Research Article | | Peer-Reviewed

Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly

Received: 23 August 2024     Accepted: 19 September 2024     Published: 30 September 2024
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Abstract

As a cross section of square steel pipe is crushed, the upper plate and the lower plate deform inward, and the side plates deform outward from the original square cross section shape. When the press folding line process as deformation induction is applied, the upper plate and the lower plate keep flat, and the side plates are compactly folded inward. This deformation pattern is safe without causing any harm to the surrounding area, and makes it possible to improve impact energy absorption performance by folding side plates as overlapping. Moreover, square steel pipe structures include places as pipes intersect and places to avoid interference with other parts (piping, wiring, fork claws, etc.). In such cases, the current method is to create an opening by cutting off. At that time, the structural strength will decrease, so reinforcing materials are often installed as a countermeasure. On the other hand, if the opening is processed by laterally impact crushing using the press folding line process proposed in this paper, a crushed part will remain, suppressing the decrease in structural strength, and this can be handled without adding reinforcing material to be a smart intersection. This paper shows the findings based on experimental data, FEM (Finite Element Method) results on processing conditions for inward deforming side plates of square steel pipes and evaluation of impact energy absorption performance in laterally impact crushing.

Published in International Journal of Mechanical Engineering and Applications (Volume 12, Issue 4)
DOI 10.11648/j.ijmea.20241204.12
Page(s) 100-117
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), 2024. Published by Science Publishing Group

Keywords

Press Folding Line Process, Impact Energy Absorption, Fem, Deformation Induction, Impact Crushing

References
[1] Japanese Standards Association, Carbon steel square and rectangular tubes for general structure, Japanese Industrial Standard, JIS G 3466: 2021.
[2] Yoshimura, Y., On the Mechanism of a Circular Cylindrical Shell under Axial Compression, TM 1390 (1955), NACA.
[3] Morgan, E. J., Seide, P., Weingarten, V. I., Elastic stability of thin-walled cylindrical and conical shells under combined internal pressure and axial compression, AIAA Journal, vol. 3, issue 6 (1965), pp. 1118-1125,
[4] NASA Space Vehicle Design Criteria, Buckling of Thin Walled Circular Cylinders, NASA-SP-8007, 1965.
[5] Miura, K., Proposition of Pseudo-Cylindrical Concave Polyhedral Shells, ISAS report, Vol. 34, No. 9, 1969, pp. 141-163.
[6] Ushijima, K., Haruyama, S., Fujita, K. and Chen, D., Study on axially crushed cylindrical tubes with grooved surface, Transactions of the Japan Society of Mechanical Engineers, Series A, Vol. 71, No. 707(2005), pp. 1015-1022 (in Japanese).
[7] Nakazawa, Y., Tamura, K., Kusaka, T. and Hojo, M., Effects of cross sectional shape on plastic buckling behavior of thin-walled polygonal shell members, Transactions of the Japan Society of Mechanical Engineers, Series A, Vol.73, No. 727 (2007), pp. 331-337 (in Japanese).
[8] Ushijima, K. and Chen, D., Evaluation of energy absorption capacity for thin-walled tapered tube, International Journal of Automotive Engineering, Vol. 39, No.3 (2008), pp. 77-82 (in Japanese).
[9] Tanaka, Y., Miyata, K., Tasaka, M., Nakazawa, Y. and Tomida, T., Effects of cross sectional shape and material properties on impact deformation behavior of Ultra high strength steel members, Transactions of the Japan Society of Mechanical Engineers, Series A, Vol.78, No. 791 (2012), pp. 955-965 (in Japanese).
[10] Liang, D., Yang, Y., Kong, C., Jing, Y., Zhao, W., Zhao, X. and Hagiwara, I., Reversed torsion type crash energy absorption structure and its inexpensive partially heated torsion manufacturing method, Transactions of the Japan Society of Mechanical Engineers (in Japanese), Vol.87, No.895(2021),
[11] Toi, Y. and Nagayama, T., Finite Element Analysis and Experiments on the Crushing Behavior of Laterally Compressed Steel Tubes, Transactions of the Japan Society of Shipbuilding Engineers, Vol.161 (1989), pp.295-306 (in Japanese).
[12] Livermore Software Technology Corporation, LS-DYNA User’s Manual (Version R7.0), (2014), JSOL Corporation (in Japanese).
[13] Terada, K. and Hagiwara, I., Proposition of folding line processing by press method in origami forming, Transactions of the Japan Society of Mechanical Engineers (in Japanese), Vol.87, No. 898 (2021),
[14] Terada, K., Proposition of press folding line processing that can adjust impact energy absorption by deformation induction, Transactions of the Japan Society of Mechanical Engineers (in Japanese), Vol. 89, No. 920 (2023),
[15] Terada, K. and Hagiwara, I., Effective Folding Line Processing with a Press Method in Origami Forming Using a Low-cost and Simple V-shaped Punch Tool System, International Journal of Mechanical Engineering and Applications, Vol. 9, Issue 6(2021),
[16] Terada, K., Effective Press Folding Line Processing as Deformation Induction for Adjusting Impact Energy Absorption, International Journal of Mechanical Engineering and Applications, Vol. 11, Issue1(2023),
Cite This Article
  • APA Style

