Peridynamic modeling of dynamic damage of polymer bonded explosive

Deng, Xiaoliang; Wang, Bo

doi:10.1016/j.commatsci.2019.109405

Cited by 23 publications

(7 citation statements)

References 38 publications

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“…The same binder is used in these Mock IDOX samples as in PBX 9501, but the binder may interact differently with the surface of IDOX crystals than with HMX crystals due to chemical and surface energy effects. Binder-crystal adhesion energy is an ongoing area of study, [49][50][51][52] including a recent single-crystal delamination study with HMX and an HTPB binder, 53 which though different from the PBX 9501 binder system should have similar parameters at play. 54 Another contributing factor could be anisotropic responses of how the crystals are being loaded.…”

Section: Discussionmentioning

confidence: 99%

Compressive strength of the plastic-bonded explosive surrogate idoxuridine under quasistatic and dynamic compression

Burch

Euser

Morrow

et al. 2022

Journal of Composite Materials

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Inert simulant materials, or “mocks”, are often used as surrogates for plastic-bonded explosives (PBX) in non-detonative tests in order to mitigate hazards. Mocks should reproduce as many non-detonative properties of the explosive as possible, including structural behavior in a variety of thermal and mechanical environments. Recently, the molecular crystal idoxuridine (IDOX) has been identified as an ideal mock for the main component in the explosive polymer-matrix composite PBX 9501, and has performed favorably under quasistatic loading conditions. Here, in order to assess robustness over a range of mechanical environments, plastic-bonded IDOX was compression tested from 0.001/s to 2000/s strain rates and compared to PBX 9501 historical data. Plastic-bonded IDOX showed good agreement to PBX 9501 across these strain rates, justifying continued development and production as a mock.

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Section: Discussionmentioning

confidence: 99%

Compressive strength of the plastic-bonded explosive surrogate idoxuridine under quasistatic and dynamic compression

Burch

Euser

Morrow

et al. 2022

Journal of Composite Materials

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“…So far, PD has been extensively applied in simulating the problems associated with damage and failure of various materials with a good accuracy and many promising results have been achieved [24][25][26][27]. Recently, PD modeling are also used to investigate the dynamic responses of PBXs and the competing damage mechanisms are revealed [28][29][30]. The primary results indicate that the PD modeling can facilitate capture of transgranular and intergranular fracture phenomena in PBXs [28].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, PD modeling are also used to investigate the dynamic responses of PBXs and the competing damage mechanisms are revealed [28][29][30]. The primary results indicate that the PD modeling can facilitate capture of transgranular and intergranular fracture phenomena in PBXs [28]. However, in terms of PD modeling of PBX behaviors, none of them includes exothermal chemical reactions, which are supposed to be important for dynamic evolution of hotspots field inside the PBX under impact loading [3,5,17].…”

Section: Introductionmentioning

confidence: 99%

Peridynamic modeling of damage and non-shock ignition behavior of confined polymer bonded explosives under impact loading

Deng

Zhao²,

Huang³

2023

Phys. Scr.

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A mechanical-thermal-chemical coupled peridynamic (PD) modeling for analyzing the damage and non-shock ignition behavior of polymer bonded explosives (PBXs) subject to impact loading has been presented. The friction and heat conduction and Arrenhenius law are embedded into the PD theory, ensuring that the simulation model is capable of capturing major features of dynamic damage response of PBX. A PD material model considering plasticity and the asymmetric behaviors of PBX under tensile and compressive loadings is proposed in this study. For a ring-shaped PBX 9501 sample confined by the steel structures, the simulation results indicate that the PBX 9501 in the regions towards the impact face and support face suffers from the serious damage. Meanwhile, the corresponding average temperatures in these two regions are also higher than their counterparts in other regions due to the more intense interaction between PBX 9501 and the steel confinement structures. The ignition time decreases with the increasing impact velocity within the range of 40-120 m/s. The internal steel shell response is analyzed according to its velocity history within a representative box. It is found that the deformation process of internal steel shell is closely related to the complicated flow behaviors of PBX 9501.

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“…Among failure prediction approaches, the phenomenological failure model is defined as failure occurrence when the stress or strain of an element reaches a specific value. The strain-based failure model is more suitable than the stress-based failure model for dealing with structures undergoing severe plastic deformation and has proven quite useful in collision and failure problems [15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

Kim

Choi

et al. 2022

Metals

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Austenitic stainless steel is useful for storing and transporting liquefied natural gas (LNG) at temperatures below −163 °C due to its superior low-temperature applications. This study develops a computational method for the failure prediction of 304L stainless steel sheet to utilize its usability as a design code for industrial purposes. To consider material degradation in a phenomenological way during the numerical calculation, the combined Swift–Voce equation was adopted to describe the nonlinear constitutive behavior beyond ultimate tensile strength. Due to the stress state-dependent fracture characteristics of ductile metal, a modified Mohr–Coulomb fracture criterion was adopted using stress triaxiality and Lode angle parameter. The numerical formulation of the elastoplastic-damage coupled constitutive model with fracture locus was implemented in the ABAQUS user-defined subroutine UMAT. To identify the material and damage parameters of constitutive models, a series of material tests were conducted considering various stress states. It has been verified that the numerical simulation results obtained by the proposed failure prediction methodology show good agreement with the experimental results for plastic behavior and fractured configuration.

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Peridynamic modeling of dynamic damage of polymer bonded explosive

Cited by 23 publications

References 38 publications

Compressive strength of the plastic-bonded explosive surrogate idoxuridine under quasistatic and dynamic compression

Compressive strength of the plastic-bonded explosive surrogate idoxuridine under quasistatic and dynamic compression

Peridynamic modeling of damage and non-shock ignition behavior of confined polymer bonded explosives under impact loading

A New Computational Method for Predicting Ductile Failure of 304L Stainless Steel

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