Free Vibration Analysis of Laminated Composite Plates Based on the Reconstructed Edge-Based Smoothing DSG Method

LI Qing; CHEN Shenshen

doi:10.21656/1000-0887.430109

Volume 43 Issue 10

Oct. 2022

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LI Qing, CHEN Shenshen. Free Vibration Analysis of Laminated Composite Plates Based on the Reconstructed Edge-Based Smoothing DSG Method[J]. Applied Mathematics and Mechanics, 2022, 43(10): 1123-1132. doi: 10.21656/1000-0887.430109

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Free Vibration Analysis of Laminated Composite Plates Based on the Reconstructed Edge-Based Smoothing DSG Method

doi: 10.21656/1000-0887.430109

LI Qing,
CHEN Shenshen^,

School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, P.R.China

Received Date: 2022-03-31
Accepted Date: 2022-07-15
Rev Recd Date: 2022-06-22

Available Online: 2022-09-14

Publish Date: 2022-10-31

Abstract

Abstract

To avoid transverse shear locking and improve the accuracy, the RES-DSG3 method was proposed through the incorporation of the non-isoparametric DSG method with a novel edge-based smoothing technique based on global coordinates, and all the integration of smoothed matrices can be calculated along the boundary segments of smoothed cells without coordinate mapping. Based on the 1st-order shear theory, the RES-DSG3 method was used to analyze free vibration natural frequencies of laminated composite plates with different material parameters, edge-thickness ratios and boundary conditions. The free vibrations of the composite plates were analyzed numerically. The calculation of the example verifies the feasibility and effectiveness of the proposed method.
- edge-based smoothing technique,
- discrete shear gap,
- laminated composite plate,
- 1st-order shear deformation theory,
- free vibration

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References(23)

References

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