A fundamental numerical study of Weibull Modulus estimation using single hybrid composite test

Jalalvand, M., Sheibanian, F. and Hosseini-Toudeshky, H. (2023) A fundamental numerical study of Weibull Modulus estimation using single hybrid composite test. 23rd International Conference on Composite Materials, ICCM 2023, , Belfast, United Kingdom. 30 Jul - 04 Aug 2023.

Abstract

In this paper, the effects of Weibull Modulus on the response of hybrid composites are studied numerically to find a method to back calculate the Weibull Modulus of the numerical model. This is to find a new method to estimate the Weibull Modulus of single carbon fibre reinforced composites more easily. Instead of using several samples at different sizes, one sample with multiple fracture is used. Using thin-plies, it is possible to achieve multiple fracture of carbon layer, embedded in between glass layers in a glass/carbon hybrid. This typically leads to a tri-linear pseudo-ductile stress-strain curve whereas the middle part of the stress-strain curve has a small positive slope. Different Weibull Moduli are used to build different models. The numerical results show that higher values of Weibull Modulus results in lower slope values. Different Weibull random distributions are used, and it is observed that independent of the details of the distribution, the stress-strain curves are similar showing that it is possible to back calculate the Weibull Modulus from the slope of the second-part of the stress-strain curve.

This record has no associated files available for download.

Contributors

Author: M. Jalalvand

Download statistics