PSI - Issue 17

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 ScienceDirect

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 17 (2019) 37–43

ICSI 2019 The 3rd International Conference on Structural Integrity Hygrothermal Stresses Analysis of Thick Composite Plates Using High Order Theory Under a Fick Concentration Distribution ICSI 2019 The 3rd International Conference on Structural Integrity Hygrothermal Str sses Analysis of Thick Comp site Plates Using High Order Theory Under a Fick Concentration Distribution B.Boukert 1 ,A.Benkhedda 1 ,E.B Adda 2 ,M.Khodjet-Kesba 1 1 Laboratoire des Sciences Aéronautiques, Institut d’Aéronautique et des études spatiales, Université Blida 1, B.P 270 route de Soumaa, Algerie 2 Laboratoire de Matériaux et Hydrologie, Université de Sidi Bel Abbès,Algerie B.Boukert 1 ,A.Benkhedda 1 ,E.B Adda 2 ,M.Khodjet-Kesba 1 1 Laboratoire des Sciences Aéronautiques, Institut d’Aéronautique et des études spatiales, Université Blida 1, B.P 270 route de Soumaa, Algerie 2 Laboratoire de Matériaux et Hydrologie, Université de Sidi Bel Abbès,Algerie Composite materials are very important and have a wide use in various fields. In aeronautics these materials represent a great potential due to their rigidity and lightness. Aeronautical structures work in variable environmental conditions because of the change in altitude during a flight. Consequently, the temperature and the humidity vary, and these parameters generate internal stresses which influence the behaviour of the material. So, the determination of hygrothermal stresses is very important. This study investigates the behaviour of thick composite laminates using a high order method through hydrothermal stress calculation. Composite laminate working in a symmetric hygrothermal environment, temperature and humidity are used and taken into account for stress calculation. The moisture distribution is calculated along the thickness of the laminate using the Fick equation. Different numerical simulations are carried out using different values of temperature and humidity rate to see their influence. Other simulations were made by varying the distribution of temperature along the thickness of the laminate; the plate size is also taken into account in the simulations (a/b: ratio of length to width, a/h: ratio length to thickness). Composite materials are very important and have a wide use in various fields. In aeronautics these materials represent a great potential due to their rigidity and lightness. Aeronautical structures work in variable environmental conditions because of the change in altitude during a flight. Consequently, the temperature and the humidity vary, and these parameters generate internal stresses which influence the behaviour of the material. So, the determination of hygrothermal stresses is very important. This study investigates the behaviour of thick composite la inates using a high order method through hydrothermal stress calculation. Composite laminate working in a symmetric hygrothermal environment, temperature and humidity are used and taken into account for stress calculation. The moisture distribution is calculated along the thickness of the laminate using the Fick equation. Different numerical simulations are carried out using different values of temperature and humidity rate to see their influence. Other simulations were made by varying the distribution of temperature along the thickness of the laminate; the plate size is also taken into account in the simulations (a/b: ratio of length to width, a/h: ratio length to thickness). Abstract Abstract

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. P er-review under responsibility of the ICSI 2019 organizers. Keywords: Thick plate, High Order, Hygrothermal,Fick. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. * Corresponding author. Tel.: +213 552 326 153. E-mail address: bilanosky@hotmail.fr Keywords: Thick plate, High Order, Hygrothermal,Fick. * Corresponding author. Tel.: +213 552 326 153. E-mail address: bilanosky@hotmail.fr

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.006