Dynamic Snap-Through of a Laterally Loaded Arch Under Prescribed End Motion
Resource
International Journal of Solids and Structures 40: 4769-4787
Journal
International Journal of Solids and Structures
Journal Volume
40
Journal Issue
18
Pages
4769-4787
Date Issued
2003
Date
2003
Author(s)
Lin, Jian-San
Abstract
Emphasis of this paper is placed on finding out whether dynamic snap-through will occur when the laterally loaded arch is under prescribed end motion with constant speed. The first harmonic component q1sin ξ of the lateral load is assumed to be the dominant one, while the effects of higher components such as q2sin 2ξ are also discussed in detail. It is found that dynamic snap-through may occur in either stretching or compressing process when the end speed of the loaded arch is in certain range. The dangerous zones for dynamic snap-through can be determined by comparing the energy barrier and the total energy gained by the arch when the end is moved with infinitely large speed. Generally speaking, for a specified q1 it is easier for the arch under prescribed end motion to snap dynamically if q2≠0. © 2003 Elsevier Ltd. All rights reserved.
Subjects
Dynamic snap-through; Prescribed end motion; Shallow arch
Other Subjects
Compression testing; Stretching; Lateral loads; Dynamic loads; Dynamic response; structural performance
Type
journal article
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