PSI - Issue 17

Available online at www.sciencedirect.com Structural Int grity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 17 (2019) 666–673

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. Facing the stringent requirements for fuel economy in automotive industry, composite materials are seen to be utilized for structural lightweighting. This paper focuses on the fatigue test development and fatigue behavior of a biaxial [0/90] carbon/epoxy non-crimp fabric composites for automotive applications. A new fatigue test specimen was successfully developed for fatigue testing under fully reversed loading, i.e. stress ratio R=-1, at room temperature and 130 ℃ . The developed test specimen prevents buckling during testing without use of an anti-buckling fixture. 3D Digital image correlation strain mapping also revealed a uniform strain distribution on the surface of this specimen geometry. Fatigue test results indicate that the fatigue behavior at both room temperature and 130 ℃ is matrix dominated . The fatigue data is a good fit to the Basquin equation = (2 ) . © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. Facing the stringent requirements f r fuel economy in automotive industry, composite materials are seen to be utilized for stru tural lightweighting. This p per focus s on the fatigue test development and fatigue behavior of a biaxial [0/90] carbon/epoxy non-crimp fabric composites for automotive applications. A new fatigue test specimen was successfully dev loped for fatigue testing under fully reversed loading, i. . stress ratio R=-1, at room temperature and 130 ℃ . The developed test specimen prevents buckling uring testing without use of an anti-buckling fixture. 3D Digital image correlation strain mapping als revealed a uniform strain distribution on the surface of this specimen geometry. Fatigue test results indicate that the fatigue behavior at both room temperature and 130 ℃ is matrix dominated . The fatigue data is a good fit to the Basquin equation = (2 ) . © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. ICSI 2019 The 3rd International Conference on Structural Integrity Fatigue behaviour of carbon/epoxy Non-Crimp Fabric composites for automotive applications Trevor Sabiston a,b , Bin Li a,b , Jidong Kang a *, Jie Liang a , Carlos Engler-Pinto c a CanmetMATERIALS, Natural Resources Canada, 183 Longwood Road South, Hamilton, Ontario, L8P 0A5, Canada b Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, L8S 4L7, Canada c Research and Inovation Centre, Ford Motor Company, 2101 Village Road, Dearborn, Michigan, 48124, USA ICSI 2019 The 3rd International Conference on Structural Integrity Fatigue behaviour of carbon/epoxy Non-Crimp Fabric composites for automotive applications Trevor Sabiston a,b , Bin Li a,b , Jidong Kang a *, Jie Liang a , Carlos Engler-Pinto c a CanmetMATERIALS, Natural Resources Canada, 183 Longwood Road South, Hamilton, Ontario, L8P 0A5, Canad b Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, L8S 4L7, Canada c Research and Inovation Centre, Ford Motor Company, 2101 Village Road, Dearborn, Michigan, 48124, USA Abstract Abstract

Keywords: Non-Crimp Fabric, Fatigue, Fully reversed loading Keywords: Non-Crimp Fabric, Fatigue, Fully reversed loading

1. Introduction 1. Introduction

Carbon fibre reinforced polymer composite materials are among the engineering materials with the highest stiffness to weight and strength to weight ratios. Their use in the automotive industry has been limited due to the high manufacturing cost associated with traditional lay ups and curing processes of unidirectional composites. Non-Crimp Fabric (NCF) composites offer the strength and stiffness advantages of unidirectional composites, however are much Carbon fibre reinforced polymer composite materials are among the engineering materials with the highest stiffness to weight and strength to weight ratios. Their use in the automotive industry has been limited due to the high manufacturing cost associated with traditional lay ups and curing processes of unidirectional composites. Non-Crimp Fabric (NCF) composites offer the strength and stiffness advantages of unidirectional composites, however are much

* Corresponding author. Tel.: +1-905-645-0820. E-mail address: jidong.kang@canada.ca * Correspon ing auth r. Tel.: +1-905-645-0820. E-mail address: jidong.kang@canada.ca

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.089