报告主题：Application of Scaled Boundary Finite Element Method in Modelling Fracture Phenomena
报告人：Ooi Ean Tat 教授（澳大利亚联邦大学）
报告时间：2025年10月29日（周三）10：00
报告地点：河海大学（江宁校区）乐学楼327
主办单位：力学与工程科学学院动力学与控制研究所
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报告简介：
The scaled boundary finite element method (SBFEM) is a semi-analytical technique that exhibits unique advantages in modelling fracture phenomena. This presentation demonstrates the development of the SBFEM to address fracture problems in engineering from two different aspects; (i) discrete fracture modelling techniques and (ii) diffused modelling techniques. In the discrete fracture approach, the advantages of the SBFEM to accurately compute the stress intensity factors, efficient remeshing using polygons and quadtree meshes are exemplified. In the diffused modelling approach, a phase field-based framework is presented. An adaptive remeshing approach using quadtree meshes enables efficient deployment of the phase field method with the SBFEM, alleviating the need to use very fine meshes over the entire domain. Extensions of the phase field method based on the SBFEM to model fracture and damage phenomena described by MultiPhysics processes, e.g., hydraulic fracture, fatigue fracture, thermoelastic fracture and hydrogen-assisted stress cracking will be demonstrated.
报告人简介：
Dr. Ooi Ean Tat is Professor in Civil and Mechanical Engineering at the Institute of Innovation, Science and Sustainability in Federation University Australia. He obtained his PhD in Mechanical Engineering from Nanyang Technological University in 2006 and completed postdoctoral research training at Nanyang Technological University, the National University of Singapore, the University of Liverpool, and the University of New South Wales. His research in computational mechanics focuses on advancing the Scaled Boundary Finite Element Method (SBFEM), transforming it into a versatile tool for engineering and scientific applications. Key innovations include polyhedral-, polygonal- and quadtree-scaled boundary methods and a generalized SBFEM formulation for nonlinear and multi-physics problems.
