Transverse crack formation in unidirectional plies predicted by means of a percolation concept Academic Article

abstract

• © 2018 Elsevier Ltd Transverse crack formation in epoxy based unidirectional composites is treated by means of a percolation concept. A previously proposed criterion for brittle cavitation in epoxies is used as the criterion for fibre/matrix debonding. Then, neglecting the details of debond linkups, a transverse crack is assumed to form when the intensity of the linkup process crosses a threshold analogous to the percolation threshold. The predicted applied strain to transverse crack formation based on this assumption agrees well with experimental data. A parametric study is conducted to reveal the effects of thermal cooldown temperature, fibre volume fraction and fibre elastic properties on the percolation threshold for transverse crack formation.

authors

• Talreja, Ramesh

author list (cited authors)

• Maragoni, L., & Talreja, R.

citation count

• 5

publication date

• February 2019

publisher

• Elsevier BV  Publisher

published in

• Composites Part A Applied Science and Manufacturing  Journal

keywords

• Brittle Cavitation
• Debonding
• Percolation Threshold
• Transverse Cracking

Digital Object Identifier (DOI)

• 10.1016/j.compositesa.2018.11.025

start page

• 317

end page

• 323

volume

• 117