Directional stability of crack propagation

Conference · Fri Jan 12 00:00:00 EST 1979

OSTI ID:6226711

Streit, R D; Finnie, I

Despite many alternative models, the original Erdogan and Sih (1963) hypothesis that a crack will grow in the direction perpendicular to the maximum circumferential stress sigma/sub theta/ is seen to be adequate for predicting the angle of crack growth under the condition of mixed mode loading. Their predictions, which were based on the singularity terms in the series expansion for the Mode I and Mode II stress fields, can be improved if the second term in the series is also included. Although conceptually simple, their predictions of the crack growth direction fit very closely to the data obtained from many sources.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6226711
• Report Number(s): UCRL-82144; CONF-790820-1
• Resource Relation: Conference: 3. international conference on mechanical behaviour of materials, Cambridge, UK, 20 Aug 1979
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CRACKS
REVIEWS
MATHEMATICAL MODELS
STABILITY
DOCUMENT TYPES
420200* - Engineering- Facilities
Equipment
& Techniques