Carbon fiber composites and sandwich structures in harsh marine environment for arctic naval operations
Abstract
US Navy Arctic Roadmap for 2014 2030 by Admiral Jonathan W. Greenert clearly articulates detailed plans for investments necessary for future US Navy capabilities for Arctic operations considering harsh climate, vast distances, and little infrastructure in the Arctic region. Carbon fiber reinforcement (with suitable chemical sizing optimized for extreme cold weather use) and Vinyl Ester based polymer resin for fiber reinforced composites, coupled with PVC or balsa wood foam core material show tremendous promise for use in ship structures and remote vehicles for use in harsh marine environment. With the increased access to Arctic Ocean in the coming decade, it is critical to evaluate and optimize this material system for robust performance in extreme cold regions followed by periodic thawing and warm temperature cyclical climate exposure. The proposed research will evaluate the effect of cold temperature and coupled sea water effects on the materials (carbon fiber, fiber-resin sizing, matrix resin, and core materials). Based on the initial research, optimized material combination will be chosen for subsequent research on the performance of laminates and sandwich structures, prepared using VARTM procedures relevant to US Navy, subjected to static and cyclic loading. Coupled effects of moisture and cold temperature on tension, compression, shear, fracture toughness with mixed mode conditions, and fatigue loading will be targeted.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 17, 2020
- Source ID
- N000142012601
Entities
People
- Dayakar Penumadu
Organizations
- Office of Naval Research
- United States Navy
- University of Tennessee