2013
DOI: 10.1016/j.compstruct.2013.07.019
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Assessment of the Refined Zigzag Theory for bending, vibration, and buckling of sandwich plates: a comparative study of different theories

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Cited by 95 publications
(49 citation statements)
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“…(28)). This makes Murakami's zigzag functions approach generally unreliable, especially when the laminate does not present a repetitive or periodic lay-up, as pointed out by the same Murakami [52] and recently also by Gherlone [84], Iurlaro et al [85], [94] and Iurlaro [95]. In extreme cases, like that of sandwich taken used for the numerical assessment presented in this paper, the Murakami's zigzag approach completely fails, in the sense that Murakami's zigzag functions do not give any contribution and Murakami's approach provides the same incorrect results of FSDT with unitary shear correction factors.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…(28)). This makes Murakami's zigzag functions approach generally unreliable, especially when the laminate does not present a repetitive or periodic lay-up, as pointed out by the same Murakami [52] and recently also by Gherlone [84], Iurlaro et al [85], [94] and Iurlaro [95]. In extreme cases, like that of sandwich taken used for the numerical assessment presented in this paper, the Murakami's zigzag approach completely fails, in the sense that Murakami's zigzag functions do not give any contribution and Murakami's approach provides the same incorrect results of FSDT with unitary shear correction factors.…”
Section: Discussionmentioning
confidence: 99%
“…Both CLPT and FSDT make use of a linear expansion of the in-plane displacement. In addition to the weaknesses of the ESL models, it is well-know that FSDT needs ad hoc shear correction factors to yield accurate results [14,15,16,17,18]. As well-known, CLPT and FSDT perform relatively well in predicting global quantities, such as, transverse displacement, fundamental natural frequency and buckling load for thin and moderately thick laminates that have a relatively low degree of transverse heterogeneity; however, their accuracy diminishes rapidly when they are used to predict the displacement and stress fields in highly heterogeneous and/or thick composite and sandwich laminates [11,19,16,20,21].…”
Section: Introductionmentioning
confidence: 99%
“…In Ref. [53], by including inertial effects and von Karman's nonlinear strain-displacement relations within RZT, elastodynamic and buckling analyses have been performed for sandwich plates. This RZT assessment resulted in superior predictions for deflections, natural frequencies, buckling loads, and through-the-thickness distributions of displacements, strains, and stresses.…”
mentioning
confidence: 99%
“…Recently, a robust displacement theory, Refined Zigzag Theory (RZT), that is well suited for beam and plate finite elements, has been developed [35,36,[47][48][49][50][51][52][53][54]. Adopting the FSDT kinematic field as a baseline or a coarse approximation, the in-plane displacement is superposed by a piecewise-continuous zigzagshaped displacement, which has a weighted-average rotation as the amplitude function of the in-plane coordinates.…”
mentioning
confidence: 99%
“…Among others, the elasticity solution [34,48], higher-order and layerwise theories [49,[50][51][52][53][54] and zig-zag theories [55][56][57][58] should be mentioned. These theories are also applied to free vibration and buckling problems [13,55,[59][60][61][62][63][64][65][66][67][68][69][70][71][72], to develop Finite Element (FE) models and types [73][74][75][76][77][78] moreover to solve issues related to nonlinear effects [79][80][81], transient dynamic analysis [82][83][84][85][86], dynamic stability [87], deformation analysis of test specimens [88] and functionally graded core materials [89][90][91][92]…”
Section: Introductionmentioning
confidence: 99%