Simulation of hard-soft material interaction under impact loading employing the material point method

Liu, Hantao; Jiang, Shan; Chen, Zhen; Gan, Yong; Chang, Jianzhong; Yan-hua, Wang; Tong, Zhihui

doi:10.1007/s11431-015-5780-9

Cited by 3 publications

(3 citation statements)

References 15 publications

(14 reference statements)

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“…From another point of view, the observation that less severe inelastic deformation happens in the crystal in the liquid-to-crystal shock (see Figure c) implies a possible “resistance effect” due to the liquid in front of the crystal. Similar engineering examples of the resistance effect at the continuum level have been observed in impact simulations of hard–soft materials …”

Section: Resultssupporting

confidence: 66%

“…Similar engineering examples of the resistance effect at the continuum level have been observed in impact simulations of hard−soft materials. 44 Figure 7 of ref 16 shows the theoretical melt curve T m = T m (P) for the SRT FF. Comparing that result to the postshock temperature and pressure states in the present simulations, we can predict whether amorphous regions behind the shocks are liquid-like or glass-like.…”

Section: The Journal Of Physical Chemistry Cmentioning

confidence: 99%

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Molecular Dynamics Simulations of Shock Wave Propagation through the Crystal–Melt Interface of (100)-Oriented Nitromethane

2016

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Molecular dynamics (MD) simulations were used to study shock wave passage with normal incidence through the equilibrium interface between (100)-oriented nitromethane and the melt. The simulations were performed using the fully flexible, nonreactive SRT force field (Sorescu, D. C.; Rice, B. M.; Thompson, D. L. The Journal of Physical Chemistry B 2000, 104, 8406–8419). The local kinetic energies (intermolecular, intramolecular, and total) and stress states differ significantly in the liquid and crystal regions, and depend on whether the shock is initiated in the crystal or liquid. The number and spatial distributions of shock-induced molecular disorientations in the crystal for shocks initiated in the crystal are similar to those obtained for analogous simulations for a completely crystalline sample; however, substantial differences in the extent and distribution of shock-induced molecular disorientations in the crystal region were observed when the shock was initiated in the liquid. All three measures of kinetic temperature in the crystal region are higher when the shock is initiated in the crystal than when it is initiated in the liquid. Kinetic temperature profiles exhibit features in the vicinity of the interface considerably different from those in either bulk phase. The shock-induced local mechanical states (von Mises stress) indicate that the crystal is less able to support shear stresses when the shock is initiated in the crystal than when it is initiated in the liquid. There is a strong reflection back into the liquid when the shock wave passes through the liquid and encounters the interface with the crystal. This causes a large increase in the potential energy of the liquid and limits the amount of energy transmitted into the crystal, which limits the molecular disorientations in the crystal. Thus, a shock from liquid to crystal yields less inelastic deformation in the crystal.

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Section: Resultssupporting

confidence: 66%

Section: The Journal Of Physical Chemistry Cmentioning

confidence: 99%

Molecular Dynamics Simulations of Shock Wave Propagation through the Crystal–Melt Interface of (100)-Oriented Nitromethane

2016

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“…The efficiency of the proposed approach was investigated using simulations of simple tensile mechanical, slab penetration tests considering the scenario of a penetrating injury due to a projectile such as a bullet [80]. Liu and his colleagues [81] also simulated the stress wave propagation and subsequent failure evolution of hard-soft material interaction under impact loading by applying force to layers of different materials using the MPM approach.…”

Section: Biological Soft Tissuesmentioning

confidence: 99%

Meshfree and Particle Methods in Biomechanics: Prospects and Challenges

Zhang

Ademiloye

Liew

2018

Arch Computat Methods Eng

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The use of meshfree and particle methods in the field of bioengineering and biomechanics has significantly increased. This may be attributed to their unique abilities to overcome most of the inherent limitations of mesh-based methods in dealing with problems involving large deformation and complex geometry that are common in bioengineering and computational biomechanics in particular. This review article is intended to identify, highlight and summarize research works on topics that are of substantial interest in the field of computational biomechanics in which meshfree or particle methods have been employed for analysis, simulation or/and modeling of biological systems such as soft matters, cells, biological soft and hard tissues and organs. We also anticipate that this review will serve as a useful resource and guide to researchers who intend to extend their work into these research areas. This review article includes 333 references. Highlights  We present an up to date review of meshfree and particle methods, including their advantages and limitations.  We comprehensively discuss past and recent applications of meshfree and particle methods in bioengineering and biomechanics.  We identify research areas, directions, and opportunities for the application of meshfree and particle methods in bioengineering and biomechanics.

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An improved quadrature scheme in B-spline material point method for large-deformation problem analysis

Sun

Gan

Tao

et al. 2022

Engineering Analysis with Boundary Elements

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Simulation of hard-soft material interaction under impact loading employing the material point method

Cited by 3 publications

References 15 publications

Molecular Dynamics Simulations of Shock Wave Propagation through the Crystal–Melt Interface of (100)-Oriented Nitromethane

Molecular Dynamics Simulations of Shock Wave Propagation through the Crystal–Melt Interface of (100)-Oriented Nitromethane

Meshfree and Particle Methods in Biomechanics: Prospects and Challenges

An improved quadrature scheme in B-spline material point method for large-deformation problem analysis

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