Out-of-autoclave manufacturing of GLARE panels using resistance heating

Journal article (2017)

Authors

B. Muller Structural Integrity & Composites - Aerospace Engineering
G. Palardy Structural Integrity & Composites - Aerospace Engineering
S. Teixeira De Freitas Structural Integrity & Composites - Aerospace Engineering
J. Sinke Structural Integrity & Composites - Aerospace Engineering
Research Group
Structural Integrity & Composites (Aerospace Engineering) (TU Delft)
Copyright: © 2017 B. Muller, G. Palardy, S. Teixeira De Freitas, J. Sinke
DOI: https://doi.org/10.1177/0021998317727592
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Published Date

01-08-2017

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Structural Integrity & Composites

Abstract

Autoclave manufacturing of fibre metal laminates, such as GLARE, is an expensive process.Therefore, there is an increasing interest to find cost effective out-of-autoclave manufacturing processes without diminishing the laminate quality. The aim of this study is to evaluate the quality of fibre metal laminate panels adhesively bonded and cured using resistance heating. Three manufacturing processes are compared for different layups with an embedded steel mesh at the mid-plane:autoclave curing, resistance bonding of two (autoclave-cured) panels, and complete out-of-autoclave resistance curing of panels. Interlaminar shear strength tests and optical microscopy analysis showed that resistance bonding is a promising technique, leading to results comparable to autoclave curing.Resistance curing led to an interlaminar shear strength decrease of 30-60%. A study of the correlation between degree of cure and distance from the mesh revealed the potential of resistance bonding to be used for flexible embedded mesh geometries and on-site repairs.

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