Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model
Abstract
The goal of this paper is to develop a computational model for the free vibration analysis of laminated composite shells with embedded delaminations. Laminated composite shells of different shape are modeled using the assembly of layered plate finite elements based on the Generalized Laminated Plate Theory of Reddy. Discontinuities in the displacement field are implemented using the Heaviside step functions. The material is assumed as orthotropic and linearly elastic. The solver is coded in MATLAB. For the generation of models and the visualization of results, GiD Pre/Post Processor is used. After the verification of the proposed model for the intact composite shells using the existing data from the literature, the effect of delamination size on the fundamental frequencies is investigated numerically. A variety of new results for delaminated shells is presented as a benchmark for future investigations.
Keywords:
Free vibrations / Composite shell / FEM / Delamination / AssemblySource:
Composite Structures, 2016, 156, 320-332Publisher:
- Elsevier Ltd
Funding / projects:
- Research on condition assessment and improvement methods of civil engineering structures in view of their serviceability, load-bearing capacity, cost effectiveness and maintenance (RS-MESTD-Technological Development (TD or TR)-36048)
- German Academic Exchange Service (DAAD), project SEEFORM
DOI: 10.1016/j.compstruct.2015.07.125
ISSN: 0263-8223
WoS: 000386752400027
Scopus: 2-s2.0-84993993251
Collections
Institution/Community
GraFarTY - JOUR AU - Marjanović, Miroslav AU - Vuksanović, Đorđe PY - 2016 UR - https://grafar.grf.bg.ac.rs/handle/123456789/770 AB - The goal of this paper is to develop a computational model for the free vibration analysis of laminated composite shells with embedded delaminations. Laminated composite shells of different shape are modeled using the assembly of layered plate finite elements based on the Generalized Laminated Plate Theory of Reddy. Discontinuities in the displacement field are implemented using the Heaviside step functions. The material is assumed as orthotropic and linearly elastic. The solver is coded in MATLAB. For the generation of models and the visualization of results, GiD Pre/Post Processor is used. After the verification of the proposed model for the intact composite shells using the existing data from the literature, the effect of delamination size on the fundamental frequencies is investigated numerically. A variety of new results for delaminated shells is presented as a benchmark for future investigations. PB - Elsevier Ltd T2 - Composite Structures T1 - Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model EP - 332 SP - 320 VL - 156 DO - 10.1016/j.compstruct.2015.07.125 ER -
@article{ author = "Marjanović, Miroslav and Vuksanović, Đorđe", year = "2016", abstract = "The goal of this paper is to develop a computational model for the free vibration analysis of laminated composite shells with embedded delaminations. Laminated composite shells of different shape are modeled using the assembly of layered plate finite elements based on the Generalized Laminated Plate Theory of Reddy. Discontinuities in the displacement field are implemented using the Heaviside step functions. The material is assumed as orthotropic and linearly elastic. The solver is coded in MATLAB. For the generation of models and the visualization of results, GiD Pre/Post Processor is used. After the verification of the proposed model for the intact composite shells using the existing data from the literature, the effect of delamination size on the fundamental frequencies is investigated numerically. A variety of new results for delaminated shells is presented as a benchmark for future investigations.", publisher = "Elsevier Ltd", journal = "Composite Structures", title = "Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model", pages = "332-320", volume = "156", doi = "10.1016/j.compstruct.2015.07.125" }
Marjanović, M.,& Vuksanović, Đ.. (2016). Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model. in Composite Structures Elsevier Ltd., 156, 320-332. https://doi.org/10.1016/j.compstruct.2015.07.125
Marjanović M, Vuksanović Đ. Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model. in Composite Structures. 2016;156:320-332. doi:10.1016/j.compstruct.2015.07.125 .
Marjanović, Miroslav, Vuksanović, Đorđe, "Free vibrations of laminated composite shells using the rotation-free plate elements based on Reddy's layerwise discontinuous displacement model" in Composite Structures, 156 (2016):320-332, https://doi.org/10.1016/j.compstruct.2015.07.125 . .