Constitutive Modeling of Engine Materials.
Abstract
This investigation examines the capability to predict the growth of cracks in critical structural components operating at elevated temperatures where time-dependent behavior occurs. A viscoplastic constitutive model for INCO 718 was developed to determine this behavior in the area of the crack tip. The model constants were obtained from monotonically increasing, cyclic, and sustained loading. Therefore, the model has the capability to account for load history effects as well as material damage accumulation. Theoretical predictions are compared to the experimental results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1984
- Accession Number
- ADA146630
Entities
People
- D. A. Wilson
- K. P. Walker
Organizations
- Pratt & Whitney