Glass/epoxy fiber orientation effects on translaminar fracture toughness under Mixed mode(I/II) load using FPB specimen

Abilash Desai; C. M.  Sharanaprabhu; S. K.  Kudari

doi:10.3221/IGF-ESIS.53.33

Glass/epoxy fiber orientation effects on translaminar fracture toughness under Mixed mode(I/II) load using FPB specimen

Authors

Abilash Desai Department of Mechanical Engineering, SDMCET, Dharwad, Karnataka, India
C. M. Sharanaprabhu Department of Mechanical Engineering, PESITM, Shivamogga, Karnataka, India https://orcid.org/0000-0002-4257-039X
S. K. Kudari Department of Mechanical Engineering, CVR College of Engineering, Hyderabad, Telangana, India https://orcid.org/0000-0003-3184-6984

DOI:

https://doi.org/10.3221/IGF-ESIS.53.33

Keywords:

Asymmetric Four Point Bend, Stress Intensity Factor, Mixed mode I/II

Abstract

To study glass/epoxy fiber orientation effects on translaminar fracture toughness under Mixed mode(I/II) load using asymmetric Four Point Bend specimen. Fracture toughness values for different fiber-oriented glass/epoxy laminates under Mixed modes are compared with unidirectional glass/epoxy laminates. Specimens were fabricated using hand layup technique with (0/45)° and (0/90)° fiber oriented glass fiber. The experimental study was conducted for 6 crack positions varying from 0 to 1 with an increment of 0.2 for Four Point Bend specimen. The specimens were tested under universal testing machine to obtain peak loads and further evaluate fracture toughness. The experimental test results show fracture toughness can be increased by orienting the fiber in the laminate. Fracture toughness is highly dominating for (0/90)° fiber-oriented laminates compared to 0° and (0/45)° glass/epoxy laminates.

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Published

19-07-2020

Issue

Vol. 14 No. 53 (2020): July 2020

Section

Fracture

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

Open Access Statement

Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.

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How to Cite

Glass/epoxy fiber orientation effects on translaminar fracture toughness under Mixed mode(I/II) load using FPB specimen. (2020). Frattura Ed Integrità Strutturale, 14(53), 426-433. https://doi.org/10.3221/IGF-ESIS.53.33