TY - JOUR
T1 - Numerical simulation and design of stainless steel hollow flange beams under shear
AU - Dissanayake Mudiyanselage, Madhushan
AU - Zhou, C.
AU - Poologanathan, Keerthan
AU - Gunalan, Shanmuganathan
AU - Tsavdaridis, K.d.
AU - Guss, J.
N1 - Funding Information:
Authors would like to thank Northumbria University for financial support and providing the necessary research facilities to conduct this research.
Publisher Copyright:
© 2020 Elsevier Ltd
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - Stainless steel offers a range of benefits over conventional carbon steel in structural applications. This paper presents the detailed numerical modelling of shear response of cold-formed stainless steel hollow flange sections using finite element software package, Abaqus. The effect of geometric parameters such as section height and section thickness, and the influence of different steel grades were investigated following the validation of finite element models. From numerical results, the formation of diagonal tension fields can be clearly observed in the webs of rectangular hollow flange sections while more even distribution of the stresses in the webs is seen in triangular hollow flange sections. Further, a plastic hinge type mechanism is formed in triangular flanges at the post-failure region. The evaluation of Eurocode 3 and the direct strength method shear design provisions for stainless steel hollow flange beams is found to be significantly conservative. Therefore, modified provisions were proposed and the comparison of those with finite element results confirmed the accurate and consistent shear resistance predictions over the codified provisions.
AB - Stainless steel offers a range of benefits over conventional carbon steel in structural applications. This paper presents the detailed numerical modelling of shear response of cold-formed stainless steel hollow flange sections using finite element software package, Abaqus. The effect of geometric parameters such as section height and section thickness, and the influence of different steel grades were investigated following the validation of finite element models. From numerical results, the formation of diagonal tension fields can be clearly observed in the webs of rectangular hollow flange sections while more even distribution of the stresses in the webs is seen in triangular hollow flange sections. Further, a plastic hinge type mechanism is formed in triangular flanges at the post-failure region. The evaluation of Eurocode 3 and the direct strength method shear design provisions for stainless steel hollow flange beams is found to be significantly conservative. Therefore, modified provisions were proposed and the comparison of those with finite element results confirmed the accurate and consistent shear resistance predictions over the codified provisions.
KW - Cold-formed stainless steel
KW - Direct strength method
KW - Eurocode 3
KW - Finite element modelling
KW - Hollow flange sections
KW - Shear
UR - http://www.scopus.com/inward/record.url?scp=85093979718&partnerID=8YFLogxK
U2 - 10.1016/j.jcsr.2020.106414
DO - 10.1016/j.jcsr.2020.106414
M3 - Article
SN - 0143-974X
VL - 176
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
M1 - 106414
ER -