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Cross-section behaviour and design of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents experimental and numerical investigations into the cross-section behaviour and resistance of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment. An experimental programme, including initial local geometric imperfection measurements and ten major-axis eccentric compression tests, was firstly conducted, with the test setup, procedures and results reported in detail. This was followed by a numerical modelling programme, where finite element models were developed and validated against the major-axis eccentric compression test results and then adopted to conduct parametric studies to expand the test data pool over a wider range of cross-section dimensions and loading combinations. Based on the obtained test and numerical data, the design interaction curves for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative resistance predictions, due to the conservative bending end point and inefficient linear shape of the design interaction curve. New design interaction curves were also developed and shown to offer more accurate and consistent resistance predictions for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment than the codified design interaction curves.
Highlights The local buckling of ferritic stainless steel channel sections under major-axis combined loading was studied. Ten major-axis eccentric compression tests were carried out. FE models were developed to simulate the test results and then adopted to conduct parametric studies. The codified design interaction curves were evaluated, with shortcomings highlighted. New improved design interaction curves were proposed.
Cross-section behaviour and design of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents experimental and numerical investigations into the cross-section behaviour and resistance of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment. An experimental programme, including initial local geometric imperfection measurements and ten major-axis eccentric compression tests, was firstly conducted, with the test setup, procedures and results reported in detail. This was followed by a numerical modelling programme, where finite element models were developed and validated against the major-axis eccentric compression test results and then adopted to conduct parametric studies to expand the test data pool over a wider range of cross-section dimensions and loading combinations. Based on the obtained test and numerical data, the design interaction curves for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative resistance predictions, due to the conservative bending end point and inefficient linear shape of the design interaction curve. New design interaction curves were also developed and shown to offer more accurate and consistent resistance predictions for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment than the codified design interaction curves.
Highlights The local buckling of ferritic stainless steel channel sections under major-axis combined loading was studied. Ten major-axis eccentric compression tests were carried out. FE models were developed to simulate the test results and then adopted to conduct parametric studies. The codified design interaction curves were evaluated, with shortcomings highlighted. New improved design interaction curves were proposed.
Cross-section behaviour and design of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents experimental and numerical investigations into the cross-section behaviour and resistance of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment. An experimental programme, including initial local geometric imperfection measurements and ten major-axis eccentric compression tests, was firstly conducted, with the test setup, procedures and results reported in detail. This was followed by a numerical modelling programme, where finite element models were developed and validated against the major-axis eccentric compression test results and then adopted to conduct parametric studies to expand the test data pool over a wider range of cross-section dimensions and loading combinations. Based on the obtained test and numerical data, the design interaction curves for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative resistance predictions, due to the conservative bending end point and inefficient linear shape of the design interaction curve. New design interaction curves were also developed and shown to offer more accurate and consistent resistance predictions for press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment than the codified design interaction curves.
Highlights The local buckling of ferritic stainless steel channel sections under major-axis combined loading was studied. Ten major-axis eccentric compression tests were carried out. FE models were developed to simulate the test results and then adopted to conduct parametric studies. The codified design interaction curves were evaluated, with shortcomings highlighted. New improved design interaction curves were proposed.
Cross-section behaviour and design of press-braked ferritic stainless steel channel sections under combined compression and major-axis bending moment
Li, Shuai (Autor:in) / Liang, Yating (Autor:in) / Zhao, Ou (Autor:in)
Thin-Walled Structures ; 188
10.04.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Behaviour of stainless steel press-braked channel sections under compression
| British Library Online Contents | 2017
Behaviour of stainless steel press-braked channel sections under compression
| Online Contents | 2017
Behaviour of stainless steel press-braked channel sections under compression
| British Library Online Contents | 2017