Weak form of bond-associated peridynamic differential operator for thermo-mechanical analysis of orthotropic structures

Li, Zhiyuan; Huang, Dan; Rabczuk, Timon; Ren, Huilong

doi:10.1016/j.euromechsol.2023.104927

Cited by 13 publications

(1 citation statement)

References 46 publications

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“…Song et al adopted PD to develop an inhomogeneous sea ice model and applied it to simulate crack propagation in a thermomechanical field [29]. Li proposed a weak form of bond-associated PD model for thermomechanical analysis of orthotropic structures [30]. These thermomechanical simulations were modeled only using PD.…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Peridynamic Modeling for Ductile Fracture

et al. 2023

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In this paper, we propose a modeling method based on peridynamics for ductile fracture at high temperatures. We use a thermoelastic coupling model combining peridynamics and classical continuum mechanics to limit peridynamics calculations to the failure region of a given structure, thereby reducing computational costs. Additionally, we develop a plastic constitutive model of peridynamic bonds to capture the process of ductile fracture in the structure. Furthermore, we introduce an iterative algorithm for ductile-fracture calculations. We present several numerical examples illustrating the performance of our approach. More specifically, we simulated the fracture processes of a superalloy structure in 800 ℃ and 900 ℃ environments and compared the results with experimental data. Our comparisons show that the crack modes captured by the proposed model are similar to the experimental observations, verfying the validity of the proposed model.

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Section: Introductionmentioning

confidence: 99%