Buckling analysis of plain-woven fabric structure using shell element and a one cell-based integration scheme in smoothed finite element method

Aegean International Textile and Advanced Engineering Conference 2018

Nguyen, Q.T.^1 ; Gomes, A.J.P.^2 ; Ferreira, F.B.N.^1

Universidade Do Minho, 2C2T - Centro de Ciência e Tecnologia Têxtil, Campus de Azurém, Guimarães

4800-058, Portugal^1

Instituto de Telecomunicações, Universidade da Beira Interior, R. Marquês de Ávila e Bolama, Covilhã

6201-001, Portugal^2

关键词: First-order shear deformation theory;    Kawabata evaluation system;    Mixed interpolations;    Numerical computations;    Physical and mechanical parameters;    Smoothed finite element method;    Strain smoothing techniques;    Transverse shear strains;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/459/1/012055/pdf
DOI  :  10.1088/1757-899X/459/1/012055

来源: IOP

【 摘 要 】

A one smoothing cell integration scheme in the strain smoothing technique in finite elements (referred as SFEM) was proposed to evaluate the nodal train fields of a four-node quadrilateral (Q4) shell element, which is based on the first-order shear deformation theory of plate (FSDT). A mixed interpolation of tensorial components (MITC) approaches for Q4 transverse shear strains also applied to eliminate a shear locking phenomenon that may occur when the thin plate/shell elements are geometrically distorted in curved geometries of fabric sheet. The numerical eigenvalues of buckling analysis of a plain-woven fabric sample, of which physical and mechanical parameters extracted from Kawabata evaluation system for fabrics (KES-FB), obtained a higher efficiency in numerical computation and approximated to Q4 shell element implemented in the finite element method (FEM).