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Fracture Toughness of Symmetric and Asymmetric Layup GFRP Laminates by Experimental and Numerical Methods

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Trends in Materials Engineering

Part of the book series: Lecture Notes on Multidisciplinary Industrial Engineering ((LNMUINEN))

Abstract

FRPs are widely used composite materials, and they offer great advantages of reduction in weight compared to conventional materials. Delamination is seen as one of the biggest causes of its failure. The work herein examines fracture behavior pattern of GFRP laminates, made by reinforcing E-glass plain weave (PW) fiber and epoxy as matrix material. The Plain weaved fiber finds large acceptability in composite industries due to their flexibility, better handling capacity during manufacturing, and better damage tolerance. The laminate was configured in symmetric and asymmetric conditions and made by hand layup assisted by vacuum bagging technique. The laminates configured are quasi-isotropic with zero bending-extension stiffness coupling matrix. Mode-I test was conducted following ASTM D5528 standard in a computerized UTM in displacement control mode. The numerical analysis was done using cohesive zone modeling. The results showed better fracture toughness for asymmetric layup which was due to extensive fiber bridging in these kinds of layups. The numerical results were able to mimic the delamination behavior, and close similarity is obtained in force–displacement curve.

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Abbreviations

CF:

Carbon fiber

CNT:

Carbon nanotube

CSCNT:

Cup-stacked carbon nanotube

DWCNT:

Double-wall carbon nanotube

EP:

Epoxy

HNT:

Halloysite nanotube

MWCNT:

Multiwall carbon nanotube

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Authors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, Jharkhand, India

    Ruchir Shrivastava & K. K. Singh

Authors
  1. Ruchir Shrivastava
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  2. K. K. Singh
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Corresponding author

Correspondence to Ruchir Shrivastava .

Editor information

Editors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India

    Inderdeep Singh

  2. Netaji Subhas University of Technology, New Delhi, Delhi, India

    Pramendra Kumar Bajpai

  3. Mechanical and Automation Engineering, Delhi Technical Campus, Guru Gobind Singh Indraprastha University, Greater Noida, Uttar Pradesh, India

    Kuldeep Panwar

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Shrivastava, R., Singh, K.K. (2019). Fracture Toughness of Symmetric and Asymmetric Layup GFRP Laminates by Experimental and Numerical Methods. In: Singh, I., Bajpai, P., Panwar, K. (eds) Trends in Materials Engineering. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-9016-6_2

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