IGA-PD penalty-based coupling for immersed air-blast fluid-structure interaction: a simple and effective solution for fracture and fragmentation

被引：19
作者：
Behzadinasab, Masoud [1 ]
Hillman, Michael [2 ]
Bazilevs, Yuri [1 ]
机构：
[1] Brown Univ, Sch Engn, Providence, RI 02912 USA
[2] Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16802 USA
来源：
JOURNAL OF MECHANICS | 2021年 / 37卷
基金：
美国国家科学基金会;
关键词：
FSI; IGA; peridynamics; volumetric penalty; COMPRESSIBLE FLOWS; DUCTILE FRACTURE; SUPG FORMULATION; HEART-VALVES; COMPUTATION; NURBS; STABILIZATION; ALGORITHM; FRAMEWORK; VARIABLES;
D O I：
10.1093/jom/ufab033
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We present a novel formulation for the immersed coupling of isogeometric analysis and peridynamics 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 under blast loading that clearly demonstrate the power and robustness of the proposed methodology.
引用
收藏
页码：680 / 692
页数：13
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