SYMPOSIA PAPER Published: 01 January 2000
STP13404S

Fatigue Crack Propagation and Load Interaction Effects in a Titanium Alloy

Source

An experimental investigation of load interaction effects in Ti-6Al-2Sn-4Zn-2Mo is presented. Simple variable amplitude loading spectra were applied to test samples, and the crack propagation stress intensity factor, KPR, was subsequently measured. The data were condensed to two equations (“master curves”) that describe the influence of an unloading cycle after constant amplitude loading and a single overload cycle, respectively. The results suggest that load interaction effects are caused by residual compressive stresses ahead of the crack front, whereas the influence of crack closure is minor.

Author Information

Lang, M
IABG, Ottobrunn, OH, Germany
Larsen, JM
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, OH
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E08
Pages: 201–213
DOI: 10.1520/STP13404S
ISBN-EB: 978-0-8031-5418-6
ISBN-13: 978-0-8031-2617-6