Mathematical finite element model for general analysis of double curved shell according to strain based approach
Other Title(s)
نموذج رياضي لعنصر محدد ثنائي التقوس للتحليل العام للمنشاءات القشرية اعتمادا على مبدأ الانفعال
Author
Source
Journal of Engineering and Sustainable Development
Issue
Vol. 21, Issue 6 (30 Nov. 2017), pp.20-28, 9 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2017-11-30
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
A new mathematical finite element model suitable for the general bending analysis of double curved shell structures depending on the strain based approach has been derived.
The element is simple and contains only the essential degrees of freedom.
The element has the advantage over the other available double curved shell elements.
The improvement obtained is due to the fact that all the displacement fields of the present element satisfy the exact representation of rigid body modes of displacements then the shape function error due to rigid body modes becomes zero.
Also, the present element satisfies the full geometry of the double curved shell due to this point discretization error becomes zero.
Finally, the error due to strain mode becomes very small because the present element satisfies the compatibility equations of strains and the 19 coefficients of strain mode derived exactly from partial differential equations of strains.
The numerical solution of several problems by using the present element proved to be powerful in the structural analysis of double curved shells, such as cylindrical shells.
Its results are better than the solution of other elements and packages with respect to analytical solution.
American Psychological Association (APA)
Mahdi, Haydar Abd al-Amir. 2017. Mathematical finite element model for general analysis of double curved shell according to strain based approach. Journal of Engineering and Sustainable Development،Vol. 21, no. 6, pp.20-28.
https://search.emarefa.net/detail/BIM-848652
Modern Language Association (MLA)
Mahdi, Haydar Abd al-Amir. Mathematical finite element model for general analysis of double curved shell according to strain based approach. Journal of Engineering and Sustainable Development Vol. 21, no. 6 (Nov. 2017), pp.20-28.
https://search.emarefa.net/detail/BIM-848652
American Medical Association (AMA)
Mahdi, Haydar Abd al-Amir. Mathematical finite element model for general analysis of double curved shell according to strain based approach. Journal of Engineering and Sustainable Development. 2017. Vol. 21, no. 6, pp.20-28.
https://search.emarefa.net/detail/BIM-848652
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-848652