QUANTIFICATION OF THE EFFECTS OF IRRADIATION ON THE DYNAMIC COMPRESSIVE PROPERTIES AND FRACTURE TOUGHNESS OF NAVAL MATERIALS

Author

Keevan Winters, University of Rhode IslandFollow

Date of Award

2025

Degree Type

Thesis

Degree Name

Master of Science in Mechanical Engineering and Applied Mechanics

Department

Mechanical, Industrial and Systems Engineering

First Advisor

Carl-Ernst Rousseau

Second Advisor

Arun Shukla

Abstract

The investigation of materials used in naval environments, especially those exposed to radiation, is crucial for ensuring the structural integrity and longevity of naval vessels. This study explores the mechanical properties of high-strength steel (HY-80), two types of epoxy-based syntactic foam (Pink and White), and polyurea, provided by General Dynamics Electric Boat. These materials were tested in both virgin and irradiated states under dynamic and quasi-static loading conditions using a Split-Hopkinson Pressure Bar (SHPB) and an INSTRON 3366 for fracture testing. The study particularly focuses on changes in strain energy density and fracture toughness as indicators of material behavior in response to irradiation. Results demonstrate notable differences in energy absorption and fracture toughness between virgin and irradiated states, providing essential insights into the material’s durability and performance under operational conditions.

Recommended Citation

Winters, Keevan, "QUANTIFICATION OF THE EFFECTS OF IRRADIATION ON THE DYNAMIC COMPRESSIVE PROPERTIES AND FRACTURE TOUGHNESS OF NAVAL MATERIALS" (2025). Open Access Master's Theses. Paper 2587.
https://digitalcommons.uri.edu/theses/2587