Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 31, Number 4, May25 2019 , pages 397-408 DOI: https://doi.org/10.12989/scs.2019.31.4.397 |
|
|
|
Geometrically nonlinear meshfree analysis of 3D-shell structures based on the double directors shell theory with finite rotations |
||
Hana Mellouli, Hanen Jrad, Mondher Wali and Fakhreddine Dammak
|
||
| Abstract | ||
| In this paper, a geometrically nonlinear meshfree analysis of 3D various forms of shell structures using the double director shell theory with finite rotations is proposed. This theory is introduced in the present method to remove the shear correction factor and to improve the accuracy of transverse shear stresses with the consideration of rotational degrees of freedom.The present meshfree method is based on the radial point interpolation method (RPIM) which is employed for the construction of shape functions for a set of nodes distributed in a problem domain. Discrete system of geometrically nonlinear equilibrium equations solved with the Newton-Raphson method is obtained by incorporating these interpolations into the weak form. The accuracy of the proposed method is examined by comparing the present results with the accurate ones available in the literature and good agreements are found. | ||
| Key Words | ||
| meshfree method; geometric nonlinear analysis; 3D shell structures; double directors shell theory; finite rotations; RPIM | ||
| Address | ||
| (1) Monther Wali: Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia; (2) Hana Mellouli, Hanen Jrad, Monther Wali, Fakhreddine Dammak: Laboratory of Electromechanical Systems (LASEM), National Engineering School of Sfax, University of Sfax, Route de Soukra km 4, 3038 Sfax, Tunisia. | ||