Peridynamics Modeling of a Shock Wave Perturbation Decay Experiment in Granular Materials with Intra-granular Fracture

Behzadinasab, Masoud; Vogler, Tracy; Peterson, Amanda Marie; Rahman, Rezwanur; Foster, Janet

doi:10.1007/s40870-018-0174-2

Cited by 38 publications

(26 citation statements)

References 24 publications

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“…Peridynamics, as a nonlocal extension of continuum mechanics [13,14], has been successful in modeling damage evolution and material failure [15,16,13]. Dynamic brittle fracture [17][18][19], fatigue and thermallyinduced cracking [20,16], fracture in porous and granular materials [21][22][23], failure of composites [24,25], corrosion damage [26][27][28][29], and stress corrosion cracking [30][31][32], are among some applications of this formulation in modeling material damage.…”

Section: Introductionmentioning

confidence: 99%

Efficient Solutions for Nonlocal Diffusion Problems Via Boundary-Adapted Spectral Methods

Jafarzadeh

Larios

Bobaru

2020

J Peridyn Nonlocal Model

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We introduce an efficient boundary-adapted spectral method for peridynamic diffusion problems with arbitrary boundary conditions. The spectral approach transforms the convolution integral in the peridynamic formulation into a multiplication in the Fourier space, resulting in computations that scale as ( log ). The limitation of regular spectral methods to periodic problems is eliminated using the volume penalization method. We show that arbitrary boundary conditions or volume constraints can be enforced in this way to achieve high levels of accuracy. To test the performance of our approach we compare the computational results with analytical solutions of the nonlocal problem. The performance is tested with convergence studies in terms of nodal discretization and the size of the penalization parameter in problems with Dirichlet and Neumann boundary conditions.

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Section: Introductionmentioning

confidence: 99%

Efficient Solutions for Nonlocal Diffusion Problems Via Boundary-Adapted Spectral Methods

Jafarzadeh

Larios

Bobaru

2020

J Peridyn Nonlocal Model

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“…The extension to thin structures will permit use of nonlocal frictional contact in isogeometric heart valve simulations (extending the frictionless modeling of [13]). Robustness in situations with material damage will be essential to applications such as studying the effect of friction on shock wave decay in granular materials [4] (cf. Remark 13).…”

Section: Resultsmentioning

confidence: 99%

“…19 Simulated damage contours due to impact of a hard sphere on a brittle target, computed with a state-based and b naive models. Snapshots correspond to the half-plane views at time t = 0.2 ms recent study on mesoscale modeling of granular materials [4] considered the effects of inter-granular contact friction and intra-granular fracture on dynamic behavior of grains under compressive shock loading. The naive friction model was used in the work.…”

Section: Remark 13mentioning

confidence: 99%

Peridynamic Modeling of Frictional Contact

Kamensky

Behzadinasab

Foster

et al. 2019

J Peridyn Nonlocal Model

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This paper reviews several existing peridynamic models for frictional contact (previously documented only in the gray literature), and extends them to remedy various shortcomings. In particular, we introduce a state-based nonlocal friction formulation that corrects for loss of angular momentum balance and objectivity in a widely used frictional extension of short-range contact forces. We demonstrate the properties of various peridynamic contact models by applying them in finite element and meshfree peridynamic analyses of benchmark problems and an impact/penetration test.

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“…Among those various methods available in the literature, peridynamics as a nonlocal form of continuum mechanics has increasingly used to study fracture and crack propagation in many fields and has been validated against a variety of experimental tests [24][25][26][27][28][29]. In peridynamics, the damage is a part of the solution not a part of the problem.…”

Section: Materials Modelsmentioning

confidence: 99%

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Abedini

Mutalib

Mehrmashhadi

et al. 2020

Front. Struct. Civ. Eng.

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Reinforced concretes (RC) have been widely used in constructions. In construction, one of the critical elements carrying a high percentage of the weight is columns which were not used to design to absorb large dynamic load like surface bursts. This study focuses on investigating blast load parameters to design more resistant RC columns to blast loads. The numerical model is based on finite element analysis (FEA) using LS-DYNA. Numerical results are validated against blast field tests available online. Couples of simulations are performed with changing blast parameters to study effects of various scaled distances on the nonlinear behavior of RC columns. According to simulation results, the scaled distance has a substantial impact on the blast response of RC columns. With lower scaled distance, higher peak pressure and larger pressure impulse are applied on the RC column. Eventually, keeping the scaled distance unchanged, increasing the charge weight or shorter standoff distance cause more damage to the RC column. Intensive studies are carried out to investigate the effects of scaled distance and charge weight on the damage degree and residual axial load carrying capacity of RC columns with various column width, longitudinal reinforcement ratio and concrete strength. Results of this research will be used to assessment the effect of an explosion on the dynamic behavior of RC columns.

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Peridynamics Modeling of a Shock Wave Perturbation Decay Experiment in Granular Materials with Intra-granular Fracture

Cited by 38 publications

References 24 publications

Efficient Solutions for Nonlocal Diffusion Problems Via Boundary-Adapted Spectral Methods

Efficient Solutions for Nonlocal Diffusion Problems Via Boundary-Adapted Spectral Methods

Peridynamic Modeling of Frictional Contact

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

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