J-integral analyses of plate and shell structures with through-wall cracks using thick shell elements
✍ Scribed by T. Watanabe; K. Tagata; G. Yagawa; N. Miyazaki
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 701 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0013-7944
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✦ Synopsis
A new evaluation method using thick shell elements is proposed to calculate the distribution of the J-integral values along crack fronts of through-wall cracks in plate and shell structures. Dividing tentatively the thick shell elements into several layers in the thickness direction, integral paths are defined at each layer to obtain the thickness distributions of the J-integral values of through-wall cracks in plate and shell structures. The three-dimensional definition of the J-integral is used to calculate the J-integral value at each layer. The results of several stress intensity factor analyses are presented to show the effectiveness of the present evaluation method. The distribution of the J-integral value along a crack front is also compared between the methods using the thick shell elements and the three-dimensional solid elements.