THE EFFECT OF RESIDUAL STRESSES ON THE CRITICAL CRACK LENGTH PREDICTED BY THE GRIFFITH THEORY. Paper 13 of GENERAL RESEARCH IN FLIGHT SCIENCES, JANUARY 1959-JANUARY 1960. VOLUME II. MECHANICS OF DEFORMABLE BODIES
Technical Report
·
OSTI ID:4163464
The Griffith theory for unstable crack length is modified to take into account the effect of residual (self-equilibrating) stresses. An expression relating the uniform stress, physical properties of the material, critical crack length, and the equilibrating strain energy is derived for a general residual stress distribution. This expression is used to develop a criterion for spontaneous cracking due to residual stresses alone. A specific numerical example for a parabolic residual stress distribution in a beryllium plate . is carried out in some detail. (auth)
- Research Organization:
- Lockheed Aircraft Corp. Missiles and Space Div., Sunnyvale, Calif.
- NSA Number:
- NSA-14-019549
- OSTI ID:
- 4163464
- Report Number(s):
- LMSD-288139(Vol.II)(Paper 13)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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