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dc.contributor.author
Flores, Fernando Gabriel  
dc.contributor.author
Nallim, Liz  
dc.contributor.author
Oller, Sergio Horacio Cristobal  
dc.date.available
2018-11-05T14:01:24Z  
dc.date.issued
2017-08  
dc.identifier.citation
Flores, Fernando Gabriel; Nallim, Liz; Oller, Sergio Horacio Cristobal; Formulation of solid-shell finite elements with large displacements considering different transverse shear strains approximations; Elsevier Science; Finite Elements In Analysis And Design; 130; 8-2017; 39-52  
dc.identifier.issn
0168-874X  
dc.identifier.uri
http://hdl.handle.net/11336/63593  
dc.description.abstract
This work presents a general formulation and implementation in solid-shell elements of the refined zigzag theory and the trigonometric shear deformation theory in an unified way. The model thus conceived is aimed for use in the analysis, design and verification of structures made of composite materials, in which shear strains have a significant prevalence. The refined zigzag theory can deal with composite laminates economically, adding only two nodal degrees of freedom, with very good accuracy. It assumes that the in-plane displacements have a piece-wise linear shape across the thickness depending on the shear stiffness of each composite layer. The trigonometric theory assumes a cosine variation of the transverse shear strain. A modification of this theory is presented in this paper allowing its implementation with C0 approximation functions. Two existing elements are considered, an eight-node tri-linear hexahedron and a six-node triangular prism. Both elements use a modified right Cauchy-Green deformation tensor C¯ where five of its six components are linearly interpolated from values computed at the top and bottom surfaces of the element. The sixth component is computed at the element center and it is enhanced with an additional degree of freedom. This basic kinematic is improved with a hierarchical field of in-plane displacements expressed in convective coordinates. The objective of this approach is to have a simple and efficient finite element formulation to analyze composite laminates under large displacements and rotations but small elastic strains. The assumed natural strain technique is used to prevent transverse shear locking. An analytic through-the-thickness integration and one point integration on the shell plane is used requiring hourglass stabilization for the hexahedral element. Several examples are considered on the one hand to compare with analytical static solutions of plates, and on the other hand to observe natural frequencies, buckling loads and the non-linear large displacement behavior in double curved shells. The results obtained are in a very good agreement with the targets used.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Composite Laminate  
dc.subject
Large Displacements  
dc.subject
Solid-Shell  
dc.subject
Transverse Shear  
dc.subject.classification
Otras Ingeniería Civil  
dc.subject.classification
Ingeniería Civil  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Formulation of solid-shell finite elements with large displacements considering different transverse shear strains approximations  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-10-23T17:29:04Z  
dc.journal.volume
130  
dc.journal.pagination
39-52  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Flores, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Departamento de Estructuras; Argentina  
dc.description.fil
Fil: Nallim, Liz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina  
dc.description.fil
Fil: Oller, Sergio Horacio Cristobal. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Politécnica de Catalunya; España. Centre Internacional de Mètodes Numèrics En Enginyerie; Argentina  
dc.journal.title
Finite Elements In Analysis And Design  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.finel.2017.03.001  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168874X16304528