Details

Autor(en) / Beteiligte

• Patel, B.P.
• Ganapathi, M.
• Makhecha, D.P.

Titel

Hygrothermal effects on the structural behaviour of thick composite laminates using higher-order theory

Ist Teil von

• Composite structures, 2002-04, Vol.56 (1), p.25-34

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2002

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Here, static and dynamic characteristics of thick composite laminates exposed to hygrothermal environment are studied using a realistic higher-order theory developed recently. The formulation accounts for the nonlinear variation of the in-plane and transverse displacements through the thickness, and abrupt discontinuity in slope of the in-plane displacements at any interface. The analysis is carried out employing a C 0 QUAD-8 isoparametric higher-order finite element. It is shown that the shear deformation theory without accounting for the thickness-stretching effect and slope discontinuity in the in-plane displacements may not be adequate for the analysis of fairly thick composite laminates exposed to hygrothermal loading. The significance of retaining various higher-order terms in the present model, in evaluating the deflection, buckling and natural frequency for composite laminates at different moisture concentration and temperature, is brought out through parametric study.