In this paper the ratchetting behavior of four pairs of stainless steel, long and short radius welding elbows is studied under conditions of steady internal pressure and in-plane, resonant dynamic moments that simulated seismic excitations. The finite element analysis with the nonlinear kinematic hardening model has been used to evaluate ratchetting behavior of the elbow under mentioned loading condition. Stress–strain data and material parameters have been obtained from several stabilized cycles of specimens that are subjected to symmetric strain cycles. The results show that the maximum ratcheting strain occurred mainly in the hoop direction at flanks. Ratcheting strain rate increases with increase of the bending loading level at the constant internal pressure. The results show that the FE method gives over estimated values comparing with the experimental data.
| Published in | International Journal of Mechanical Engineering and Applications (Volume 2, Issue 2) |
| DOI | 10.11648/j.ijmea.20140202.12 |
| Page(s) | 31-37 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
Ratchetting, Pressurized Elbows, Cyclic Bending Moment, Strain Hardening Model, Stainless Steel
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APA Style
S. J. Zakavi, V. Golshan. (2014). The Effect of Dynamic Bending Moments on the Ratchetting Behavior of Stainless Steel Pressurized Piping Elbows. International Journal of Mechanical Engineering and Applications, 2(2), 31-37. https://doi.org/10.11648/j.ijmea.20140202.12
ACS Style
S. J. Zakavi; V. Golshan. The Effect of Dynamic Bending Moments on the Ratchetting Behavior of Stainless Steel Pressurized Piping Elbows. Int. J. Mech. Eng. Appl. 2014, 2(2), 31-37. doi: 10.11648/j.ijmea.20140202.12
AMA Style
S. J. Zakavi, V. Golshan. The Effect of Dynamic Bending Moments on the Ratchetting Behavior of Stainless Steel Pressurized Piping Elbows. Int J Mech Eng Appl. 2014;2(2):31-37. doi: 10.11648/j.ijmea.20140202.12
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Download@article{10.11648/j.ijmea.20140202.12,
author = {S. J. Zakavi and V. Golshan},
title = {The Effect of Dynamic Bending Moments on the Ratchetting Behavior of Stainless Steel Pressurized Piping Elbows},
journal = {International Journal of Mechanical Engineering and Applications},
volume = {2},
number = {2},
pages = {31-37},
doi = {10.11648/j.ijmea.20140202.12},
url = {https://doi.org/10.11648/j.ijmea.20140202.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20140202.12},
abstract = {In this paper the ratchetting behavior of four pairs of stainless steel, long and short radius welding elbows is studied under conditions of steady internal pressure and in-plane, resonant dynamic moments that simulated seismic excitations. The finite element analysis with the nonlinear kinematic hardening model has been used to evaluate ratchetting behavior of the elbow under mentioned loading condition. Stress–strain data and material parameters have been obtained from several stabilized cycles of specimens that are subjected to symmetric strain cycles. The results show that the maximum ratcheting strain occurred mainly in the hoop direction at flanks. Ratcheting strain rate increases with increase of the bending loading level at the constant internal pressure. The results show that the FE method gives over estimated values comparing with the experimental data.},
year = {2014}
}
TY - JOUR T1 - The Effect of Dynamic Bending Moments on the Ratchetting Behavior of Stainless Steel Pressurized Piping Elbows AU - S. J. Zakavi AU - V. Golshan Y1 - 2014/05/30 PY - 2014 N1 - https://doi.org/10.11648/j.ijmea.20140202.12 DO - 10.11648/j.ijmea.20140202.12 T2 - International Journal of Mechanical Engineering and Applications JF - International Journal of Mechanical Engineering and Applications JO - International Journal of Mechanical Engineering and Applications SP - 31 EP - 37 PB - Science Publishing Group SN - 2330-0248 UR - https://doi.org/10.11648/j.ijmea.20140202.12 AB - In this paper the ratchetting behavior of four pairs of stainless steel, long and short radius welding elbows is studied under conditions of steady internal pressure and in-plane, resonant dynamic moments that simulated seismic excitations. The finite element analysis with the nonlinear kinematic hardening model has been used to evaluate ratchetting behavior of the elbow under mentioned loading condition. Stress–strain data and material parameters have been obtained from several stabilized cycles of specimens that are subjected to symmetric strain cycles. The results show that the maximum ratcheting strain occurred mainly in the hoop direction at flanks. Ratcheting strain rate increases with increase of the bending loading level at the constant internal pressure. The results show that the FE method gives over estimated values comparing with the experimental data. VL - 2 IS - 2 ER -
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