Cold-Formed Section Residual Stress Determination Using Cos-Alpha X-Ray Diffraction Technique and Elastic Stress – Strain Relations

Tri Widya Swastika, Heru Purnomo, Rifky Apriansyah, Muhammad Refai Muslih

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

Abstract

Regarding the use of thin steel profiles in housing construction, knowledge of residual stresses from this type of profile will give a better understanding to civil engineers in using it. In this study, a special X-Ray Diffraction apparatus for residual stress measurement with cos-alpha method had been used. This apparatus has measured transversal residual stresses at two kinds of decoated thin profiles coming from two different manufactures. They are lipped channel cold-formed steel section which have the same height and thickness but have different rib positions. Those measurements gave stress data using elastic stress-strain relations, and those stress data, longitudinal residual stresses were calculated. Longitudinal residual stresses measured with cos alpha XRD technique are then compared with those obtained from the calculation. Both specimens showed similar patterns of stresses along the flat surface of the profiles compared to those measured, but calculated stresses are relatively lower than those directly measured by cos alpha XRD technique. The pattern of calculated residual stresses at profile discontinuities are not always like that of measured stress. Even though one of the specimens shows stress pattern with a mediocre degree of similarity to that of measured at those locations. Using statistical Pearson coefficient of correlation, the cross-sectional calculated stress pattern from both profiles confirmed their degree of similarities against the measured stress.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
EditorsDjarot Sulistio Wisnubroto, Anhar Riza Antariksawan, Mukh Syaifudin, Muhayatun Santoso, Emy Mulyani, Muhammad Yusuf
PublisherAmerican Institute of Physics Inc.
Edition1
ISBN (Electronic)9780735448292
DOIs
Publication statusPublished - 15 Feb 2024
Event2022 International Conference on Nuclear Science, Technology, and Applications, ICONSTA 2022 in conjunction with the 1st Annual Meeting of HIMNI - Tangerang Selatan, Indonesia
Duration: 23 Nov 202224 Nov 2022

Publication series

NameAIP Conference Proceedings
Number1
Volume2967
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2022 International Conference on Nuclear Science, Technology, and Applications, ICONSTA 2022 in conjunction with the 1st Annual Meeting of HIMNI
Country/TerritoryIndonesia
CityTangerang Selatan
Period23/11/2224/11/22

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