A Novel Plastic Phase‐Field Method for Ductile Fracture with GPU Optimization

Zipeng, Zhao; Huang, Kemeng; Li, Chen; Wang, Changbo; Qin, Hong

doi:10.1111/cgf.14130

Cited by 4 publications

(1 citation statement)

References 53 publications

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“…In recent years, Wang et al 10 successfully captures ductile fracture using MPM and provides a practical way to visualize fracture surface. Further, combining phase-field-based fracture with MPM 11,12 has shown significant advantages in visualizing the crack surface, Fan et al 13 further extends this strategy to brittle fracture in MPM.…”

Section: Fracture Dynamicsmentioning

confidence: 99%

MPM‐driven dynamic desiccation cracking and curling in unsaturated soils

Tu,

Peng,

et al. 2023

Computer Animation & Virtual

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Desiccation cracking of soil‐like materials is a common phenomenon in natural dry environment, however, it remains a challenge to model and simulate complicated multi‐physical processes inside the porous structure. With the goal of tracking such physical evolution accurately, we propose an MPM based method to simulate volumetric shrinkage and crack during moisture diffusion. At the physical level, we introduce Richards equations to evolve the dynamic moisture field to model evaporation and diffusion in unsaturated soils, with which a elastoplastic model is established to simulate strength changes and volumetric shrinkage via a novel saturation‐based hardening strategy during plastic treatment. At the algorithmic level, we develop an MPM‐fashion numerical solver for the proposed physical model and achieve stable yet efficient simulation towards delicate deformation and fracture. At the geometric level, we propose a correlating stretching criteria and a saturation‐aware extrapolation scheme to extend existing surface reconstruction for MPM, producing visual compelling soil appearance. Finally, we manifest realistic simulation results based on the proposed method with several challenging scenarios, which demonstrates usability and efficiency of our method.

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