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3D Modeling of Incipient Spall Damage in Shocked FCC Multicrystals


Abstract Shock loading is a complex phenomenon that can lead to failure mechanisms such as strain localization, void nucleation and growth, and eventually spall fracture. Studying incipient stages of spall damage is of paramount importance to accurately determine initiation sites in the material microstructure where damage will nucleate and grow and to formulate continuum models that account for the variability of the damage process due to microstructural heterogeneity. The length scale of damage with respect to that of the surrounding microstructure has proven to be a key aspect in determining sites of failure initiation. Correlations have been found between the damage sites and the surrounding microstructure to determine the preferred sites of spa... (more)
Created Date 2013
Contributor Krishnan, Kapil (Author) / Peralta, Pedro (Advisor) / Mignolet, Marc (Committee member) / Sieradzki, Karl (Committee member) / Jiang, Hanqing (Committee member) / Oswald, Jay (Committee member) / Arizona State University (Publisher)
Subject Mechanical engineering / Constitutive Behavior / Crystal Plasticity / Finite Element Analysis / Microstructure
Type Doctoral Dissertation
Extent 194 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Ph.D. Mechanical Engineering 2013
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis