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Characterization of fatigue delamination growth under mode I and II: Effects of load ratio and load history

Androuin, Guillaume and Michel, Laurent and Maillet, Irène and Gong, Xiao-Jing Characterization of fatigue delamination growth under mode I and II: Effects of load ratio and load history. (2018) Engineering Fracture Mechanics, 203. 172-185. ISSN 0013-7944

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Official URL: https://doi.org/10.1016/j.engfracmech.2018.06.030

Abstract

The study of fatigue delamination growth in composite materials aims to develop a slow-growth approach for composite materials that would provide conservative and reliable results. The present work focuses on the study of the load ratio effect on fatigue crack growth at constant amplitude and on the effect of variable amplitude loading on crack propagation. With this in mind, a Crack Driving Force (CDF) is chosen to attempt to overlap delamination growth curves obtained from different load ratio values for mode I and mode II. It is shown that the CDF collects the effect of the load ratio on the crack growth curves and allows to build a crack growth master curve for mode I and II. Variable amplitude loads are then considered for delamination propagation in mode I. However, variable amplitude loads bring to light a load history effect during fatigue crack growth that the CDF does not take into account.

Item Type:Article
HAL Id:hal-02013968
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Direction Générale pour l'Armement - DGA (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Funders:
DGA - Région Occitanie
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Deposited By: Laurent MICHEL
Deposited On:11 Feb 2019 11:46

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