Effect of Ice Impact on Composite Sandwich Structures in Extreme Low Temperature Arctic Conditions
Abstract
The objective of this ONR proposal is to investigate the effect of ice impact on the impact response and damage mechanisms of composite sandwich structures in arctic conditions (at low temperature of -70°C). Specifically, this work explores the impact mechanics of high-velocity impact with low mass ice impactors, as well as low-velocity impact with high mass ice blocks. Furthermore, this proposed research will unravel the complex mechanics of composite sandwich structures with surface ice accumulation. The PI will utilize both experimental techniques and computational tools to achieve the set objectives. This includes the Instron CEAST impact test machine that consists of an environmental chamber capable of testing materials to as low as - 70°C. The Nikon XTH320 X-ray micro-computed tomography system will be used to reveal 3D impact damage morphology and coupled phenomena between arctic condition and ice impact damage. Computational simulations will be performed using commercial finite element analysis software (ABAQUS). Numerical work will provide insights to the relationship between material properties and performance at low temperature icy condition. Understanding material properties and structural performance will subsequently lead to new methods to enhance impact performance of composite sandwich structures in arctic conditions. The findings in this study will form fundamental understanding of composites behavior at extreme low temperature environment and the correlation of low temperature effects and ice impact damage behavior of composite sandwich structures.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 26, 2018
- Source ID
- N000141812546
Entities
People
- Kwek-Tze Tan
Organizations
- Office of Naval Research
- United States Navy
- University of Akron