Microstructure, mechanical properties and cross‐sectional behaviour of additively manufactured stainless steel cylindrical shells
Author(s)
Zhang, Ruizhi
Mohsen, Amraei
Piili, Heidi
Gardner, Leroy
Type
Conference Paper
Abstract
Powder bed fusion (PBF) is an additive manufacturing method that enables complex metallic components to be manufactured with high precision. The microstructure, mechanical properties and cross-sectional behaviour of PBF additively manufactured stainless steel circular hollow sections are investigated through experiments in this paper, with a view to applications in construction. The experimental programme included tensile coupon tests, microstructural characterisation, initial geometric imperfection measurements and compression tests on PBF 316L stainless steel cylindrical shells with large diameter-to-thickness (D/t) ratios. Advanced measurement methods – 3D laser scanning and digital image correlation, were employed to measure the specimen geometries prior to testing and deformation fields during testing, respectively. The possible anisotropy in mechanical properties was examined through tensile coupon tests and correlated with the underlying microstructural and textural features. Compression tests were performed to investigate the resistance against local buckling of thin-walled cylindrical shells produced by PBF. All cylindrical shells buckled below their yield loads with a chequerboard failure mode and revealed the anticipated trend of reducing capacity relative to the yield load with increasing local slenderness, reflecting the increasing susceptibility to local buckling.
Date Issued
2022-09-01
Date Acceptance
2022-06-03
Citation
ce/papers, 2022, 5 (4), pp.568-573
ISSN
2509-7075
Publisher
Ernst und Sohn
Start Page
568
End Page
573
Journal / Book Title
ce/papers
Volume
5
Issue
4
Copyright Statement
© 2022 The Authors. Published by Ernst & Sohn GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Identifier
10.1002/cepa.
Source
SDSS 2022 - The International Colloquium on Stability and Ductility of Steel Structures
Subjects
0901 Aerospace Engineering
0905 Civil Engineering
0913 Mechanical Engineering
Civil Engineering
Publication Status
Published
Start Date
2022-09-14
Finish Date
2022-09-16
Coverage Spatial
Aveiro, Portugal
Date Publish Online
2022-09-14