Numerical Analysis Evaluation of Crack Arrester for Brittle Fracture of Structures

The petroleum which carries out important role presently as an energy source with the sea is transported with the tanker mainly. But loss of flow accident of the petroleum due to the accident which from around 1960 accompanies the mass transit of the petroleum it to reach the point where it occurs as a time, the marine pollution problem due to that has expanded quickly. There is a crack arrester as one of preventive measures of the brittle fracture in the hull which can become cause of such accident. When the crack arrester by providing the open slot is made to mix it is not avoided that strength of the component decreases, but crack development is controlled, it is thought that it is effective. You verified there is some kind of influence in the component by providing the stiffener where Young's modulus differs to the deep water of the above-mentioned crack arrester in this research making use of the portable finite element method which establishes as a basis on Delaunay automatic element division.