TY - GEN
T1 - Kinetic of fiber ruptures in a unidirectional composite with a viscoelastic matrix
AU - Kotelnikova-Weiler, N.
AU - Caron, J. F.
AU - Baverel, O.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Structural applications of fiber reinforced polymers are strongly dependent on long-term durability studies. Subject to sustained loading, the material undergoes several phenomena reducing its mechanical performances and potentially leading to its failure. To understand the creep rupture mechanisms and identify relevant mechanical parameters that will need to be adjusted during the composition of the material, modeling at the fibers scale seems adequate. In this article a shear-lag model will be presented. This 2D model integrates a viscoelastic behavior of the matrix and a stochastic distribution of fibers strength. Results showing the main phenomena occurring in the stress redistribution in the composite material will also be presented.
AB - Structural applications of fiber reinforced polymers are strongly dependent on long-term durability studies. Subject to sustained loading, the material undergoes several phenomena reducing its mechanical performances and potentially leading to its failure. To understand the creep rupture mechanisms and identify relevant mechanical parameters that will need to be adjusted during the composition of the material, modeling at the fibers scale seems adequate. In this article a shear-lag model will be presented. This 2D model integrates a viscoelastic behavior of the matrix and a stochastic distribution of fibers strength. Results showing the main phenomena occurring in the stress redistribution in the composite material will also be presented.
KW - Rupture
KW - Shear-lag model
KW - Stress redistribution
KW - Viscoelastic polymer matrix
UR - https://www.scopus.com/pages/publications/84903975711
M3 - Conference contribution
AN - SCOPUS:84903975711
SN - 9788888785332
T3 - ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
BT - ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
PB - European Conference on Composite Materials, ECCM
T2 - 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
Y2 - 24 June 2012 through 28 June 2012
ER -