Application of Scaled Boundary Finite Element Method in Modelling Fracture Phenomena

Ooi Ean Tat

Institute of Innovation Science and Sustainability

Federation University Australia, Ballarat, VIC 3350, Australia

10:00am, 2nd December (Monday), 2024 (BST, 北京时间),

线下地点：中南大学交通运输工程学院高速列车研究中心3D会议室

线上直播：仿真秀官网、仿真秀APP和腾讯会议（614 662 077）

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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, thermoelastic fracture and hydrogen-assisted stress cracking will be demonstrated.

Biography:

Ooi Ean Tat is an Associate Professor of Engineering and the Head of Engineering in Federation University Australia. He obtained his Bachelor of Engineering (Mechanical) from Universiti Teknologi Malaysia and Doctor of Philosophy (Mechanical Engineering) from Nanyang Technological University, Singapore. He undertakes research in computational mechanics, focusing on development of advanced modelling techniques for engineering applications.

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