Uncovering the cause of ratcheting and low-cycle fatigue (1.2 Solid Mechanics)
Abstract
The objective of the project is to advance the fundamental understanding of the Low Cycle Fatigue (LCF) under multiaxial loadings using a novel modeling framework. The key innovation is that the formulation will be expressed in the 3-D strain space and will account for gradual accumulation of both plastic strains and damage. The PI plans to use a new interpretation and a new model for low cycle fatigue behavior based on recent research done by the PI that has uncovered the link between certain macroscopic properties of a given material and the type of plastic axial strains (elongation or contraction) that develop. It is proposed to develop a three-dimensional strain-rate based formulation that will accurately model the plastic behavior and incorporate damage and its evolution under cyclic loadings.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1610159
Entities
People
- Oana Cazacu
Organizations
- Army Contracting Command
- United States Army
- University of Florida