Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures

Authors

  • Soufiane Belhouideg Department of Physics, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal, Morocco
  • Manuel Lagache Department of Polytech Annecy Chambery, Univ. Savoie, SYMME, F-74000 Annecy, France

DOI:

https://doi.org/10.21467/jmm.5.1.1-7

Abstract

Fiber reinforced composites are increasingly used in several fields such as aeronautics and civil engineering due to their increased strength, durability, corrosion resistance, resistance to fatigue and damage tolerance characteristics. The embedding of sensor networks into such composite structures can be achieved. In the present study, glass fiber reinforced Epoxy composite with integrated strain gage was analysed. Firstly, the mechanical behaviour of this material with embedded strain gage is investigated. The as-prepared samples have been tested under tensile and flexural loading in order to study the effects of the strain gage embedding on the structural stiffness and strength of the composite. It was found that the tensile stiffness decreases by 5.8% and the tensile strength decrease by 1.5% when the strain gage embedded in the material. On the other hand, the flexural strength and stiffness is increased, respectively, by 1.5% and 5.5% with an embedded strain gage. The experiments showed that embedded strain gage is functional and demonstrated the successful integration of sensor networks into composite parts. The obtained results confirm that integrated strain gage can be used for the Structural Health Monitoring (SHM) of glass fiber reinforced Epoxy composite.

Keywords:

Mechanical behaviour, Smart Composite, Structural Health Monitoring, Strain gage

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Published

2017-11-06

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Section

Research Article

How to Cite

[1]
S. Belhouideg and M. Lagache, “Effect of Embedded Strain Gage on the Mechanical Behavior of Composite Structures”, J. Mod. Mater., vol. 5, no. 1, pp. 1–7, Nov. 2017.