Studies on Delaminating Effects on Stress Development in Composite Structures

In the coming days, most of the structures will be made with composite materials,. But the call of the day is optimum use of material to its fullest capability in terms of strength and life. In this sense, the support structure of any engineering products needs to satisfy the optimum use of material. One of the method is to carry out is through finite element analysis. In this particular study, the delamination effect on composite structures is analyzed with two models. Initially a composite plate subjected to uniformly distributed uniaxial load and later extended to intersecting cylindrical members. In the first model delamination is created by missing layer. The problem is analyzed for quarter domain due to symmetry. Later, discontinuity between the composite layers is created. The results are presented for both the problems. In both the cases increase in stresses is observed due to delamination which will create major problems during practical applications. This paper gives small insight of the problems created by delamination in the composites structures.