In-Situ Damage Detection/Monitoring and Microstructural Evaluation in Structural Materials for Fatigue Critical Defense Applications
Abstract
The Defense University Research Instrumentation Program (DURIP) is designed to improve the capabilities of U.S. Universities to conduct research and to educate scientists and engineers in selected technical areas of importance to national defense. DURIP funding provides for the acquisition of research equipment and instrumentation for this purpose. This proposal is for the purchase of a JENTEK GridStation System with a 39-Channel meandering winding magnetometer (MWM) eddy current sensor array outfitted for fatigue damage detection and monitoring, local microstructural examination, and spatial scanning. The PI, Professor Diana Lados, of Worcester Polytechnic Institute, will use the equipment to augment and enhance research capabilities in the exploration and development of novel approaches and techniques to design, ICME-model, and manufacture highly engineered structural materials, and then monitor their condition during testing/operation. Damage detection and subsequent crack growth monitoring using advanced non-destructive (NDE) techniques are critical at the materials-process development stage by providing a quantitative mechanistic understanding of the microstructural behavior and intrinsic changes in the presence of fatigue cracks. Techniques developed in this study may further be adapted for inspection, early damage detection, and crack monitoring in field operations, on actual structural components. Established knowledge-based microstructure-properties-performance relationships and damage detection and monitoring capabilities are beneficial scientific and technological resources for the U.S. defense industry, while also serving the civilian and commercial transportation sectors. These developments will also be valuable educational tools for training undergraduate and graduate students at Worcester Polytechnic Institute.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510396
Entities
People
- Diana A. Lados
Organizations
- Army Contracting Command
- United States Army
- Worcester Polytechnic Institute