Advertisement

An Axi-Asymmetrical Analysis of Circular Flange Connections Subjected to External Bending Moments

  • Toshiyuki Sawa
  • Tsuneshi Morohoshi
  • Akihiro Shimizu
  • Kyouichi Yamamoto

Abstract

In designing bolted joints,it is important to examine the clamping effect (the distribution of contact stress) and to estimate the load factor (the ratio of an increment of bolt axial force to an external load). The clamping force of bolts and an external bending moment are both axi-asymmetrical loads, and no investigations regarding as axi-asymmetrical loads have been performed. In this paper, the clamping effect and the load factor in the case where clamped parts are circular flanges subjected to external bending moments are analyzed as axi-asymmetrical problems using a three-dimensional theory of elasticity. Experiments are carried out concerning the distribution of contact stress and the load factor for the external bending moment(the relationship between an increment/decrement of bolt axial force to an external bending moment). The analytical results are satisfactorily consistent with the experimental ones.

Keywords

Load Factor Contact Stress Bearing Surface Isochromatic Fringe Bolt Hole 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    Bradley,T.L.,Lardner,T.J. and Mikic,B.B.,Bolted Joint Interface Pressure for Thermal Contact Re si stance, Trans.ASME, ser. E, 1971, 38,No. 2,pp 542.Google Scholar
  2. (2).
    Fernlund,I.,Druckverteilung zwiscen Dichtflachen an Verschrauben Flanschen,Konstruction,1970,22,No.6,pp218.Google Scholar
  3. (3).
    Motosh,N., Stress Distribution in Joints of Bolted or Riveted Connections,Trans.ASME,ser.B,1975,97,No.l,ppl57.Google Scholar
  4. (4).
    Yoshimoto, I., Maruyama,K.,Sawa,T.and Nishiguchi N.,The Force Ratio of Bolted Joints,Bulletin of JSME,1977,2 0,No.l41,pp35 7.Google Scholar
  5. (5).
    Sawa,T. and Shiraishi,H.,A Simple Method to Calculate the Force Ratio of Bolted Joints,Bulletin of JSME,1983,26,No.216,ppl088.Google Scholar
  6. (6).
    Tanaka,M. and Yamada, H., Behaviour s of Bolted Joints under External Loads,Trans.Japan Soc. Mech. Enqrs.(in Japanese), 1985, 51,No.466,Ser.C,ppl362.Google Scholar
  7. (7).
    Asai, 0.,Tsukui,K. and Kawamo,K.,Study on High-Strength Bolted End Plate Connections,Trans. Japan Soc. Mech. Enqrs. (in Japanese),1980,46,No.402,Ser.A,ppl58.Google Scholar
  8. (8).
    Pavlov,P.A.,Approximate Calculation for the Flexure with Tension of Flanged Joints of Schaf ts, Rus s. Eng. J., 1976,5 6, No. 10, pp!6.Google Scholar
  9. (9).
    Dreger,H.,Berechnung der Kräfte,Biegemomente und beanspruchungen einer Exzentrich Verspanten und Exzentrich Belasteten Schraube, Draht-Welt, 1979,11,No.l 1,pp497.Google Scholar
  10. (10).
    Sawa,T.,Shiraishi,H., Minakuchi Y. andMaKINOS.,Onthe Characteristics of a Bolted joint Subjected to an External Bending Moment,Bulletin of JSME,1982,2 5,No.201,pp444.Google Scholar
  11. (11).
    Sawa,T.,Taira,Z. and Shiraishi H.,0n the Characteristics of a Bolted Joint Subjected to an External Bending Moment,Bulletin of JSME,1984, 27,No.224,pp348.Google Scholar
  12. (12).
    Sawa,T., Iwata,A.,Kumano,H. and Maruyama,H.,On the Characteristics of Bolted Joints Subjected to Bending Moments,Bulletin of JSME, 1986, 29,No. 247,pp 281.CrossRefGoogle Scholar
  13. (13).
    Yoshino,T. and Utsugi,S.,An Axi-asymmetrical Deformation Analysis of finite Solid Cylinders,1975 Joint JEME-ASME Appl.Mech.Western Conf. paper,1975,ppl9.Google Scholar
  14. (14).
    Sawa,T. and Maruyama K.,0n the Deformation of Bolt Head and Nut in a Bolted Joint,Bulletin of JSME, 1976,19,No.l28,pp203.Google Scholar
  15. (15).
    James W.Dally and William F.Riley, Experimental Stress Analysis, Mcgraw-Hill,Second Edition, 1978,pp 490.Google Scholar

Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • Toshiyuki Sawa
    • 1
  • Tsuneshi Morohoshi
    • 2
  • Akihiro Shimizu
    • 3
  • Kyouichi Yamamoto
    • 4
  1. 1.Department of Mechanical EngineeringYamanashi UniversityKofu,YamanashiJapan
  2. 2.ASK Co.LtdJapan
  3. 3.Epson-Seiko Co.LtdJapan
  4. 4.Mitsubishi Electric Co.LtdJapan

Personalised recommendations