Abstract—This paper deals with the development of mathematical models to study the failure loads of fiber glass reinforced woven epoxy composite plates with two parallel holes subjected to traction forces by two rigid pins. To understand the effect of joint geometry on the failure loads the geometrical parameters like the edge distance to the hole diameter (E/D), the distance between center of two holes-to-hole diameter (K/D), the distance from the upper or the lower edge of the specimen to the centre of the hole-to-hole diameter (M/D) were varied. Mathematical models have been developed for wet and dry specimens to determine the failure loads of different geometry plates. Wet specimens are specimens immersed in seawater for 3 months. The unimmersed specimens are called dry specimens. Here Full Cubic models have proved to be very efficient. A comparison of the results from mathematical models with the experimental results from existing literature shows high values of correlation co-efficient, Root Mean Square Error and Maximum Absolute Error. For estimation of the failure loads within the range of E/D, K/D and M/D considered for the study, the mathematical models developed are found to be efficient.

Index Terms—Composites, Failure load, Pin loading

Cite: K Sridevi, "Development of Mathematical Models for Determination of Failure Loads of Glass Epoxy Composite Plates With Two Parallel Holes," International Journal of Mechanical Engineering and Robotics Research, Vol. 3, No. 3, pp. 700-705, July 2014.