ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Hot-Wet Environmental Effects on In-Plane Shear Strength of IMA/M21E Aircraft Grade CFRP Composites

Shetty, K and Manjunatha, CM and Gururaja, S and Srihari, S (2022) Hot-Wet Environmental Effects on In-Plane Shear Strength of IMA/M21E Aircraft Grade CFRP Composites. In: 3rd Structural Integrity Conference and Exhibition, SICE 2020, 11-13 December 2020, IIT Bombay, pp. 285-292.

Full text not available from this repository. (Request a copy)
Official URL: https://doi.org/10.1007/978-981-16-8724-2_26


Effect of hot-wet environments by moisture absorption on properties of CFRP structures is a valuable factor to designers and application engineers in assessing the structural integrity of the parts. In this present study, using standard autoclave process QI (Quasi-Isotropic) composite laminates were manufactured from HexPly® M21E/34/UD/194/IMA prepreg. In-plane shear (IPS) strength test specimens were prepared from these laminates. Conditioning of these specimens were done at three hot-wet environmental conditions: 45 °C/85 relative humidity (RH), 75 °C/85 RH, and 55 °C/100 RH, until achieving complete moisture absorption saturation in each case. IPS tests were carried out as per ASTM test standard ASTM D3518 specifications using a 100 kN servo-hydraulic test machine. The in-plane shear strength properties were determined for both conditioned and un-conditioned laminate specimens. Similar hot-wet conditions were maintained while conducting the IPS tests. From tests results it is seen that moisture absorption rate increases progressively and attains saturation at about 1.2 wt. under these three hot-wet conditions. Increase in temperature and RH has shown increase in moisture absorption. IPS strength was reduced by about 8 due to presence of moisture. Tensile strengths were also measured while carrying out IPS tests. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Item Type: Conference Paper
Publication: Lecture Notes in Mechanical Engineering
Publisher: Springer Science and Business Media Deutschland GmbH
Additional Information: The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 23 May 2022 06:05
Last Modified: 23 May 2022 06:05
URI: https://eprints.iisc.ac.in/id/eprint/71876

Actions (login required)

View Item View Item