TY - GEN
T1 - Cold-Formed Section Residual Stress Determination Using Cos-Alpha X-Ray Diffraction Technique and Elastic Stress – Strain Relations
AU - Swastika, Tri Widya
AU - Purnomo, Heru
AU - Apriansyah, Rifky
AU - Muslih, Muhammad Refai
N1 - Publisher Copyright:
© 2024 American Institute of Physics Inc.. All rights reserved.
PY - 2024/2/15
Y1 - 2024/2/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85185580614&partnerID=8YFLogxK
U2 - 10.1063/5.0193370
DO - 10.1063/5.0193370
M3 - Conference contribution
AN - SCOPUS:85185580614
T3 - AIP Conference Proceedings
BT - AIP Conference Proceedings
A2 - Wisnubroto, Djarot Sulistio
A2 - Antariksawan, Anhar Riza
A2 - Syaifudin, Mukh
A2 - Santoso, Muhayatun
A2 - Mulyani, Emy
A2 - Yusuf, Muhammad
PB - American Institute of Physics Inc.
T2 - 2022 International Conference on Nuclear Science, Technology, and Applications, ICONSTA 2022 in conjunction with the 1st Annual Meeting of HIMNI
Y2 - 23 November 2022 through 24 November 2022
ER -