Details
| Original language | English |
|---|---|
| Pages (from-to) | 51-60 |
| Number of pages | 10 |
| Journal | International Journal for Numerical Methods in Engineering |
| Volume | 40 |
| Publication status | Published - 4 Dec 1998 |
| Externally published | Yes |
Abstract
A method for calculating improved transverse shear stresses in laminated composite plates, which bases on the first-order shear deformation theory is developed. In contrast to many recently established methods, either higher-order lamination theories or layerwise theories, it is easily applicable to finite elements, since only C0-continuity is necessary and the numerical effort is low. The basic idea is to calculate the transverse shear stresses directly from the transverse shear forces by neglecting the influence of the membrane forces and assuming two cylindrical bending modes. Shear correction factors are no longer required, since the transverse shear stiffnesses are also provided. Numerical examples for symmetric cross-ply and antisymmetric angle-ply laminates show the superiority of the method against using shear correction factors. Furthermore, results obtained with MSC/NASTRAN, which uses a similar but simplified approach, are surpassed.
Keywords
- Fiber composite, Finite shell elements, Interlaminar shear, Laminate, Shear deformation theory, Transverse shear stiffness
ASJC Scopus subject areas
- Mathematics(all)
- Numerical Analysis
- Engineering(all)
- Mathematics(all)
- Applied Mathematics
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In: International Journal for Numerical Methods in Engineering, Vol. 40, 04.12.1998, p. 51-60.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Improved transverse shear stresses in composite finite elements based on first order shear deformation theory
AU - Rolfes, R.
AU - Rohwer, K.
PY - 1998/12/4
Y1 - 1998/12/4
N2 - A method for calculating improved transverse shear stresses in laminated composite plates, which bases on the first-order shear deformation theory is developed. In contrast to many recently established methods, either higher-order lamination theories or layerwise theories, it is easily applicable to finite elements, since only C0-continuity is necessary and the numerical effort is low. The basic idea is to calculate the transverse shear stresses directly from the transverse shear forces by neglecting the influence of the membrane forces and assuming two cylindrical bending modes. Shear correction factors are no longer required, since the transverse shear stiffnesses are also provided. Numerical examples for symmetric cross-ply and antisymmetric angle-ply laminates show the superiority of the method against using shear correction factors. Furthermore, results obtained with MSC/NASTRAN, which uses a similar but simplified approach, are surpassed.
AB - A method for calculating improved transverse shear stresses in laminated composite plates, which bases on the first-order shear deformation theory is developed. In contrast to many recently established methods, either higher-order lamination theories or layerwise theories, it is easily applicable to finite elements, since only C0-continuity is necessary and the numerical effort is low. The basic idea is to calculate the transverse shear stresses directly from the transverse shear forces by neglecting the influence of the membrane forces and assuming two cylindrical bending modes. Shear correction factors are no longer required, since the transverse shear stiffnesses are also provided. Numerical examples for symmetric cross-ply and antisymmetric angle-ply laminates show the superiority of the method against using shear correction factors. Furthermore, results obtained with MSC/NASTRAN, which uses a similar but simplified approach, are surpassed.
KW - Fiber composite
KW - Finite shell elements
KW - Interlaminar shear
KW - Laminate
KW - Shear deformation theory
KW - Transverse shear stiffness
UR - http://www.scopus.com/inward/record.url?scp=0030733416&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1097-0207(19970115)40:1<51::AID-NME49>3.0.CO;2-3
DO - 10.1002/(SICI)1097-0207(19970115)40:1<51::AID-NME49>3.0.CO;2-3
M3 - Article
AN - SCOPUS:0030733416
VL - 40
SP - 51
EP - 60
JO - International Journal for Numerical Methods in Engineering
JF - International Journal for Numerical Methods in Engineering
SN - 0029-5981
ER -