Deformation sequence of a constrained spatial buckled beam under edge thrust
Journal
International Journal of Non-Linear Mechanics
Journal Volume
55
Pages
98-101
Date Issued
2013
Author(s)
Abstract
In this paper we study the deformation evolution of a clamped-clamped beam under edge thrust constrained inside a straight tube. Small-deformation theory is adopted. As the edge thrust decreases gradually, the constrained rod deformation evolves from a point-line-point contact to three-point, two-point, one-point contact, and finally back to straight configuration. According to the small-deformation theory, the one-point-contact deformation is a planar one, while all others are three-dimensional in a shape close to a helix. It is found that the helical two-point-contact deformation "jumps" to planar one-point-contact deformation suddenly. It is argued that this peculiar jump phenomenon is due to the limitation of the small-deformation theory. © 2013 Elsevier Ltd.
Type
other