LAY–UP OPTIMIZATION OF COMPOSITE LAMINATED PLATE SUBJECTED TO BENDING LOAD INTHE PRESENCE OF DELAMINATION

Venkate Gowda C, Rajanna, N. G. S. Udupa

Abstract: Composite materials find applications in various fields sinceits properties can be tailor made for the particular applications. In this work,the number of symmetric layers of carbon glass laminate is optimized such that it can with stand more load without deformation or failure. The specimens are subjected to 3-point bending load under computerized universal testing machine. The specimens are prepared using VARTM method so that defects can be reduced. The optimized stacking sequence is obtained by doing finite element analysis using ANSYS. Later specimens are prepared for those optimized layer orientations. Experiments are conducted and results are analyzed and concluded. In this case, for the optimized layer sequence obtained, the specimens are prepared for with and without delamination defect. The delamination is introduced in the specimen centre. The load carrying capacity is analyzed when defect such as delamination are present in specimens.

Keywords: Composites; Delamination; 3-Point Bending, VARTM Process

DOI: https://doi.org/10.15623/ijret.2016.0525003