Finite Element Analysis on Modal Parameters of Anisotropic Laminated Plates

Xiao, Caiyuan; Lin, Dan; Ju, F. D.

doi:10.1115/1.3269553

Cited by 4 publications

(3 citation statements)

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“…From Table 1, it is obvious that the obtained results agree with those in Ref. [12]. This shows that of the used calculation method and the reliability of the complied program in this paper are accurate.…”

Section: Numerical Results and Analysissupporting

confidence: 80%

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Free vibration and transverse stresses of viscoelastic laminated plates

Wang

2009

Appl. Math. Mech.-Engl. Ed.

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Based on Reddy's layerwise theory, the governing equations for dynamic response of viscoelastic laminated plate are derived by using the quadratic interpolation function for displacement in the direction of plate thickness. Vibration frequencies and loss factors are calculated for free vibration of simply supported viscoelastic sandwich plate, showing good agreement with the results in the literature. Harmonious transverse stresses can be obtained. The results show that the transverse shear stresses are the main factor to the delamination of viscoelastic laminated plate in lower-frequency free vibration, and the transverse normal stress is the main one in higher-frequency free vibration. Relationship between the modulus of viscoelastic materials and transverse stress is analyzed. Ratio between the transverse stress's maximum value and the in-plane stress's maximum-value is obtained. The results show that the proposed method, and the adopted equations and programs are reliable.

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Section: Numerical Results and Analysissupporting

confidence: 80%

“…Thereby, HSDT is quite difficult to be applied to complicated geometries, it is suitable only for specific boundary constrains. Therefore, various numerical methods are proposed such as finite element method [10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Free vibration and transverse stresses of viscoelastic laminated plates

Wang

2009

Appl. Math. Mech.-Engl. Ed.

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“…As pointed out earlier, F SD T does not satisfy the zero shear stress condition on the top and bottom surfaces of plates. Considering the effect of transverse shear deformation, a higher-order shear deformation theory that satis es these conditions was introduced by Xio and co-workers [28,29]. H owever, reduced integration has been employed to evaluate shear energy terms.…”

Section: Introductionmentioning

confidence: 99%

Analysis of damped composite sandwich plates using plate bending elements with substitute shear strain fields based on Reddy's higher-order theory

Nayak

Shenoi

Moy

2002

Proceedings of the Institution of Mechanical Engineers, Part C:

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Two new C 0 assumed strain nite element formulations of R eddy's higher-order theory are used to determine the natural frequencies and loss factors of layered anisotropic composite and sandwich plates. M aterial properties typical of bre polyester resins for the skin and H ER EX C70 PVC foam damping materials for cores are used to show the parametric effects of plate aspect ratio, length-thickness ratio on natural frequencies and loss factors. A consistent mass matrix is adopted in the present formulation. Both frequency-independent and frequency-dependent damping of viscoelastic materials are considered. The developed elements are free from spurious zero energy modes due to the assumed strain approach.

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