Journal Published Online: 23 July 2019
Volume 49, Issue 3

Indentation Creep Response and Rupture Mechanisms in GLARE: Experimental and Statistical Evaluation

CODEN: JTEVAB

Abstract

Fiber metal laminates (FMLs) are structural materials that play a vital role in the aviation sector, in which they are exposed to cyclic long-term loading. This article investigates creep response and rupture mechanisms of glass laminate aluminum reinforced epoxy (GLARE) FMLs based on microindentation creep testing. Specimens were manufactured by compression molding, and experiments were conducted under different test parameters, namely, aluminum surface treatment (in terms of surface roughness), creep chamber temperature, indentation load, and run time. In addition, rupture mechanisms were analyzed using scanning electron microscopy. The individual interaction of control parameters on creep strain and mass loss response was studied using Taguchi method. Among the studied factors, specimen condition and creep chamber temperature predominantly control creep rupture, whereas load and time were less important, as confirmed by statistical predictions using linear regression.

Author Information

Thirukumaran, M.
Center for Composite Materials, Department of Mechanical Engineering, SAME, Kalasalingam Academy of Research and Education, Krishnankoil, India
Winowlin Jappes, J. T.
Center for Composite Materials, Department of Mechanical Engineering, SAME, Kalasalingam Academy of Research and Education, Krishnankoil, India
Siva, I.
Center for Composite Materials, Department of Mechanical Engineering, SAME, Kalasalingam Academy of Research and Education, Krishnankoil, India
Anand Kumar, S.
Department of Mechanical Engineering, Indian Institute of Technology (IIT-J), Jammu, India
Amico, Sandro C.
Department of Materials, Federal University of Rio Grande do Sul, Porto Alegre/RS, Brazil
Pages: 11
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Details
Stock #: JTE20180965
ISSN: 0090-3973
DOI: 10.1520/JTE20180965