Stability of Prebuckled Sandwich Elastica Arches: Parametric Study
Publication: Journal of Engineering Mechanics
Volume 119, Issue 4
Abstract
Stability of a newly proposed structural system, namely the prebuckled (prestressed) sandwich arch is investigated. Stability of prestressed elastica arches with sandwich or homogeneous sections are compared through a parametric study of various geometric and mechanical factors by using a nonlinear finite element model. Results indicate that for prestressed sandwich elastica arches the relative thickness and shear modulus of the core layer not only affect the critical load of the arch, but may also change its governing mode of buckling. On the other hand, flexural rigidity of the core layer does not have a significant impact on the buckling load. Also, the bifurcation loads of prestressed sandwich arches increase almost proportionally with the rise parameter of the arch. The category of prestressed elastica arches can be optimized by using sandwich construction since prestressed sandwich arches are shown to be less vulnerable to loading imperfections leading to sidesway buckling. The effects are more pronounced for sandwich sections with thicker and softer cores.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chini, S. A., and Wolde‐Tinsae, A. M. (1988a). “Critical load and postbuckling of arch frameworks.” J. Engrg. Mech., ASCE, 114(9), 1435–1453.
2.
Chini, S. A., and Wolde‐Tinsae, A. M. (1988b). “Effect of prestressing on elastica arches.” J. Engrg. Mech., ASCE, 114(10), 1791–1800.
3.
Clifton, R. J. (1970). “Snap‐buckling of shallow prestressed arches.” J. Engrg. Mech. Div., ASCE, 96(6), 1157–1170.
4.
Huddleston, J. V. (1970). “Behavior of a steep prestressed arch made from a buckled strut.” J. Applied Mech. Trans. ASME, 37(4), 984–994.
5.
Mirmiran, A. (1991). “Nonlinear stability analysis of prestressed sandwich arches using the finite element method,” PhD thesis, Univ. of Maryland, College Park, Md.
6.
Mirmiran, A., and Wolde‐Tinsae, A. M. (1991). “Post‐buckling analysis of arches.” Proc. 13th Canadian Congress of Applied Mech., Univ. of Manitoba, Winnipeg, Canada, 336–337.
7.
Mirmiran, A., and Wolde‐Tinsae, A. M. (1993). “Buckling and postbuckling of prestressed sandwich arches.” J. Struct. Engrg., ASCE, 119(1), 262–278.
8.
Nelsen, D. (1979). “A feasibility study on the use of sandwich construction in prebuckled arches,” MS thesis, Iowa State Univ., Ames, Iowa.
9.
Plantema, F. J. (1966). Sandwich construction—The bending and buckling of sandwich beams, plates and shell. John Wiley and Sons, Inc., New York, N.Y.
10.
Thompson, J. M. T., and Hunt, G. W. (1983). “On the buckling and imperfection‐sensitivity of arches with and without prestress.” Int. J. Solids Struct., 10(5), 445–459.
11.
Wolde‐Tinsae, A. M. (1986). “Prebuckled sandwich domes and super domes.” Proc. IASS Symp., K. Heki, ed., Elsevier Science Publishers B.V., Amsterdam, the Netherlands, 345–352.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 119 • Issue 4 • April 1993
Pages: 767 - 785
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jul 15, 1992
Published online: Apr 1, 1993
Published in print: Apr 1993
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.