Exploring the influence of material morphology on durability under cavitation erosion in elastomeric coatings
Abstract
The objective of this research proposal is to develop a multiscale approach to computationallymodel the nanoscale morphology, therm""omechanical properties, and performance of elastomericcoatings for protection of composite marine surfaces subjected to erosive cav""itating flows. Themethodologies envisioned herein are aimed at addressing several fundamental scientificobjectives, including:1." Providing a substantially better understanding of the relationship between block copolymerchemistry and resulting phase morphology",2. Developing new molecular simulations that can shed insight toward non-equilibriumrelaxation processes and damage mechanisms in"" elastomer subjected to the extreme impulsiveloads characteristic of those generated by a collapsing vapor bubble near a surface, a"nd3. Building an understanding of the interface stresses and wave reflections generated by apressure wave transmitting through an elastomeric/anisotropic composite interface.A multiscale computational approach to achieve these objectives is proposed that includes a newmultiresolution coarse-graining scheme for simulating candidate elastomers across the nano- tomeso-scales that is further coupled in a hierarchical manner to finite element simulationsperformed at the microscale. A successful outcome of this approach will yield computationalstrategies to develop elastomeric materials exhibiting substantially improved durability undercavitating flow.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 07, 2017
- Source ID
- N000141712694
Entities
People
- Jay Oswald
Organizations
- Arizona State University
- Office of Naval Research
- United States Navy