Mahto, B and Kubher, S and Gururaja, S (2022) Characterization of cure residual strain development and associated structural distortion in carbon fiber polymer matrix composites. In: Journal of Composite Materials .
Full text not available from this repository.Abstract
A comprehensive experimental methodology has been developed to measure the in situ cure residual strain (CRS) generation in carbon fiber reinforced polymer (CFRP) laminates using embedded fiber Bragg grating (FBG) sensors. In order to delineate the effect of anisotropy, heterogeneity, laminate thickness and geometry, in situ CRS is measured in pristine epoxy, uni-directional (UD)-CFRPs, multi-directional (MD)-CFRPs and L-shaped MD-CFRP laminates. In this study, emphasis is laid on quantifying the variation in CRS magnitudes as a function of laminates lay-up sequence and thickness. Calibration of FBG sensors are carried out by following well established procedures. Structural distortion due to CRS is correlated using embedded FBG sensor and measured using the coordinate measurement machine (CMM). The presented results show a uniform CRS development across the thickness in MD-CFRP laminates as compared to L-shaped MD-CFRP laminates.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Composite Materials |
| Publisher: | SAGE Publications Ltd |
| Additional Information: | The copyright for this article belongs to the SAGE Publications Ltd. |
| Keywords: | Curing; Electric sensing devices; Fiber Bragg gratings; Fiber optic sensors; Polymer matrix composites; Process monitoring; Stress relaxation, Carbon fibre reinforced polymer; Coordinate measurement machines; Cure residual strain; Embedded fiber Bragg grating sensors; Fiber Bragg Grating Sensors; Fibre reinforced polymer laminates; L-shaped; Residual strains; Strain development; Structural distortions, Carbon fiber reinforced plastics |
| Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) |
| Date Deposited: | 18 Jul 2022 10:17 |
| Last Modified: | 18 Jul 2022 10:17 |
| URI: | https://eprints.iisc.ac.in/id/eprint/74960 |
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