    Terada, K. (2024). Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly. International Journal of Mechanical Engineering and Applications, 12(4), 100-117. https://doi.org/10.11648/j.ijmea.20241204.12

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    ACS Style

    Terada, K. Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly. Int. J. Mech. Eng. Appl. 2024, 12(4), 100-117. doi: 10.11648/j.ijmea.20241204.12

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    AMA Style

    Terada K. Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly. Int J Mech Eng Appl. 2024;12(4):100-117. doi: 10.11648/j.ijmea.20241204.12

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  • @article{10.11648/j.ijmea.20241204.12,
      author = {Kosuke Terada},
      title = {Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly
    },
      journal = {International Journal of Mechanical Engineering and Applications},
      volume = {12},
      number = {4},
      pages = {100-117},
      doi = {10.11648/j.ijmea.20241204.12},
      url = {https://doi.org/10.11648/j.ijmea.20241204.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20241204.12},
      abstract = {As a cross section of square steel pipe is crushed, the upper plate and the lower plate deform inward, and the side plates deform outward from the original square cross section shape. When the press folding line process as deformation induction is applied, the upper plate and the lower plate keep flat, and the side plates are compactly folded inward. This deformation pattern is safe without causing any harm to the surrounding area, and makes it possible to improve impact energy absorption performance by folding side plates as overlapping. Moreover, square steel pipe structures include places as pipes intersect and places to avoid interference with other parts (piping, wiring, fork claws, etc.). In such cases, the current method is to create an opening by cutting off. At that time, the structural strength will decrease, so reinforcing materials are often installed as a countermeasure. On the other hand, if the opening is processed by laterally impact crushing using the press folding line process proposed in this paper, a crushed part will remain, suppressing the decrease in structural strength, and this can be handled without adding reinforcing material to be a smart intersection. This paper shows the findings based on experimental data, FEM (Finite Element Method) results on processing conditions for inward deforming side plates of square steel pipes and evaluation of impact energy absorption performance in laterally impact crushing.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Effective Press Folding Line Process as Producing Smart Intersection in Square Steel Pipe Structures by Using Crushed Cross Section Compactly
    
    AU  - Kosuke Terada
    Y1  - 2024/09/30
    PY  - 2024
    N1  - https://doi.org/10.11648/j.ijmea.20241204.12
    DO  - 10.11648/j.ijmea.20241204.12
    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  - 100
    EP  - 117
    PB  - Science Publishing Group
    SN  - 2330-0248
    UR  - https://doi.org/10.11648/j.ijmea.20241204.12
    AB  - As a cross section of square steel pipe is crushed, the upper plate and the lower plate deform inward, and the side plates deform outward from the original square cross section shape. When the press folding line process as deformation induction is applied, the upper plate and the lower plate keep flat, and the side plates are compactly folded inward. This deformation pattern is safe without causing any harm to the surrounding area, and makes it possible to improve impact energy absorption performance by folding side plates as overlapping. Moreover, square steel pipe structures include places as pipes intersect and places to avoid interference with other parts (piping, wiring, fork claws, etc.). In such cases, the current method is to create an opening by cutting off. At that time, the structural strength will decrease, so reinforcing materials are often installed as a countermeasure. On the other hand, if the opening is processed by laterally impact crushing using the press folding line process proposed in this paper, a crushed part will remain, suppressing the decrease in structural strength, and this can be handled without adding reinforcing material to be a smart intersection. This paper shows the findings based on experimental data, FEM (Finite Element Method) results on processing conditions for inward deforming side plates of square steel pipes and evaluation of impact energy absorption performance in laterally impact crushing.
    
    VL  - 12
    IS  - 4
    ER  - 

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Author Information
  • Department of Mechanical Engineering, School of Science and Engineering, Meisei University, Hino-City Tokyo, Japan

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