Peridynamics using Irregular Domain Discretization with MOOSE-Based Implementation

Conference · Wed Nov 01 00:00:00 EDT 2017

DOI:https://doi.org/10.1115/IMECE2017-71527· OSTI ID:1478648

Chen, Hailong  ^[1]; Hu, Yile ^[2]; Spencer, Benjamin W  ^[1]

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1. Idaho National Laboratory
2. The University of Arizona

In this paper, reformulation of classical bond-based peridynamic thermomechanical model for irregular domain decomposition and its MOOSE-based implicit formulation are presented. First, the irregular grid based peridynamic thermomechanical model is formulated and model parameters are derived. Following this, an implicit formulation for the solution of static or quasi-static problems is presented. Some aspects of the MOOSE-based implementation are given. After that, the formulation is verified against benchmark solutions for thermomechanic problems. Crack initiation and propagation in circular (2D) and cylindrical (3D) nuclear fuels at high temperature are studied using irregular grids.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1478648
• Report Number(s): INL/CON-17-41364-Rev000
• Resource Relation: Conference: International Mechanical Engineering Congress & Exposition, Tampa, Florida, 11/03/2017 - 11/09/2017
• Country of Publication: United States
• Language: English

Related Subjects

42 - ENGINEERING
Peridynamics
Irregular grid
Thermomechanics
Fuels fracture