Fracture mechanics theoretical modelling and FEM analysis of 3-Point Bending Specimen suffering cyclic loads

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Yayu Huang, Xiangping Hu
Title: Fracture mechanics theoretical modelling and FEM analysis of 3-Point Bending Specimen suffering cyclic loads
Conference name: 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS
Year: 2011
Pagination: 308-312
ISBN: 978-161284664-4
Publisher: IEEE
City: Guiyang
URI/DOI: 10.1109/ICRMS.2011.5979281
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Mechanical Engineering (Sektionen för ingenjörsvetenskap - avd. för maskinteknik)
School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/ing/
Language: English
Abstract: Fracture mechanics theoretical modelling and Finite Element Method analysis of a pre-cracked 3-Point Bending Specimen (3PBS) have been conducted in this paper. Using the equivalent system of the specimen, fracture mechanical characteristics have been analyzed and the theoretical Dynamic Stress Intensity Factor (DSIF) is obtained later and used together with the Pairs theorem to analyze the fatigue life time of the specimen. Based on the simulations from ABAQUS, dynamic characteristics of the pre-cracked 3PBS are obtained and verified. The results are further analyzed and discussed with special concern on fracture mechanics characteristics of the material and will provide a guideline for further research and practical design
Subject: Mechanical Engineering\Structural Dynamics
Keywords: 3-Point Bending Specimen, Dynamic Stress Intensity Factor, fatigue life analysis, simulation, theoretical modelling
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