Residual Stress Evaluation on Cold-Formed Steel C-Section by X-Ray Diffraction

T. Widya Swastika, Heru Purnomo, M. R. Muslih, R. Apriansyah, Henki W. Ashadi, Mulia Orientilize

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It is known that the existence of residual stress in cold-formed steel profile plays an important role in determining the nominal strength of the profile in resisting the external forces. Ignoring the residual stress will be very risky due to the serviceability and ultimate strength requirements of the structure constructed from these profiles. This study focuses on the determination of residual stress from local manufacture cold-formed steel lip channel C-sections which are widely used today for the construction of residential roof truss. Two types of cold-formed steel from two different manufactures have been investigated from the residual stresses in the cold-formed lip channel C-sections and the flat steel sheets before being formed into the lip channel C-section by X-Ray Diffraction apparatus. The results show that the tension stress is measured on the flanges surface, while the compression stress is found in the web surface. The residual stress in the bent area of lip channel C-section changes significantly, while the residual stress in flat steel sheet experiences compression. In addition, the residual stress in PC-065-1 specimen is around 200 MPa, while it is about 150 MPa in LB-065-1, whereas for the flat steel sheet specimen of PC-065-1 it is around 100 MPa, while in LB-065-1 it is as high as 240 MPa.

Original languageEnglish
Title of host publicationProceedings of the 5th International Conference on Rehabilitation and Maintenance in Civil Engineering - ICRMCE 2021
EditorsStefanus Adi Kristiawan, Buntara S. Gan, Mohamed Shahin, Akanshu Sharma
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1057-1066
Number of pages10
ISBN (Print)9789811693472
DOIs
Publication statusPublished - 2023
Event5th International Conference on Rehabilitation and Maintenance in Civil Engineering, ICRMCE 2021 - Virtual, Online
Duration: 8 Jul 20219 Jul 2021

Publication series

NameLecture Notes in Civil Engineering
Volume225
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference5th International Conference on Rehabilitation and Maintenance in Civil Engineering, ICRMCE 2021
CityVirtual, Online
Period8/07/219/07/21

Keywords

  • Cold-formed steel
  • Residual stress
  • X-Ray diffraction

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