A particle-based multiscale simulation procedure within the material point method framework

Chen, Zhen; Jiang, Shan; Gan, Yong; Liu, Hantao; Sewell, Thomas D.

doi:10.1007/s40571-014-0016-5

Cited by 20 publications

(4 citation statements)

References 23 publications

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“…Because of the large deformation and multi-phase interaction nature of the materials involved, there are limited experimental data available to develop constitutive models of failure, and it is usually difficult to include the mechanisms of the interactions in analytical theory that makes simplifying assumptions, especially when considering dynamics and rate-dependent failure evolution [1,2].…”

Section: Introductionmentioning

confidence: 99%

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

Liu

Jiang

Chen

et al. 2015

Sci. China Technol. Sci.

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Understanding the mechanisms of hard-soft material interaction under impact loading is important not only in the defense industry but also in daily life. However, traditional mesh-based spatial discretization methods that are time consuming owing to the need for frequent re-meshing, such as the finite element method and finite difference method, can hardly handle large deformation involving failure evolution in a multi-phase interaction environment. The objective of this research is to develop a quasi-meshless particle method based on the material point method for the model-based simulation of the hard-soft material interaction response. To demonstrate the proposed procedure, scenarios of a hard-soft material impact test are considered, where a force is applied to layers of materials and a hard bar with an initial velocity impacts a target with layers of different materials. The stress wave propagation and resulting failure evolution are simulated and compared with available data. Future research tasks are then discussed on the basis of the preliminary results. material point method, hard-soft materials, impact, quasi-meshless particle method Citation: Liu H T, Jiang S, Chen Z, et al. Simulation of the hard-soft material interaction under impact loading with the material point method. Sci China Tech Sci,

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Section: Introductionmentioning

confidence: 99%

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

Liu

Jiang

Chen

et al. 2015

Sci. China Technol. Sci.

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“…The Lagrangian terminology ensures the acceleration does not include the convection concept which in strictly Eulerian methods may create a major numerical error. Every element is assumed to deform in the flux of material during this Lagrangian process of computation, so that points within the elements change in proportion as the nodes are moving [46].…”

Section: The Materials Point Algorithmmentioning

confidence: 99%

A review on flow and segregation of granular materials during heap formation

Sardare,

Gharat

2024

J. Phys.: Conf. Ser.

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Segregation is an important process mainly used in industries during the flow of granular materials. A granular medium is repeatedly collected particles that have different properties like size, shape, and density. Heap formation in the industry occurs if particles with various sizes, forms, material densities or surface properties are made of bulk materials, then they spatially separate during formation of the heap. This paper provides a detailed understanding of segregation dynamics in granular flows within industrial processes. Focusing on the intricate interplay of particle characteristics, mixing phenomena, and heap formation methodology, the review delves into the essential aspects influencing the spatial separation of particles. Granular media, comprising particles with distinct properties such as size, shape, and density, undergo segregation during the flow processes commonly employed in industries. The formation of heaps becomes a consequential outcome when bulk materials consist of particles exhibiting variations in size, shape, material density, or surface properties. The comprehensive analysis within this review encompasses detailed insights into granular material flow, the intricacies of mixing, the mechanisms of segregation, and the profound effects of particle characteristics on these processes. Additionally, the paper scrutinizes various methodologies employed in industrial settings for heap formation, providing a holistic perspective on the key factors influencing segregation dynamics in granular flows. This review aims to contribute valuable insights to researchers, engineers, and practitioners involved in the optimization and control of granular material handling within diverse industrial applications.

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“…The predicted metal debris cloud agrees well with the results from shock wave experiments. Recently, we developed a particle-based multiscale simulation procedure that includes a concurrent link between the MPM and Dissipative Particle Dynamics (DPD), and a sequential bridge from MD to DPD (Chen et al, 2014a;Jiang et al, 2015). However, these studies were mainly focused on simulations of metallic single crystals and other materials with relatively simple crystal structures (such as face-centered cubic and body-centered cubic) rather than low-symmetry, anisotropic crystal structures characteristic of HMX and most other organic molecular materials.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical multiscale simulations of crystalline β-octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (β-HMX): Generalized interpolation material point method simulations of brittle fracture using an elastodamage model derived from molecular dynamics

Jiang

Tao

Sewell

et al. 2017

International Journal of Damage Mechanics

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A predictive constitutive model for single-crystal β-octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (β-HMX) under simple loading conditions was developed using a hierarchical multiscale approach based on molecular dynamics and the generalized interpolation material point method. Basic mechanical behaviors, such as elastic and damage responses to external loading conditions, were predicted at the molecular level using molecular dynamics. The molecular dynamics results were used to construct a preliminary elastodamage model for the generalized interpolation material point (GIMP) simulations. Anisotropy of the β-HMX crystal, which affects the secant elastodamage stiffness tensor in the constitutive model, was taken into account. The GIMP method was used to deal with large deformation and fracture. GIMP results predicted using the hierarchically obtained elastodamage model are shown to be in close agreement with the molecular dynamics predictions. Although the evolution of local damage surfaces from GIMP is not as detailed as that from molecular dynamics, the main features of nonlinear elastodamage in the stress–strain relationship are captured by GIMP at reduced computational expense. Thus, this preliminary hierarchical multiscale procedure can be considered as useful for simulations of elastodamage behaviors in brittle materials for engineering purposes.

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A particle-based multiscale simulation procedure within the material point method framework

Cited by 20 publications

References 23 publications

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

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

A review on flow and segregation of granular materials during heap formation

Hierarchical multiscale simulations of crystalline β-octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (β-HMX): Generalized interpolation material point method simulations of brittle fracture using an elastodamage model derived from molecular dynamics

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