Accession Number:

ADA089118

Title:

On Irwin's and Achenbach's Expressions for the Energy Release Rate.

Descriptive Note:

Interim rept.,

Corporate Author:

CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF MATHEMATICS

Personal Author(s):

• Yatomi,Chikayoshi

Report Date:

1979-12-01

Pagination or Media Count:

12.0

Abstract:

Using a constitutive equation and anti-plane shear field introduced by Knowles, we show that the expressions of Irwin and Achenback for the energy release rate are not generally valid for non-linear elastic materials. Author

Descriptors:

• *CRACKING(FRACTURING)
• *ELASTIC PROPERTIES
• *POTENTIAL ENERGY
• *FLEXIBLE MATERIALS
• SHEAR PROPERTIES
• STRESS STRAIN RELATIONS
• TIME DEPENDENCE
• NONLINEAR SYSTEMS
• BOUNDARY VALUE PROBLEMS
• KINETIC ENERGY
• RELEASE
• INTEGRAL EQUATIONS
• ASYMPTOTIC NORMALITY
• LAPLACE TRANSFORMATION

Subject Categories:

• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE