Buckling analysis in a woven steel fiber reinforced thermoplastic laminated plate with strip delamination

WOS: 000182195300004The effects of the strip delamination width on the buckling loads of the simply supported woven steel reinforced thermoplastic (LDFE, F.2.12) laminated composite plates have been investigated. The mechanical properties of the manufactured composite layers have been measured. Three-dimensional finite elements models of the square laminated plates have been established. Each of these models possesses four layers and different delamination width between second and third layers. The orientation angle of the fibers is chosen as 0, 15degrees, 30degrees and 45degrees. Firstly the harmony between theoretical and finite element solutions results of the plate without delamination has been shown. Then, the buckling loads have been determined for each of the models having different delamination width. The results show that important decreases in the buckling loads occur after a certain value of the delamination width. The changing ratios of the results of the symmetric or antisymmetric cases are approximately the same for each angle. For the high values of orientation angles, the values and changing ratios of the buckling loads are also higher than those of the low angles