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Dynamic Response Analysis of Laminated Composite Sandwich Plate with Different Lattices Truss Cores Using a Semi-Analytical Method.

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Title: Dynamic Response Analysis of Laminated Composite Sandwich Plate with Different Lattices Truss Cores Using a Semi-Analytical Method.
Authors: Huang, Zhou1 (AUTHOR), Lei, Yaxi1 (AUTHOR), Liu, Yong1 (AUTHOR), Shi, Xianjie1 (AUTHOR) 411shixj@caep.cn
Source: International Journal of Structural Stability & Dynamics. 1/15/2026, Vol. 26 Issue 1, p1-46. 46p.
Subjects: Rayleigh-Ritz method, Composite structures, Boundary value problems, Mechanical vibration research, Sandwich construction (Materials), Laminated materials, Scientific method, Shear (Mechanics)
Abstract: This paper presents a semi-analytical approach to analyze the dynamic response characteristics of lattice composite sandwich plates with varying lattice truss cores. Under the premise of satisfying the classical laminate theory assumptions of Allen, the lattice truss core is considered an equivalent homogenized structure. Then, the displacement equations for the sandwich plate utilize the first-order shear deformation theory (FSDT). The energy equation for the sandwich plate is constructed using the Lagrange energy method and solved through the Rayleigh–Ritz method. To mimic arbitrary boundary conditions, artificial boundary spring techniques are utilized. The spectral geometry method (SGM) is utilized to describe the displacement field of dynamic equations and boundary conditions. Legendre polynomials are chosen to construct admissible displacement functions for the structure, supplemented by auxiliary polynomials to eliminate discontinuities at the boundaries. The method's validity is verified through comparisons with relevant literature and finite element method (FEM). Based on free vibration analysis, both steady-state and transient displacement responses of laminated composite sandwich plates are examined, considering the influences of structural parameters and boundary conditions on dynamic response characteristics. These works can provide suitable theoretical references for the engineering field. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 190513258
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Dynamic Response Analysis of Laminated Composite Sandwich Plate with Different Lattices Truss Cores Using a Semi-Analytical Method.
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  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Zhou%22">Huang, Zhou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lei%2C+Yaxi%22">Lei, Yaxi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Yong%22">Liu, Yong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Xianjie%22">Shi, Xianjie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 411shixj@caep.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Structural+Stability+%26+Dynamics%22">International Journal of Structural Stability & Dynamics</searchLink>. 1/15/2026, Vol. 26 Issue 1, p1-46. 46p.
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  Data: <searchLink fieldCode="DE" term="%22Rayleigh-Ritz+method%22">Rayleigh-Ritz method</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+structures%22">Composite structures</searchLink><br /><searchLink fieldCode="DE" term="%22Boundary+value+problems%22">Boundary value problems</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+vibration+research%22">Mechanical vibration research</searchLink><br /><searchLink fieldCode="DE" term="%22Sandwich+construction+%28Materials%29%22">Sandwich construction (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Laminated+materials%22">Laminated materials</searchLink><br /><searchLink fieldCode="DE" term="%22Scientific+method%22">Scientific method</searchLink><br /><searchLink fieldCode="DE" term="%22Shear+%28Mechanics%29%22">Shear (Mechanics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents a semi-analytical approach to analyze the dynamic response characteristics of lattice composite sandwich plates with varying lattice truss cores. Under the premise of satisfying the classical laminate theory assumptions of Allen, the lattice truss core is considered an equivalent homogenized structure. Then, the displacement equations for the sandwich plate utilize the first-order shear deformation theory (FSDT). The energy equation for the sandwich plate is constructed using the Lagrange energy method and solved through the Rayleigh–Ritz method. To mimic arbitrary boundary conditions, artificial boundary spring techniques are utilized. The spectral geometry method (SGM) is utilized to describe the displacement field of dynamic equations and boundary conditions. Legendre polynomials are chosen to construct admissible displacement functions for the structure, supplemented by auxiliary polynomials to eliminate discontinuities at the boundaries. The method's validity is verified through comparisons with relevant literature and finite element method (FEM). Based on free vibration analysis, both steady-state and transient displacement responses of laminated composite sandwich plates are examined, considering the influences of structural parameters and boundary conditions on dynamic response characteristics. These works can provide suitable theoretical references for the engineering field. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1142/S0219455425502542
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      – Code: eng
        Text: English
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        PageCount: 46
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      – SubjectFull: Rayleigh-Ritz method
        Type: general
      – SubjectFull: Composite structures
        Type: general
      – SubjectFull: Boundary value problems
        Type: general
      – SubjectFull: Mechanical vibration research
        Type: general
      – SubjectFull: Sandwich construction (Materials)
        Type: general
      – SubjectFull: Laminated materials
        Type: general
      – SubjectFull: Scientific method
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      – SubjectFull: Shear (Mechanics)
        Type: general
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      – TitleFull: Dynamic Response Analysis of Laminated Composite Sandwich Plate with Different Lattices Truss Cores Using a Semi-Analytical Method.
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            NameFull: Huang, Zhou
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            NameFull: Lei, Yaxi
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            NameFull: Liu, Yong
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            – D: 15
              M: 01
              Text: 1/15/2026
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              Y: 2026
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