Failure of Composite Plates Subjected to Shock Loading
Abstract
Underwater explosions and their associated devastating effects are not new to the U.S. Navy. Accurately modeling and scaling them for research and development, however, are areas in need of further study as large explosions are not easily created, accurately repeated, or financially prudent. Smaller models that produce underwater shocks on a reduced scale can mimic the effects of a larger explosive device. This project employed a safe and easily replicated test using liquid nitrogen within a sealed pressure vessel to create an underwater explosion. This test was performed multiple times using the same pressure vessel to produce a baseline explosion. Once a standard was created, the experiment was repeated in close vicinity with strain gages attached to carbon composite plates. Carbon composite plates of varying thicknesses, such as an orthotropic 0/90-degree weave, a unidirectional 0-degree, a cross-ply 0/90/0-degree, and a cross-ply 0/90/90/0-degree laminated plate, were examined. The explosion experiments on the carbon composite material were taken to failure to understand the dynamic response of those composite plates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2020
- Accession Number
- AD1126839
Entities
People
- Natalie E. Crow
Organizations
- Naval Postgraduate School