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Multi-scale progressive failure modeling of titanium-graphite fiber metal laminates

Posted on:2010-08-12Degree:Ph.DType:Dissertation
University:University of California, Los AngelesCandidate:Hundley, Jacob MichaelFull Text:PDF
GTID:1441390002982226Subject:Engineering
Abstract/Summary:
This dissertation presents a novel multi-scale constitutive model designed to predict the non-linear mechanical response of titanium-graphite fiber metal laminates under the action of varied structural loads. This model incorporates progressive damage mechanisms and energy dissipation phenomena in each of the fiber metal laminate component phases which span the molecular and continuum length scales. Implementation of the multi-scale framework outlined herein is accomplished via augmentation of commercially available finite element and molecular dynamics simulation software. Validation of this integrated multi-scale framework is performed using a diverse battery of fiber metal laminate experimental tests including; bolt bearing, rigid-body impact, and short-beam shear loading configurations. Comparisons of the multi-scale model predictions with measured experimental results are used to establish the accuracy of the model and recommend additional process improvements.
Keywords/Search Tags:Fiber metal, Multi-scale
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