Accession Number:

ADA326704

Title:

AASERT-Structural Integrity of Aging of Aerospace Structures and Repairs.

Descriptive Note:

Final rept. 1 Aug 95-31 Jul 96,

Corporate Author:

GEORGIA INST OF TECH ATLANTA COMPUTATIONAL MECHANICS CENTER

Personal Author(s):

• Atluri, S. N.

Report Date:

1996-12-01

Pagination or Media Count:

169.0

Abstract:

This project emphasizes the development and evaluation of analytic methods for the solution of fracture mechanics problems as related to aircraft structures. Some of these methods are finite and boundary element methods, singularhybrid finite elements, alternating method, and path independent and domain independent integrals. When these methods are applied to various cases of aircraft structural problems, predictions of crack growth and fatigue life can be made. The final report describes these analytical methods as applied to various cases of aircraft structural problems, including the evaluation of composite patch repairs to existing cracks.

Descriptors:

• *FINITE ELEMENT ANALYSIS
• *FRACTURE(MECHANICS)
• FATIGUE LIFE
• AIRCRAFT MAINTENANCE
• CRACKING(FRACTURING)
• REPAIR
• BOUNDARY VALUE PROBLEMS
• HYBRID SYSTEMS
• COMPOSITE AIRCRAFT
• STRUCTURAL INTEGRITY

Subject Categories:

• Aircraft
• Numerical Mathematics
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE