Computation of Micro-Strains in Cold Formed Steels- FEA Approach

Assad Anis

doi:doi:10.11648/j.ijmea.20170505.16

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Computation of Micro-Strains in Cold Formed Steels- FEA Approach

Assad Anis

Published in International Journal of Mechanical Engineering and Applications (Volume 5, Issue 5)

Received: 24 December 2016 Accepted: 6 January 2017 Published: 30 October 2017

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Abstract

This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic properties of steel. These simulations were performed for tubes with outer radius to thickness (r_o/t) ratios of 3. In real distortion tests, the direction of force at outer corner of the tube may vary in terms of angle. Therefore, this fact is taken into account while performing simulations. One more aspect is taken into consideration which is related to strain gauge placement during distortion testing. This problem is analyzed by modeling three-dimensional structural tubes and performing linear static analyses to investigate the variations in strains at inner bent section of the tube with different strain gauge locations.

Published in	International Journal of Mechanical Engineering and Applications (Volume 5, Issue 5)
DOI	10.11648/j.ijmea.20170505.16
Page(s)	275-281
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), 2017. Published by Science Publishing Group

Keywords

CFRHS, Finite Element Analysis (FEA), R_o/T Ratio, Distortion Testing

References

[1]	Bäckström, M., Savolainen, M., Ilvonen R. and Laitinen R. In Proceedings of FATIGUE 2002, Stockholm, 2002, 277 – 302.
[2]	Sami Heinilla, Timo Bjork, Gary Marquis, A study of curved crack paths in cold formed corners of high strength structural steels, Proceedings of Crack Paths (CP 2006), Parma Italy 2006.
[3]	Assad Anis, Prediction of Residual Stresses in cold formed corners, Journal of Advanced Science and Engineering Research Vol 2, No 4 December (2012) 252-264, ISSN: 2231-8844.
[4]	Assad Anis, ‘‘Investigation of Stress Concentration Factors in cold formed rectangular hollow steel tubes’’, International Conference on Advanced Modeling and Simulation, 28-30^th November 2011, Islamabad, Pakistan, ISBN:978-8698535-11-7.
[5]	Assad Anis, ‘‘A Finite Element Analysis Approach to predict the stress concentration factors in Cold Formed Corners’’, International Journal of Mechanical & Mechatronics Engineering, IJMME-IJENS Vol:12, pg 94-98, Issue: 04 ISSN:2227-2771.
[6]	Sami Heinilla, Gary B. Marquis, Timo Bjork, ‘‘Observations on fatigue crack paths in corners of cold formed high-strength steel tubes’’. Engineering Fracture Mechanics, Vol 75, issue 3-4, March 2008, Pages 833-844.
[7]	Mohamed Dabaon, Ehab Ellobody, Khaled Ramzy, Experimental investigation of built-up-cold formed steel section battened column, Thin Walled Structures 92 (2015), 137-145.
[8]	Jason D. Gollarando, G. Avramovic Cingara, G. Palumbo, U. Erb, Microstrain and growth fault structures in electrodeposited nanocrystalline Ni and Ni-Fe alloys, Journal of Materials Science 48(19):6689-6699, October 2013.
[9]	X. L. Xu. Y. Z. Chen, F. Liu, Study of microstrain in rapidly solidified structures of hypercooled Co₈₀Pd₂₀ alloys, Material Science & Technology, Vol 29, 2013, Issue 1.
[10]	Cheng Yu, Benjamin W. Schafer, Distortional Buckling Tests on Cold-Formed Steel Beams Journal of Structural Engineering, Volume 132 Issue 4 - April 2006.
[11]	Sammy C. W. Lau and Gregory, Hancock, Distortional Buckling Tests of Cold-Formed Channel Sections, Ninth International Specialty Conference on Cold-Formed Steel Structures St. Louis, Missouri, U. S. A., November 8-9, 1988.
[12]	R. Kandasamy, R. Thenmozhi, L. S. Jeyagopal, Flexural-Torsional Buckling Tests of Cold-Formed Lipped Channel Beams Under Restrained Boundary Conditions, International Journal of Engineering and Technology (IJET), ISSN: 0975-4024, Vol 6 No 2 Apr-May 2014.
[13]	Thomas H.-K. Kang, Kenneth A. Biggs, and Chris Ramseyer, Buckling Modes of Cold-Formed Steel Columns, IACSIT International Journal of Engineering and Technology, Vol. 5, No. 4, August 2013.

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APA Style

Assad Anis. (2017). Computation of Micro-Strains in Cold Formed Steels- FEA Approach. International Journal of Mechanical Engineering and Applications, 5(5), 275-281. https://doi.org/10.11648/j.ijmea.20170505.16

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ACS Style

Assad Anis. Computation of Micro-Strains in Cold Formed Steels- FEA Approach. Int. J. Mech. Eng. Appl. 2017, 5(5), 275-281. doi: 10.11648/j.ijmea.20170505.16

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AMA Style

Assad Anis. Computation of Micro-Strains in Cold Formed Steels- FEA Approach. Int J Mech Eng Appl. 2017;5(5):275-281. doi: 10.11648/j.ijmea.20170505.16

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@article{10.11648/j.ijmea.20170505.16,
  author = {Assad Anis},
  title = {Computation of Micro-Strains in Cold Formed Steels- FEA Approach},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {5},
  number = {5},
  pages = {275-281},
  doi = {10.11648/j.ijmea.20170505.16},
  url = {https://doi.org/10.11648/j.ijmea.20170505.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20170505.16},
  abstract = {This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic properties of steel. These simulations were performed for tubes with outer radius to thickness (ro/t) ratios of 3. In real distortion tests, the direction of force at outer corner of the tube may vary in terms of angle. Therefore, this fact is taken into account while performing simulations. One more aspect is taken into consideration which is related to strain gauge placement during distortion testing. This problem is analyzed by modeling three-dimensional structural tubes and performing linear static analyses to investigate the variations in strains at inner bent section of the tube with different strain gauge locations.},
 year = {2017}
}

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TY  - JOUR
T1  - Computation of Micro-Strains in Cold Formed Steels- FEA Approach
AU  - Assad Anis
Y1  - 2017/10/30
PY  - 2017
N1  - https://doi.org/10.11648/j.ijmea.20170505.16
DO  - 10.11648/j.ijmea.20170505.16
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  - 275
EP  - 281
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20170505.16
AB  - This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic properties of steel. These simulations were performed for tubes with outer radius to thickness (ro/t) ratios of 3. In real distortion tests, the direction of force at outer corner of the tube may vary in terms of angle. Therefore, this fact is taken into account while performing simulations. One more aspect is taken into consideration which is related to strain gauge placement during distortion testing. This problem is analyzed by modeling three-dimensional structural tubes and performing linear static analyses to investigate the variations in strains at inner bent section of the tube with different strain gauge locations.
VL  - 5
IS  - 5
ER  -

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Author Information

Assad Anis

Department of Automotive & Marine Engineering, NED University of Engineering & Technology, Karachi, Pakistan

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APA Style

Assad Anis. (2017). Computation of Micro-Strains in Cold Formed Steels- FEA Approach. International Journal of Mechanical Engineering and Applications, 5(5), 275-281. https://doi.org/10.11648/j.ijmea.20170505.16

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ACS Style

Assad Anis. Computation of Micro-Strains in Cold Formed Steels- FEA Approach. Int. J. Mech. Eng. Appl. 2017, 5(5), 275-281. doi: 10.11648/j.ijmea.20170505.16

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AMA Style

Assad Anis. Computation of Micro-Strains in Cold Formed Steels- FEA Approach. Int J Mech Eng Appl. 2017;5(5):275-281. doi: 10.11648/j.ijmea.20170505.16

Copy | Download

@article{10.11648/j.ijmea.20170505.16,
  author = {Assad Anis},
  title = {Computation of Micro-Strains in Cold Formed Steels- FEA Approach},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {5},
  number = {5},
  pages = {275-281},
  doi = {10.11648/j.ijmea.20170505.16},
  url = {https://doi.org/10.11648/j.ijmea.20170505.16},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20170505.16},
  abstract = {This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic properties of steel. These simulations were performed for tubes with outer radius to thickness (ro/t) ratios of 3. In real distortion tests, the direction of force at outer corner of the tube may vary in terms of angle. Therefore, this fact is taken into account while performing simulations. One more aspect is taken into consideration which is related to strain gauge placement during distortion testing. This problem is analyzed by modeling three-dimensional structural tubes and performing linear static analyses to investigate the variations in strains at inner bent section of the tube with different strain gauge locations.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Computation of Micro-Strains in Cold Formed Steels- FEA Approach
AU  - Assad Anis
Y1  - 2017/10/30
PY  - 2017
N1  - https://doi.org/10.11648/j.ijmea.20170505.16
DO  - 10.11648/j.ijmea.20170505.16
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  - 275
EP  - 281
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20170505.16
AB  - This paper describes the computations of micro-strains at inner corner of cold formed rectangular hollow sections (CFRHS) made up of structural steels using finite element analysis. In order to obtain the micro-strains, distortion test is simulated by modeling two-dimensional structural steel tubes in ANSYS software. Two dimensional linear static analyses are performed by defining elastic properties of steel. These simulations were performed for tubes with outer radius to thickness (ro/t) ratios of 3. In real distortion tests, the direction of force at outer corner of the tube may vary in terms of angle. Therefore, this fact is taken into account while performing simulations. One more aspect is taken into consideration which is related to strain gauge placement during distortion testing. This problem is analyzed by modeling three-dimensional structural tubes and performing linear static analyses to investigate the variations in strains at inner bent section of the tube with different strain gauge locations.
VL  - 5
IS  - 5
ER  -

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