PSI - Issue 17

B. Boukert et al. / Procedia Structural Integrity 17 (2019) 37–43 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

43

7

4. Conclusion

In this paper a high-order theory developed by Reddy has been used to evaluate the influence of hygrothermal loading type and environmental parameters on the behavior of a thick composite plate. The plate is under different types of thermal loading. A hygroscopic loading given by Fick equation is also applied. The results shows an important influence of hygrothermal loading on the plate behavior including the transverse shear stress. Due to the activation phenomena caused by temperature, the stress has been dominated by hygroscopis loading.

Reference

[1]. Ambartsumian SA. On the theory of bending plates. Izv Otd Tech Nauk AN SSSR 1958;5:69 – 77. [2]. Soldatos KP, Timarci T. A unified formulation of laminated composite, shear deformable, five-degrees-of-freedom cylindrical shell theories. Compos Struct1993;25:165 – 71. [3]. Reddy, J.N., "A Simple Higher-Order Theory for Laminated Ccomposite Plates", ASME Journal of Applied Mechanics, (1984), 745 – 752. [4]. Reddy, J.N. et Phan, N.D., "Analysis of laminated composite plates using a higher-order shear deformation theory", International Journal for Numerical Methods in Engineering, (1985), 2201 – 2219. [5]. JN Reddy.,"A higher order shear deformation theory of laminated elastic shells", J Engineering sciences, 1985;Vol 23 N°3, 319-330. [6]. Touratier M. An efficient standard plate theory. Int J Eng Sci 1991;29(8):901 – 16. [7]. Karama M, Afaq KS, Mistou S. Mechanical behaviour of laminated composite beam by new multi-layered laminated composite structures model with transverse shear stress continuity. Int J Solids Struct 2003;40:1525 – 46. [8]. Soldatos KP. A transverse shear deformation theory for homogeneous monoclinic plates. Acta Mech 1992;94:195 – 200. [9]. Krishna Murty, A.V, "Higher-order theory for vibrations of thick plates", AIAA Journal, (1977), 1823 – 1824. [10]. Levinson, M., "An accurate simple theory of statics & dynamics of elastic plates",Mechanics Research Communications, (1980), 343 – 350. [11]. Metin Aydogdu. A new shear deformation theory for laminated composite plates. Composite Structures 2009;88:94-101. [12] .A.M. Zenk our, “Analytical solution for bending of cross -ply laminated plates under thermo-mechanical loading ‘’j.compstruct.2003.11.012 [13 ].O.Sayman,”Elastic – Plastic stress analysis of symmetric aluminium metal matrix composite laminated plates under thermal loads varying linearly “,J.compositeesh 2004.02.002; [14 ].O.Sayman,”Elastic– Plastic stress analysis of symmetric aluminium metal matrix composite laminated plates under a parabolically temperature distribution “,composites science and technology 20 01;61-2129:2137. [15 ].O.Sayman,”Elastic–Plastic and residual stresses in symmetric thermoplastic laminated plates under a linear thermal loadng.“,composites science and technology 2002;62-1231:1238. [16 ] J.N.Reddy ,”Mechanics of laminated composite plates and shelles theory and analysis ” ,second edition CRC Press,1997. [17]. Pipes RB, Vinson JR, Chou TW. ‘’On the hygrothermal response of laminated composite systems’’. J Compos Mater 1976;10:129– 48. [18] B.Boukert. Hygrothermomechanical behavior of thick composite plates using high order theory, Structural integrity Procedia ,volume 5,pages 115-122,ISSN: 2452-3216. [19] B.Boukert. Temperature and Humidity Influence Analysis on the Behavior of Thick Composite Plates Using High Order Theory , Structural integrity Procedia ,volume 13,pages 174-180,ISSN: 2452-3216. [20] B.Boukert. Analysis of Transient Hygrothermal Ageing Analysis of Hybrid Composite Materials in Asymmetric Environments , Key Engineering Materials, Vol. 550, pp. 49-56, 2013. [21] Sereir Z, Adda bedia E, Tounsi A. Effect of temperature on the hygrothermal behaviour of unidirectional laminated plates with asymmetrical environmental conditions. Int J Compos Struct. Compos Struct 2006;72:383 – 92. [22] Sereir Z, Adda bedia E, Tounsi A. Effect of the accelerated moisture diffusivity on the hygrothermal behaviour of laminated plate with symmetrical environmental conditions. J Thermal Stresses 2005;28(9): 889 – 910. [23] Basi S, Rogers TG .”Hygrothermoelastic analysis of anisotropic inhomogeneous and laminated plates”. J MechPhys Solids 1991;39(1):1– 22. [24 ] J.N.Reddy ,”Asimple Higher Order Theory for laminated composite plates” ,Journal of applied Mechanics,December 1984,Vol 51/ 745. [25 ] Nelson RB, Lorch DR. “A refined theory for laminated orthotropic plates”. J ApplMech 1974;41(171). [26] J.N.Reddy,” Effects of shear deformation and anisotropy on thermal bending of layered composite”,J of thermal stresses 1980;3:475-93.