PSI - Issue 5

B. Boukert et al. / Procedia Structural Integrity 5 (2017) 115–122 B.Boukert/ Structural Integrity Procedia 00 (2017) 000 – 00

122 8

4. Conclusion

In this paper the high-order theory developed by of Reddy has been used to evaluate the influence of hygoothermal loading type on the behavior of the thick composite plate.The plate is under a transverse sinusoidal mechanical loading type coupled with different types of thermal and hygroscopic loading, the results shows a contributory role in the behaviour of thick composite plates, an important and direct influence of the hygrothermal loading has been observed on the longitudinal (SIG xx ) , transversal (SIG yy ) ,longitudinal tangential (SIG xy ) stresses,a very weak influence has been observed for the transverse shear stress (SIG xz , SIG yz ).

References

[1] J.N.Reddy , ”Asimple Higher Order Theory for laminated composite plates” ,Journal of applied Mechanics,December 1984,Vol 51/745. [2] Nelson RB, Lorch DR. “ A refined theory for laminated orthotropic plates ” . J ApplMech 1974;41(171). [3] Lo KH, Christensen RM, Wu EM. “ A high-order theory of plate deformation ” . Part-2: laminated plates. Trans ASME J applied Mechanics 1977;44:669 – 76. [4] Kant T, Swaminathan K. “ Analytical solution for the static analysis of laminated composite and sandwich based on higher order refined theory ” . Compos Struct 2002;56:329 – 44. [5] Tabakov P, Verijenkov V, Verijenkov B.“ Refined theory for the analysis of laminated orthotropic structures ” . Compos Struct 2003;62:435 – 41. [6 ] J.N.Reddy,” Effects of shear deformation and anisotropy on the thermal bending of layered composite plates ” ,Journal of thermal stresses 1980;3:475-93. [7 ] A.M. Zenkour, “Analytical solution for bending of c ross-ply laminated plates under thermo-mechanical loading ‘’j.compstruct.2003.11.012 [8] O.Sayman,”Elastic – Plastic stress analysis of symmetric aluminium metal matrix composite laminated plates under thermal loads varying linearly “,J.compositeesh 2004.02.002; [9 ] O.Sayman,”Elastic– Plastic stress analysis of symmetric aluminium metal matrix composite laminated plates under a parabolically temperature distribution “,composites science and technology 2001;61-2129:2137. [10 ] 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. [11 ] J.N.Reddy ,”Mechanics of laminated composite plates and shelles theory and analysis ” ,second edition CRC Press,1997. [12] Pipes RB, Vinson JR, Chou TW. ‘’ On the hygrothermal response of laminated composite systems ’’ . J Compos Mater 1976;10:129 – 48. [13] Sai Ram KS, Sinha PK.” Hygrothermal effects on the bending characteristics of laminated composite plates ” .ComputStruct 1991;40(4):1009 – 15. [14] Basi S, Rogers TG, Spencer AJM.” Hygrothermoelastic analysis of anisotropic inhomogeneous and laminated plates ” . J MechPhys Solids 1991;39(1):1 – 22. [15] Pate l BP, Ganapathi M, Makhecha DP.” Hygrothermal effects on the structural behavior of thick composite laminates using higher-order theory ” . Compos Struct 2002;56:25 – 34. [16] Lo SH, Zhen W, Cheung YK, Wanji C.” Hygrothermal effects on multilayered composite plates using a refined higher order theory ” . Compos Struct 2010;92:633 – 46. [17 ] A.M. Zenkour, “ Hygrothermal effects on the dending of angle ply composite plates using a sinusoidal theory ‘’ j.compstruct.2012;94.3685 3696.