Laser-welded stainless steel I-sections: Residual stress measurements and column buckling tests

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Laser-welded stainless steel I-sections: Residual stress measurements and column buckling tests. / Gardner, Leroy; Bu, Yidu; Theofanous, Marios.

In: Engineering Structures, Vol. 127, 15.09.2016, p. 536-548.

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@article{9ea1242c91e14b59ac2b4ab46b43bbbe,
title = "Laser-welded stainless steel I-sections: Residual stress measurements and column buckling tests",
abstract = "Laser-welding is a high precision fabrication process suitable for joining a wide range of steels and stainless steels. Laser-welded structural stainless steel members, for which there are currently little experimental data owing to their recent introduction to the construction industry, are the focus of the present study. To address the lack of test data and to investigate their structural response, a total of 9 stub column tests and 22 flexural buckling tests (14 buckling about the minor axis and 8 about the major axis) have been performed on laser-welded austenitic stainless steel I-section members. Complementarytensile coupon tests, initial geometric imperfection measurements, and residual stress measurements have also been carried out and are reported herein. Based on the results obtained, a representative residual stress pattern is proposed, the design provisions of Eurocode 3 Part 1.4 and the continuous strength method are assessed, and column buckling curves for laser-welded stainless steel I-section members are recommended.",
keywords = "Buckling, Column tests, Compression, Experiments, Laser-welding, Residual stress, Stainless steel, Welding",
author = "Leroy Gardner and Yidu Bu and Marios Theofanous",
year = "2016",
month = sep,
day = "15",
doi = "10.1016/j.engstruct.2016.08.057",
language = "English",
volume = "127",
pages = "536--548",
journal = "Engineering Structures",
issn = "0141-0296",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Laser-welded stainless steel I-sections: Residual stress measurements and column buckling tests

AU - Gardner, Leroy

AU - Bu, Yidu

AU - Theofanous, Marios

PY - 2016/9/15

Y1 - 2016/9/15

N2 - Laser-welding is a high precision fabrication process suitable for joining a wide range of steels and stainless steels. Laser-welded structural stainless steel members, for which there are currently little experimental data owing to their recent introduction to the construction industry, are the focus of the present study. To address the lack of test data and to investigate their structural response, a total of 9 stub column tests and 22 flexural buckling tests (14 buckling about the minor axis and 8 about the major axis) have been performed on laser-welded austenitic stainless steel I-section members. Complementarytensile coupon tests, initial geometric imperfection measurements, and residual stress measurements have also been carried out and are reported herein. Based on the results obtained, a representative residual stress pattern is proposed, the design provisions of Eurocode 3 Part 1.4 and the continuous strength method are assessed, and column buckling curves for laser-welded stainless steel I-section members are recommended.

AB - Laser-welding is a high precision fabrication process suitable for joining a wide range of steels and stainless steels. Laser-welded structural stainless steel members, for which there are currently little experimental data owing to their recent introduction to the construction industry, are the focus of the present study. To address the lack of test data and to investigate their structural response, a total of 9 stub column tests and 22 flexural buckling tests (14 buckling about the minor axis and 8 about the major axis) have been performed on laser-welded austenitic stainless steel I-section members. Complementarytensile coupon tests, initial geometric imperfection measurements, and residual stress measurements have also been carried out and are reported herein. Based on the results obtained, a representative residual stress pattern is proposed, the design provisions of Eurocode 3 Part 1.4 and the continuous strength method are assessed, and column buckling curves for laser-welded stainless steel I-section members are recommended.

KW - Buckling

KW - Column tests

KW - Compression

KW - Experiments

KW - Laser-welding

KW - Residual stress

KW - Stainless steel

KW - Welding

U2 - 10.1016/j.engstruct.2016.08.057

DO - 10.1016/j.engstruct.2016.08.057

M3 - Article

VL - 127

SP - 536

EP - 548

JO - Engineering Structures

JF - Engineering Structures

SN - 0141-0296

ER -