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Determination of the length of a short crack at a v-notch from a full field measurement

โœ Scribed by D. Leguillon

Book ID
104018685
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
786 KB
Volume
48
Category
Article
ISSN
0020-7683

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โœฆ Synopsis

Determination of the length of a short crack at the root of a v-notch, from a full kinematic field measurement, is performed using a direct method. It is based on a matched asymptotic expansions procedure together with the theory of singularities. The first corrective term of the outer expansion can be straightforwardly expressed as a function of the crack length. Its extraction is achieved through the calculation of the associated generalized stress intensity factors for elastic homogeneous materials as well as bimaterials. Numerical simulations are carried out on a finite element solution disturbed by a random noise. In addition, the method used to compute the generalized stress intensity factors proved accurate and robust.

๐Ÿ“œ SIMILAR VOLUMES

Determining KI of a V-notch from the exi
Determining KI of a V-notch from the existing results of a linear crack
โœ Zhao-Bangji; Lang-Fuyuan; Wei-Qingtong ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 415 KB

## Abetmet-Based on theoretical analysis and a hypothesis, a new method is given for determining K, of a V-notched plate under various boundary conditions. By means of this method, the stress intensity factor of a V-notch can be easily obtained from the existing results of a linear crack. Examples