The quadratic isoparametric crack-tip elements proposed by R. E. Abdi and G. Valentin (Computers and Structures 33, 241}248) are reconsidered and a simpler method for calculating the optimal position of the side nodes proposed. Quadratic isoparametric transition elements for an r !1 (0( (1) strain s
Evaluation of stress intensity factors for a crack normal to bimaterial interface using isoparametric finite elements
β Scribed by Won-Kyun Lim; Chang-Soo Lee
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 326 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0013-7944
No coin nor oath required. For personal study only.
β¦ Synopsis
A~tract--The isoparametric finite elements are applied to determine the stress intensity factors for a pressurized crack perpendicular to and terminating at the interface of two bonded dissimilar materials. A proper definition for the stress intensity factors of a crack perpendicular to a bimaterial interface is provided. It is based upon near-tip displacement solutions on the crack surface. Numerical testing is carried out with the eight-noded and six-noded crack tip elements. The results obtained are compared with the previous solutions.
π SIMILAR VOLUMES
The stress intensity factors for bimaterial interface cracks are determined by the boundary element method employing the multi-region technique and the double-point concept. A formula relating the stress intensity factors to the crack surface displacement, which is applicable to both the homogeneous
The complex stress intensity factors for edge cracks located at the interface between fiber and matrix of a unidirectional graphite/epoxy laminate model subjected to a transverse tensile strain have been computed using the boundary element method. Such cracks might be generated due to a stress singu
A numerical algorithm is presented for the problem of a crack along the interface of an elastic inclusion embedded in an elastic plane subjected to uniform stress at inΓΏnity. The algorithm is based on a Fredholm integral equation of the second kind and allows for fast and accurate solutions to geome