Fatigue fracture of thin plates under tensile and transverse shear stresses

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:597705

Viz, M J; Zehnder, A T; Bamford, J D ^[1]

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1. Cornell Univ., Ithaca, NY (United States). Dept. of Theoretical and Applied Mechanics

Crack growth in thin sheets loaded under tension and transverse shear is studied experimentally and the mechanics of such problems are reviewed. A small scale yielding approach is adopted that describes the crack tip fields using a combination if Kirchhoff plate theory and plane stress elasticity. Techniques for calculating the relevant stress intensity factors are presented and validated with results from six test cases. Fatigue crack growth rates are measured using a double-edge notch test specimen configuration loaded in tension and torsion. A geometrically nonlinear finite element computation is used to determine the stress intensity factors as functions of axial load, torque, and crack length.

• OSTI ID: 597705
• Report Number(s): CONF-9406335-; TRN: IM9812%%143
• Resource Relation: Conference: 26. national symposium on fracture mechanics, Idaho Falls, ID (United States), 28-30 Jun 1994; Other Information: PBD: 1995; Related Information: Is Part Of Fracture mechanics: 26. volume; Reuter, W.G. [ed.] [Lockheed Martin Idaho Technologies, Idaho Falls, ID (United States)]; Underwood, J.H. [ed.] [Army Armament Research and Development Center, Watervliet, NY (United States)]; Newman, J.C. Jr. [ed.] [National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center]; PB: 853 p.; ASTM special technical publication 1256
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
CRACK PROPAGATION
FRACTURE MECHANICS
STRESS INTENSITY FACTORS
FATIGUE
CALCULATION METHODS
MECHANICAL TESTS
SHEETS