Session Start Date

11-7-2018

Session End Date

11-8-2018

Abstract

In the current research, distortional buckling of cold-formed stainless steel open-section beams was investigated. Four-point bending tests of eight C-section stainless steel beams, made of S30401 alloy, were carried out with global and local buckling precluded by careful design of specimen and test rigs. A detailed finite element model based on ABAQUS was developed and verified against test data. Parametric study was carried out with the verified model, covering four types of sections (C, Z, SupaCee, and SupaZed), three stainless steel alloys (S30401, S44330, S32101), and a series of section slenderness. A convenient method to identify distortional buckling point in either experimental or numerical study was discussed. Existing design formula for stainless steel and steel structure were assessed with the available data. Revised formula based on Direct Strength Method was proposed.

Department(s)

Civil, Architectural and Environmental Engineering

Meeting Name

Wei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018

Publisher

Missouri University of Science and Technology

Publication Date

11-7-2018

Document Version

Final Version

Rights

© 2018 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

Share

 
COinS
 
Nov 7th, 12:00 AM Nov 8th, 12:00 AM

Study on Distortional Buckling of Cold-Formed Stainless Steel Beams

In the current research, distortional buckling of cold-formed stainless steel open-section beams was investigated. Four-point bending tests of eight C-section stainless steel beams, made of S30401 alloy, were carried out with global and local buckling precluded by careful design of specimen and test rigs. A detailed finite element model based on ABAQUS was developed and verified against test data. Parametric study was carried out with the verified model, covering four types of sections (C, Z, SupaCee, and SupaZed), three stainless steel alloys (S30401, S44330, S32101), and a series of section slenderness. A convenient method to identify distortional buckling point in either experimental or numerical study was discussed. Existing design formula for stainless steel and steel structure were assessed with the available data. Revised formula based on Direct Strength Method was proposed.