Location

La Jolla, CA

Start Date

1980 12:00 AM

Description

An analytical and experimental study is conducted to determine criticality of interlaminar disbands by NDE methods. Criticality of such flaws in a shear environment (action of shear near support) is defined in terms of crack propagation and is analyzed by principles and methods of fracture mechanics. Growth of disbands under cyclic loading is also being studied. Fajlure under compressive loading in presence of a disband is defined in terms of buckling and an elastic stability analysis is utilized for assessing criticality. Analytical predictions are compared with experimental results in both cases.

Book Title

Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE

Chapter

7. Non Metallic NDE, Acoustic Microscopy

Pages

219-224

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Nondestructive Evaluation of Flaw Criticality in Graphite-Epoxy Laminates

La Jolla, CA

An analytical and experimental study is conducted to determine criticality of interlaminar disbands by NDE methods. Criticality of such flaws in a shear environment (action of shear near support) is defined in terms of crack propagation and is analyzed by principles and methods of fracture mechanics. Growth of disbands under cyclic loading is also being studied. Fajlure under compressive loading in presence of a disband is defined in terms of buckling and an elastic stability analysis is utilized for assessing criticality. Analytical predictions are compared with experimental results in both cases.