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An estimation of local stress intensity factors for semi-elliptical surface cracks

โœ Scribed by T. Fett

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
501 KB
Volume
34
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

A simple method is described which allows the estimation of local stress intensity factors of two-dimensional cracks by use of the weight function basic relation. The method is applied especially to semi-elliptical surface cracks. Two examples are considered. The half-penny shaped crack under bending load is treated based on the tension reference case and the results are compared with literature data. In a second example, the semi-elliptical crack is loaded with a quadratic stress distribution. The result allows an extension of the Newman-Raju formulae which provide stress intensity factors for u _ x0 and u ... x'.

๐Ÿ“œ SIMILAR VOLUMES

Stress-intensity factors for semi-ellipt
Stress-intensity factors for semi-elliptical surface cracks under tension or bending
โœ Andrea Carpinteri ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 528 KB

The problem of a beam containing a semi-elliptical surface crack and subjected to tension or bending loading is investigated. The stress-intensity factor along the crack front can be calculated assuming a model with finite strips arranged in series and parallel. Several cases are analysed varying th

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โœ C. Mattheck; D. Munz; H. Stamm ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 567 KB

The stress intensity factor at the deepest point of a semi-elliptical surface crack is calculated for stress gradients in direction of depth. The method is based on weight functions. The crack opening displacement for the reference problem is calculated with a method proposed by Petroski and Achenba

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โœ H Greener; U Strathmeier ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 379 KB

intensity factors were calculated at the deepest point and at the surface points of longitudinal semi-elliptical surface cracks in a thermally shocked pipe. The method of calculation is based on weight functions following a proposal by Mattheck, Munz and Stamm, Engng. Fract. Mech. 18, 633-641 (1983)