Influence of different parameters on the deflection of composite laminates containing through-the-width delamination using Layerwise HSDT

Kharghani, N.; Soares, C. Guedes

doi:10.1016/j.compstruct.2015.05.040

Cited by 23 publications

(1 citation statement)

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“…It was observed that the number of existing studies on the modeling of delaminated sandwich structures and composite laminates is limited. Moreover, the suitability of existing models for multilayered structures with any arbitrary number/location of delaminations, except the computationally expensive LW [40][41][42][43][44] model, is an issue. Thus, this study attempted to develop a pure displacement-based higher-order model for simulating laminated composite and sandwich beams with any possible combination of delaminations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Intact/Delaminated Composite and Sandwich Beams Using a Higher-Order Modeling Technique

Feng,

Sheikh,

2024

J. Compos. Sci.

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A simple higher-order model (HOM) is presented in this study for the bending analysis of an intact or delaminated composite and sandwich beam. This model adopts the concept of sub-laminates to simulate multilayered structures, and each sub-laminate takes cubic variation for axial displacement and linear variation for transverse displacement through the thickness. A sub-laminate possesses displacement components at its surfaces (bottom and top) that provide a straightforward way to improve the accuracy of prediction by stacking several sub-laminates. Thus, analysts will have the flexibility to balance the computational cost and the accuracy by selecting an appropriate sub-lamination scheme. The proposed model was implemented by developing a C0 beam element that has only displacement unknowns. The model was used to solve numerical examples of composite and sandwich beams to demonstrate its performance.

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