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

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.

published proceedings

  • Composites Part A: Applied Science and Manufacturing

author list (cited authors)

  • Maragoni, L., & Talreja, R.

citation count

  • 7

complete list of authors

  • Maragoni, Lucio||Talreja, Ramesh

publication date

  • February 2019