IGA-PD Penalty-Based Coupling for Immersed Air-Blast Fluid-Structure Interaction: A Simple and Effective Solution for Fracture and Fragmentation

2021/11/06 by Masoud Behzadinasab, Behzadinasab, Masoud, Michael Hillman +3
Computer Science · Engineering · Environmental Science · #Advanced Numerical Analysis Techniques #Computer Graphics and Visualization Techniques #FOS: Mathematics #Landslides and related hazards #Numerical Analysis (math.NA)

paper · pdf · doi:10.48550/arxiv.2111.03767

openalex publication_date 2021/11/06 · openalex created_date 2022/11/27 · openalex updated_date 2026/07/28

Abstract

We present a novel formulation for the immersed coupling of Isogeometric Analysis (IGA) and Peridynamics (PD) for the simulation of fluid-structure interaction (FSI). We focus on air-blast FSI and address the computational challenges of immersed FSI methods in the simulation of fracture and fragmentation by developing a weakly volume-coupled FSI formulation by means of a simple penalty approach. We show the mathematical formulation and present several numerical examples of inelastic ductile and brittle solids that clearly demonstrate the power and robustness of the proposed methodology.

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