Model Development for Estimation of Failure Loads: A Case Study of Composite Plates with Single Pin-Loaded Hole

This paper deals with the study of failure loads of glass vinylester composite plates with a circular hole subjected to a traction force by a rigid pin. These are investigated for two variables, the ratio of distance from the free edge of the plate (E) to the diameter of the hole (D) and the ratio of width of the plate (W) to the diameter of the hole (D). The work consists of a numerical study of different specimens using finite element analysis package ANSYS. Also, a mathematical model has been developed to determine the failure loads of different geometry plates. The results obtained from the numerical study and the mathematical models are compared with experimental results from the existing literature and the correlations are observed for both. A comparison of the experimental results with the numerical model shows that the numerical model gives results with correlation co-efficient 0.96. A comparison of the experimental results with the mathematical model shows that the mathematical model gives results with correlation co-efficient 0.99. For estimation of the failure loads within the range of E/D and W/D considered for the study, the mathematical model developed, i.e., Full Cubic Model proves to be more efficient with the observed values of correlation co-efficient, Root Mean Square Error and Maximum Absolute Error.