Eigenvalue analysis for plain-woven fabric structure using shell element and one smoothing cell in the 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: Eigenvalue analysis;    First-order shear deformation theory;    Free-vibration analysis;    Integration scheme;    Numerical implementation;    Plain woven fabrics;    Smoothed finite element method;    Strain smoothing techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/459/1/012082/pdf
DOI  :  10.1088/1757-899X/459/1/012082

来源: IOP

【 摘 要 】

An efficient four-node quadrilateral (Q4) shell element based on the first-order shear deformation theory of plate (FSDT) and the strain smoothing technique in finite elements (referred as SFEM) was proposed for eigenvalue analysis of plain-woven fabric structure. A one smoothing domain (or cell) integration scheme in SFEM was proposed to evaluate the nodal train fields of Q4 shell elements. The numerical result of eigenvalue analysis, which was in the case of free vibration analysis, approximated to that one implemented in the finite element method (FEM) but gave a higher efficiency in computation in terms of central processing unit (CPU) time and numerical implementation.