Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/36367
Title: Mixed-mode Ductile Fracture in Metal Materials for Offshore Applications
Authors: YANG WUCHAO
Keywords: Fracture, Mixed-mode, Fracture toughness
Issue Date: 19-Jul-2012
Source: YANG WUCHAO (2012-07-19). Mixed-mode Ductile Fracture in Metal Materials for Offshore Applications. ScholarBank@NUS Repository.
Abstract: This study has proposed and verified a strain detection method to indicate the physical moment of crack initiation for mixed-mode I and II specimens. The critical fracture toughness for different mixed-mode I and II loadings are determined by using the strain detection approach. In addition, this study also proposes and verifies a striation marking method, which facilitates the determination of the fracture resistance curves for the Mode II dominant specimens. Furthermore, the fracture surfaces with different dominant failure modes have been investigated by combining the experimental observations with the detailed finite element studies on the stress fields. Finally, this research has proposed and verified a hybrid numerical and experimental approach to determine the fracture resistance curves based on the measureable load versus deformation curves for specimens loaded under mixed-mode I and II loadings.
URI: http://scholarbank.nus.edu.sg/handle/10635/36367
Appears in Collections:Ph.D Theses (Open)

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