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| Avtorstvo: |
Boštjan BRANK // 1.01 Izvirni znanstveni članek
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| Leto: |
1995 |
| Citat: |
BRANK, Boštjan, PERIĆ, Djordje, DAMJANIĆ, Frano. On
implementation of a nonlinear four node shell finite element for thin
multilayered elastic shells. Comput. mech., 1995, vol. 16, no 5, str.
341-359. |
| Povzetek: |
A simple non-linear stress resultant four node shell finite
element is presented. The underlying shell theory is developed from the three
dimensional continuum theory via standard assumptions on the displacement field.
A model for thin shells is obtained by approximating terms describing the shell
geometry. In this work the rotation of the shell director is parameterized by
the two Euler angles, although other approaches can be easily accomodated. A
procedure is provided to extend the presented approach by including the
through-thickness variable material properties. These may include a general
non-linear elastic material with varied degree of orthotropy, which is typical
for fibre reinforced composiotes. Thus a simple and efficient model suitable for
analysis of multilayered composite shells is attained. Shell kinematics is
consistently linearized, leading to the Newton-Raphson numerical procedure,
which preserves quadratic rate of asymptotic convergence. A range of linear and
non-linear tests is provided and compared with available solutions to illustrate
the approach [COBISS.SI-ID 68967]
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| Tipologija: |
1.01 Izvirni znanstveni članek |
| COBISS ID |
68967 Polni zapis iz sistema COBISS |
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Vpisal 2009/06/10 11:56
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