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ARTICLE
Numerical study on the dynamic response of a concrete filled steel tubular long column under axial impact by a rigid-body
| 1 | Beijing No. 3 Construction Engineering Co., Ltd., China |
| 2 | Beijing Mechanized Construction Group Co., Ltd, Beijing, China |
| 3 | China Agricultural University, Department of Civil Engineering, Beijing, China |
| 4 | Beijing Construction Engineering Group Co., Ltd, Beijing, China |
CORRESPONDING AUTHOR
Submission date: 2021-03-08
Final revision date: 2021-04-29
Acceptance date: 2021-05-17
Online publication date: 2021-10-01
Publication date: 2021-10-20
Journal of Theoretical and Applied Mechanics 2021;59(4):551–563
KEYWORDS
TOPICS
solid mechanicsmechanics of materialscomputational mechanicsexperimental mechanicsstructures mechanics
ABSTRACT
In this study, refined finite element models of concrete filled steel tubular long columns with
length diameter ratio (L/D) of 50 were established, and their dynamic responses under a
rigid-body impact were explored. It is found that the form of impact load is only related to
and can be predicted from the impact velocity of the rigid-body. The change of axial stress
and strain with time is synchronous with that of the impact load. Furthermore, the variation
characteristics of axial stress and strain with time are mainly related to the initial velocity
of the rigid-body.
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