Development of Fatigue and Crack Propagation Design and Analysis Methodology in a Corrosive Environment for Typical Mechanically-Fastened Joints. Volume 3. Phase II Documentation.
Abstract
A workable corrosion fatigue (CF) analysis methodology has been developed for mechanically-fastened joints. The methodology includes the strain-life approach for predicting time-to-crack-initiation (TTCI) and the deterministic crack growth approach for predicting crack propagation. Guidelines are presented for acquiring the experimental data and for implementing the CF analysis. The CF analysis methodology was evaluated for 7075-T7651 aluminum, three load spectra, two environments (i.e., dry air and 3.5% NaCl), and three different bolt load transfer levels (i.e., 0%, 20%, and 40%). Originator-supplied keywords: Corrosion fatigue; Crack initiation; Crack propagation; Environment (dry air, 3.5% NaCl); Loading (constant amplitude & spectrum); Percent bolt load transfer; Effect loading frequency; Strain controlled tests; Preconditioning; Long term exposure testing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1984
- Accession Number
- ADA160378
Entities
People
- D. E. Gordon
- R. P. Wei
- S. D. Manning
Organizations
- General Dynamics