Details
| Original language | English |
|---|---|
| Pages (from-to) | 843-854 |
| Number of pages | 12 |
| Journal | Computers and Structures |
| Volume | 84 |
| Issue number | 13-14 |
| Publication status | Published - 20 Mar 2006 |
| Externally published | Yes |
Abstract
For analysing deformation and stresses of sandwich structures a displacement model is developed using the first-order shear deformation theory (FSDT) for each of the three layers, the core as well as the two face sheets. An enhancement of the Extended 2D Method by Rolfes and Rohwer [Improved transverse shear stresses in composite finite elements based on first order shear deformation theory. Int J Numer Methods Engrg 1997;40:51-60] is used to calculate improved transverse stiffness and stresses. Since the numerical effort is comparatively small and only C0-continuity is required for the shape functions, the theory is suitable for finite element applications. Within this paper a corresponding three-layered finite element is presented. The performance and the applicability of the proposed element are evaluated by considering numerical examples and by comparing with other two-dimensional models.
Keywords
- Composite, Extended 2D Method, Finite shell elements, Multilayered shell theory, Sandwich, Transverse stresses
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Mathematics(all)
- Modelling and Simulation
- Materials Science(all)
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computer Science Applications
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In: Computers and Structures, Vol. 84, No. 13-14, 20.03.2006, p. 843-854.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A three-layered sandwich element with improved transverse shear stiffness and stresses based on FSDT
AU - Kärger, L.
AU - Wetzel, A.
AU - Rolfes, R.
AU - Rohwer, K.
PY - 2006/3/20
Y1 - 2006/3/20
N2 - For analysing deformation and stresses of sandwich structures a displacement model is developed using the first-order shear deformation theory (FSDT) for each of the three layers, the core as well as the two face sheets. An enhancement of the Extended 2D Method by Rolfes and Rohwer [Improved transverse shear stresses in composite finite elements based on first order shear deformation theory. Int J Numer Methods Engrg 1997;40:51-60] is used to calculate improved transverse stiffness and stresses. Since the numerical effort is comparatively small and only C0-continuity is required for the shape functions, the theory is suitable for finite element applications. Within this paper a corresponding three-layered finite element is presented. The performance and the applicability of the proposed element are evaluated by considering numerical examples and by comparing with other two-dimensional models.
AB - For analysing deformation and stresses of sandwich structures a displacement model is developed using the first-order shear deformation theory (FSDT) for each of the three layers, the core as well as the two face sheets. An enhancement of the Extended 2D Method by Rolfes and Rohwer [Improved transverse shear stresses in composite finite elements based on first order shear deformation theory. Int J Numer Methods Engrg 1997;40:51-60] is used to calculate improved transverse stiffness and stresses. Since the numerical effort is comparatively small and only C0-continuity is required for the shape functions, the theory is suitable for finite element applications. Within this paper a corresponding three-layered finite element is presented. The performance and the applicability of the proposed element are evaluated by considering numerical examples and by comparing with other two-dimensional models.
KW - Composite
KW - Extended 2D Method
KW - Finite shell elements
KW - Multilayered shell theory
KW - Sandwich
KW - Transverse stresses
UR - http://www.scopus.com/inward/record.url?scp=33645984845&partnerID=8YFLogxK
U2 - 10.1016/j.compstruc.2006.02.007
DO - 10.1016/j.compstruc.2006.02.007
M3 - Article
AN - SCOPUS:33645984845
VL - 84
SP - 843
EP - 854
JO - Computers and Structures
JF - Computers and Structures
SN - 0045-7949
IS - 13-14
ER -