Research Article
Oct 1977
Finite Element Formulation for Farm Silo Analysis
Authors: Alfred G. Bishara, M.ASCE, Karoon Chandrangsu, and Mostafa H. Mahmoud, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 103, Issue 10
Abstract
A finite element formulation for the analysis of deformation and stress histories in circular farm silos, during sequential loading, has been established. The silage-silo global system is considered as an axisymmetric space structure with the silage assumed as an isotropic piecewise linear viscoelastic continuum contained in an elastic cylinder. The model permits simulation of filling sequence, friction along silo-material interface, and wall deformations. The analysis is formulated in the form of a boundary value problem and approximate solutions by finite element method is achieved through variational techniques. The devised formulation was applied to predict stress histories, deformations, and resulting capacities produced during sequential loading of a 24-ft x 70-ft (7.32-m x 21.35-m) top unloading drained silo, using material constitutive functions that have been previously established through triaxial creep tests on corn silage (mc=68%).
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Published In
Journal of the Structural Division
Volume 103 • Issue 10 • October 1977
Pages: 1903 - 1919
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Oct 1977
Published online: Feb 1, 2021
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Authors
Affiliations
Alfred G. Bishara, M.ASCE
Prof. of Civ. Engrg., The Ohio State Univ., Columbus, Ohio
Karoon Chandrangsu
Grad. Research Assoc., Dept. of Civ. Engrg., The Ohio State Univ., Columbus, Ohio
Mostafa H. Mahmoud, M.ASCE
Struct. Consultant, R.S. Fling & Partners, Consulting Engrs., Columbus, Ohio
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.