Accession Number:

AD0880290

Title:

Fatigue Strength of Lugs Containing Liners. Volume 2. Computer Program Used for Analyses

Descriptive Note:

Final rept.

Corporate Author:

KAMAN AEROSPACE CORP BLOOMFIELD CT

Personal Author(s):

• Mayerjak, Robert J.

Report Date:

1970-11-01

Pagination or Media Count:

90.0

Abstract:

This report presents the results of an investigation of the fatigue strength of structural lugs. The program included both experimental and analytical phases which were used in a complementary fashion to formulate design charts for fatigue-loaded steel and titanium lugs containing interference fit liners. These lugs are representative of design practice in highly loaded aircraft applications, particularly that found in helicopter blade attaching systems. A primary element in the analytical study was a two-dimensional structural analysis of lug configurations, which was done by finite-element methods using a computer program.

Descriptors:

• *FASTENINGS
• *HELICOPTERS
• *MOUNTING BRACKETS
• COMPUTER PROGRAMMING
• COMPUTER PROGRAMS
• CONTROL SEQUENCES
• FATIGUE(MECHANICS)
• HELICOPTER ROTORS
• PINS
• STRUCTURAL PROPERTIES

Subject Categories:

• Helicopters
• Couplers, Fasteners and Joints
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE