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Framework for Cohesive Zone Model Based Multiscale Damage Evolution in a Fatigue Environment

Thomas, Michael Andrew
http://rave.ohiolink.edu/etdc/view?acc_num=wright1308257790

Abstract Details

2011, Master of Science in Engineering (MSEgr), Wright State University, Mechanical Engineering.
The focus of this research is to develop a framework to track damage evolution in a structural model subjected to a fatigue environment. This framework incorporates a micromechanical approach of continuous damage modeling, where damage in a homogenized representative microstructure is introduced at the continuum scale through the material constitutive matrix. In this research, damage in the representative microstructure is simulated utilizing cohesive zone models (CZM) whose properties are a function of the magnitude of applied stresses and the resulting separation. In order to minimize the mesh dependence of the cohesive zone model an adaptive meshing technique is employed. A fatigue simulation is performed to demonstrate the capability of the framework to predict the initiation and evolution of damage.
Ravi Penmetsa, PhD (Advisor)
Nathan Klingbeil, PhD (Committee Member)
Joseph Slater, PhD (Committee Member)
George Huang, PhD (Other)
82 p.
Engineering; Mechanical Engineering
Micromechanical; Damage Evolution; Cohesive Zone Modeling; Adaptive Meshing; Constitutive Model

Recommended Citations

Citations

  • Thomas, M. A. (2011). Framework for Cohesive Zone Model Based Multiscale Damage Evolution in a Fatigue Environment [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1308257790

    APA Style (7th edition)

  • Thomas, Michael. Framework for Cohesive Zone Model Based Multiscale Damage Evolution in a Fatigue Environment. 2011. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1308257790.

    MLA Style (8th edition)

  • Thomas, Michael. "Framework for Cohesive Zone Model Based Multiscale Damage Evolution in a Fatigue Environment." Master's thesis, Wright State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1308257790

    Chicago Manual of Style (17th edition)

wright1308257790
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© 2011, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.