@inproceedings{01ac9ac285df4f24a3241dc6e2bab531,
title = "Rate-dependent modelling of the meso-mechanics of z-pins bridging mixed mode delaminations",
abstract = "In this paper, a rate dependent model is developed to simulate the bridging performance of z-pins subject to Mode I and Mode II loading. Z-pins are modelled as beams embedded in a Winkler elastic foundation with friction. The latter is described via Ruina's state dependent friction model in order to incorporate the rate effect. The Ruina's model parameters were calibrated against a Mode I and Mode II test carried out at a pullout speed of 5m/s and 1m/s respectively. The calibrated model was then validated against a mode I and mode II test conducted at 12m/s and 1.5m/s respectively. The predicted force versus opening-displacement trend is in excellent agreement with the experimental one. The error of predicted apparent fracture toughness is within 5% of the experimental value.",
keywords = "Delamination, Rate-effect, Z-pinning",
author = "Hussein Hijazi and Hao Cui and Giuliano Allegri and Hallett, {Stephen R.} and Nik Petrinic",
year = "2020",
month = jan,
day = "1",
language = "English",
series = "ECCM 2018 - 18th European Conference on Composite Materials",
publisher = " Applied Mechanics Laboratory",
booktitle = "ECCM 2018 - 18th European Conference on Composite Materials",
note = "18th European Conference on Composite Materials, ECCM 2018 ; Conference date: 24-06-2018 Through 28-06-2018",
}