Accession Number:

ADA089024

Title:

A Design Study in Crack Patching,

Descriptive Note:

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

• Jones,R.
• Callinan,R. J.

Report Date:

1979-07-01

Pagination or Media Count:

25.0

Abstract:

A numerical investigation into the behaviour of cracked sheets which are patched with an overlay of composite material, is presented. This study gives guidelines as to the optimum location, size, and shape of patches. The main considerations are reduction in the stress intensity factors at the crack tip, the maximum fibre stress in the patch and the maximum shear stress in the adhesive bond between patch and sheet. Author

Descriptors:

• *COMPOSITE MATERIALS
• *CRACKS
• *REPAIR
• *FEASIBILITY STUDIES
• *ADHESIVE BONDING
• STRESSES
• FIBERS
• OPTIMIZATION
• INTENSITY
• BONDED JOINTS
• SHEAR STRESSES
• SHEETS
• NUMERICAL METHODS AND PROCEDURES
• AUSTRALIA

Subject Categories:

• Adhesives, Seals and Binders
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE