Volume 89, Number 4, February 2010
|Number of page(s)||4|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||08 March 2010|
Fragmentation of an axially impacted slender rod
Computational Science and Engineering, University of Illinois at Urbana-Champaign - Urbana, IL 61801, USA
2 Department of Aerospace Engineering, University of Michigan - Ann Arbor, MI 48109, USA
Corresponding author: firstname.lastname@example.org
Accepted: 4 February 2010
Motivated by experimental results on the dynamic buckling and fragmentation of a vertical column impacted by a falling mass, results from an analytical model for dynamic buckling which considers the dynamic interaction between the axial column deformation and the out-of-plane buckling displacements are used to interpret the fragmentation process and the resulting fragment lengths. It is shown that a critical time exists for the rod to undergo fragmentation. At this critical time, the rod deforms in a modulated pattern of waves, setting up the stage for the ensuing fragmentation as a result of induced large curvatures that exceed the critical bending strain of the rod material. The resulting fragment length distributions, which show two characteristics peaks at and , where λ is a characteristic half-wavelength, are found to compare favorably with the experimental results.
PACS: 62.20.mq – Buckling / 62.20.mm – Fracture / 62.30.+d – Mechanical and elastic waves; vibrations
© EPLA, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.