Journal
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
Volume 202, Issue -, Pages 111-125Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2020.06.021
Keywords
Circular sandwich tube; Splitting; Curling; Energy absorption
Categories
Funding
- NSFC [11872291, 11972281, 11502189, 11572234]
- China Postdoctoral Science Foundation [2018M643621]
- Natural Science Basic Research Plan in Shaanxi Province of China [2020JM-034]
Ask authors/readers for more resources
Axial splitting and curling behaviour of circular sandwich metal tubes with metal foam core is investigated analytically and experimentally. The sandwich tubes split axially and the strips curl outward by prefabricated cracks at the distal end of the specimens. Axial compression experiments of circular sandwich metal tubes are carried out and deformation modes are found. A theoretical model is developed to predict the axial splitting and curling behaviour of the circular sandwich metal tubes including effects of the tearing of the cracks, plastic bending, curling, foam compression and friction. It is shown that the analytical predictions capture the experimental results reasonably. Effects of the tube thickness, foam strength, foam thickness, the number of the prefabricated cracks, and the semi-angle of the die are of vital important in energy absorption devices by the axial splitting and curling of circular sandwich tubes. (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available