期刊
JOURNAL OF COMPOSITE MATERIALS
卷 55, 期 14, 页码 1967-1978出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998320980054
关键词
Viscoelastic analysis; smoothed finite element methods; first-order shear deformation theory; Laplace transform; hygrothermal effects
This study examines viscoelastic analysis of composite laminated plates using a smoothed finite element method, considering the influence of hygrothermal effects. The first-order shear deformation theory is employed, and the stress-strain relationship is simplified in the transformed domain using Laplace transformation and inverse techniques. This provides an effective computational tool for analyzing viscoelastic response in laminated composites with consideration of time and hygrothermal effects.
In the present study, the viscoelastic analysis is investigated for composite laminated plates using a smoothed finite element method called cell/element based smoothed discrete shear gap method. Moreover, the hygrothermal effects is considered on the viscoelastic responses of composite laminated plates. The first-order shear deformation theory is employed due to its simplicity and accuracy. With the help of the convolution theorem in Laplace transformation, the complex stress-strain relationship in integral form is simplified to linear in transformed domain. Therefore, all computing procedures are performed in the transformed domain and then, using inverse techniques (Fast Fourier Transform) to converted back to the real-time domain. The study provides an effective computational tool to analyze the viscoelastic response of laminated composite taking into account the influence of the time and hygrothermal effects.
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