Performance of Elastometric Coatings and Coated Structures Subjected to Long Term Seawater Submersion, UV Radiation, and Arctic Temperatures under Extreme Loading Conditions
Abstract
The proposed work will investigate the effects of aggressive marine environments on the performance of advanced elastomeric coatings. In the United States Navy (USN)these coatings are used on structures for various reasons, including blast/shock survivability, reduction of moisture permeability, and additional resistance to chemical, physical, and biofouling deterioration. Nevertheless, these coatings can also be adversely affected by the harsh conditions under which they operate, leading to a reduction in the baseline performance. In this investigation, a comprehensive experimental and computational study will be conducted to explore the properties of elastomeric coatings and coating/composite systems under environmental conditions of interest to the USN. These conditions will include exposure to saline water (simulating the ocean environment), Ultra Violet (UV) radiations, high strain rates, and temperatures ranging from -50oC to 70oC. These extreme conditions consist of both current and future operating theaters. The emphasis will be on understanding the fundamental physical mechanisms of environmental degradation as well as identifying the adverse effects on the structural integrity of naval structures when subjected to these loading environments. The focus of the work will be on performing experiments using state of the art facilities that have been developed in recent years with ONR / Navy funding to support accelerated aging studies and structural evaluations under severe loading conditions. Corresponding computational models of the experiments will be developed to support validated modeling practices for the reduction of expensive qualification testing. In addition to the elastomeric materials themselves, the study will include an evaluation of the coatings when utilized as part of a system which includes an underlying medium of a composite laminate. Close collaboration with NUWC, Newport will be maintained throughout the course of this project.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 27, 2020
- Source ID
- N001741910005
Entities
People
- Arun Shukia
Organizations
- United States Navy
- University of Rhode Island