new integration algorithm and its implementation into the finite element code, Abaqus, are detailed. Finally, the new and old algorithms are compared via simulations of uniaxial compression and beam bending. The semi‐implicit scheme has been demonstrated to provide higher accuracy for a given allocated computational time for the quasistatic cases considered here. Published 2014. This article is a US Government work and is in the public domain in the USA.

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Experimental mechanical characterization of plastic-bonded explosives

Cited by 31 publications

References 7 publications

Quasistatic mechanical behavior of HMX- and TATB-based plastic-bonded explosives

Quasistatic mechanical behavior of HMX- and TATB-based plastic-bonded explosives

Numerical modeling of crack growth in polymer-bonded explosive with cavity subject to compression

A semi-implicit integration scheme for a combined viscoelastic-damage model of plastic bonded explosives

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