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Modeling the Performance and Failure of Elastomeric Coatings Under Erosive Cavitating Flows


Abstract Finite element simulations modeling the hydrodynamic impact loads subjected to an elastomeric coating were performed to develop an understanding of the performance and failure mechanisms of protective coatings for cavitating environments.

In this work, two major accomplishments were achieved: 1) scaling laws were developed from hydrodynamic principles and numerical simulations to allow conversion of measured distributions of pressure peaks in a cavitating flow to distributions of microscopic impact loadings modeling individual bubble collapse events, and 2) a finite strain, thermo-mechanical material model for polyurea-based elastomers was developed using a logarithmic rate formulation and implemented into an explicit finite element code... (more)
Created Date 2016
Contributor Liao, Xiao (Author) / Oswald, Jay (Advisor) / Liu, Yongming (Committee member) / Jiang, Hanqing (Committee member) / Rajan, Subramaniam (Committee member) / Platte, Rodrigo (Committee member) / Arizona State University (Publisher)
Subject Mechanical engineering / Materials Science / Cavitation erosion / Constitutive model / FEA / Large deformation / Polymer / Viscoelasticity
Type Doctoral Dissertation
Extent 101 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Mechanical Engineering 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis