Accession Number:

ADA326557

Title:

Crack Propagation in Election Beam Welded Ti-6A1-4V Under Spectrum Loading Conditions,

Descriptive Note:

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA

Personal Author(s):

• Neu, C. E.

Report Date:

1980-12-18

Pagination or Media Count:

28.0

Abstract:

Center cracked panels of electron beam welded Ti-6A1-4V were tested under truncated F-14 aircraft wing fatigue spectra in an effort to simulate propagation of fatigue cracks from spike flaws at weld intersect holes. Predictions of fatigue lives of F-14 wing carrythrough sections for various initial defect sizes were made using fracture mechanics methods.

Descriptors:

• *CRACK PROPAGATION
• *TITANIUM ALLOYS
• *ELECTRON BEAM WELDING
• FIGHTER AIRCRAFT
• ALUMINUM ALLOYS
• PREDICTIONS
• PANELS
• FRACTURE(MECHANICS)
• SPECTRA
• FATIGUE(MECHANICS)
• WINGS
• VANADIUM ALLOYS

Subject Categories:

• Attack and Fighter Aircraft
• Properties of Metals and Alloys
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE