Accession Number:

ADA117342

Title:

Design Methodology for Bonded-Bolted Composite Joints. Volume I. Analysis Derivations and Illustrative Solutions

Descriptive Note:

Final rept. Aug 1979-Jun 1981

Corporate Author:

MCDONNELL DOUGLAS CORP LONG BEACH CA

Personal Author(s):

• Hart-Smith, L. J.

Report Date:

1982-02-01

Pagination or Media Count:

97.0

Abstract:

This report contains recent developments in three aspects of joints in advanced fibrous composite structures 1 nonlinear analysis of adhesively- bonded stepped-lap joints and doublers, 2 multirow mechanically fastened joints in aerospace structures, and 3 nonlinear analysis of combined bonded and bolted joints. The methods developed include nonlinearities needed for metal structures as well as those for composites. The analysis are based on continuum mechanics techniques and have been coded into three Fortran IV digital computer programs A4EI, A4EJ, and A4EK respectively. The report contains explanations of the derivations of the solutions as well as sample worked problems to illustrate both the capabilities of the programs and the behavior characteristics of the real structures.

Descriptors:

• *COMPOSITE STRUCTURES
• *BONDED JOINTS
• *NONLINEAR ANALYSIS
• *BOLTED JOINTS
• COMPUTER PROGRAMS
• LOAD DISTRIBUTION
• FIBERS
• COMPOSITE MATERIALS
• STRUCTURAL ANALYSIS
• DEFLECTION
• FAILURE
• STRENGTH(MECHANICS)
• FORTRAN
• REPAIR
• RESIDUAL STRESS
• AIRFRAMES
• FASTENINGS
• THERMAL STRESSES
• ADHESIVE BONDING

Subject Categories:

• Aircraft
• Laminates and Composite Materials
• Computer Programming and Software
• Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE