Structural stainless steel requires appropriate recognition of its beneficial properties such as material nonlinearity and significant strain hardening. The recently proposed Continuous Strength Method (CSM) exploits those benefits through a strain based approach for both stocky and slender cross-sections, and is shown to yield a higher level of accuracy and consistency, as well as design efficiency, in the capacity predictions of stainless steel cross-sections. Although there have been extensive and comprehensive studies on SHS, RHS, round tubes and H-sections stubs, but research into cold-formed stainless steel equal-leg angle section stubs remains scarce. In this paper, the scope of the CSM is extended to cover the design of cold-formed stainless steel equal-leg angle section stubs. Developed FE models included material nonlinearities as well as initial geometric imperfections. A comprehensive parametric study has been carried out covering a wide range of slenderness with different cross section geometries for the considered angle stubs. Cross-section resistances obtained from the numerical study were used to assess the performance of the current Continuous Strength Method (DSM) guidelines and EC3 when applied for stainless steel equal-leg angle section stubs; obtained comparisons showed considerable conservatism. A modified design method for cold-formed stainless steel equal-leg angle section stubs is proposed herein following CSM techniques, which provides considerably more accurate predictions for the considered cold-formed stubs. Reliability of the proposed design equations is also presented showing a good agreement with both experimentally and numerically obtained results.
Published in | Science Discovery (Volume 7, Issue 5) |
DOI | 10.11648/j.sd.20190705.21 |
Page(s) | 323-329 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2019. Published by Science Publishing Group |
Stainless Steel, Cold-formed, Equal-leg Angle, The Continuous Strength Method, Cross Section Strength
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APA Style
Jing Yang, Zhoupeng Cai, Hongdong Ran. (2019). The Continuous Strength Method of Cold-formed Stainless Steel Equal-leg Angle Section Stubs. Science Discovery, 7(5), 323-329. https://doi.org/10.11648/j.sd.20190705.21
ACS Style
Jing Yang; Zhoupeng Cai; Hongdong Ran. The Continuous Strength Method of Cold-formed Stainless Steel Equal-leg Angle Section Stubs. Sci. Discov. 2019, 7(5), 323-329. doi: 10.11648/j.sd.20190705.21
AMA Style
Jing Yang, Zhoupeng Cai, Hongdong Ran. The Continuous Strength Method of Cold-formed Stainless Steel Equal-leg Angle Section Stubs. Sci Discov. 2019;7(5):323-329. doi: 10.11648/j.sd.20190705.21
@article{10.11648/j.sd.20190705.21, author = {Jing Yang and Zhoupeng Cai and Hongdong Ran}, title = {The Continuous Strength Method of Cold-formed Stainless Steel Equal-leg Angle Section Stubs}, journal = {Science Discovery}, volume = {7}, number = {5}, pages = {323-329}, doi = {10.11648/j.sd.20190705.21}, url = {https://doi.org/10.11648/j.sd.20190705.21}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20190705.21}, abstract = {Structural stainless steel requires appropriate recognition of its beneficial properties such as material nonlinearity and significant strain hardening. The recently proposed Continuous Strength Method (CSM) exploits those benefits through a strain based approach for both stocky and slender cross-sections, and is shown to yield a higher level of accuracy and consistency, as well as design efficiency, in the capacity predictions of stainless steel cross-sections. Although there have been extensive and comprehensive studies on SHS, RHS, round tubes and H-sections stubs, but research into cold-formed stainless steel equal-leg angle section stubs remains scarce. In this paper, the scope of the CSM is extended to cover the design of cold-formed stainless steel equal-leg angle section stubs. Developed FE models included material nonlinearities as well as initial geometric imperfections. A comprehensive parametric study has been carried out covering a wide range of slenderness with different cross section geometries for the considered angle stubs. Cross-section resistances obtained from the numerical study were used to assess the performance of the current Continuous Strength Method (DSM) guidelines and EC3 when applied for stainless steel equal-leg angle section stubs; obtained comparisons showed considerable conservatism. A modified design method for cold-formed stainless steel equal-leg angle section stubs is proposed herein following CSM techniques, which provides considerably more accurate predictions for the considered cold-formed stubs. Reliability of the proposed design equations is also presented showing a good agreement with both experimentally and numerically obtained results.}, year = {2019} }
TY - JOUR T1 - The Continuous Strength Method of Cold-formed Stainless Steel Equal-leg Angle Section Stubs AU - Jing Yang AU - Zhoupeng Cai AU - Hongdong Ran Y1 - 2019/11/18 PY - 2019 N1 - https://doi.org/10.11648/j.sd.20190705.21 DO - 10.11648/j.sd.20190705.21 T2 - Science Discovery JF - Science Discovery JO - Science Discovery SP - 323 EP - 329 PB - Science Publishing Group SN - 2331-0650 UR - https://doi.org/10.11648/j.sd.20190705.21 AB - Structural stainless steel requires appropriate recognition of its beneficial properties such as material nonlinearity and significant strain hardening. The recently proposed Continuous Strength Method (CSM) exploits those benefits through a strain based approach for both stocky and slender cross-sections, and is shown to yield a higher level of accuracy and consistency, as well as design efficiency, in the capacity predictions of stainless steel cross-sections. Although there have been extensive and comprehensive studies on SHS, RHS, round tubes and H-sections stubs, but research into cold-formed stainless steel equal-leg angle section stubs remains scarce. In this paper, the scope of the CSM is extended to cover the design of cold-formed stainless steel equal-leg angle section stubs. Developed FE models included material nonlinearities as well as initial geometric imperfections. A comprehensive parametric study has been carried out covering a wide range of slenderness with different cross section geometries for the considered angle stubs. Cross-section resistances obtained from the numerical study were used to assess the performance of the current Continuous Strength Method (DSM) guidelines and EC3 when applied for stainless steel equal-leg angle section stubs; obtained comparisons showed considerable conservatism. A modified design method for cold-formed stainless steel equal-leg angle section stubs is proposed herein following CSM techniques, which provides considerably more accurate predictions for the considered cold-formed stubs. Reliability of the proposed design equations is also presented showing a good agreement with both experimentally and numerically obtained results. VL - 7 IS - 5 ER -