Imperial College London
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Dr Adam Jan Sadowski

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 3065a.sadowski Website

 
 
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Location

 

318Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rotter:2016:10.1016/j.istruc.2016.11.004,
author = {Rotter, JM and Sadowski, AJ},
doi = {10.1016/j.istruc.2016.11.004},
journal = {Structures},
pages = {30--38},
title = {Full plastic resistance of tubes under bending and axial force: exact treatment and approximations},
url = {http://dx.doi.org/10.1016/j.istruc.2016.11.004},
volume = {10},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The full plastic resistance under a combination of bending and axial force of tubes of all  possible  wall  thicknesses,  from  thin  cylinders to  circular  solid  sections,  does  not ever  seem  to  have  been  thoroughly  studied,  despite the  fact  that  this  is  a  relatively simple analysis.  The first part of this paper presents a formal analysis of the state of full plasticity under longitudinal stresses in a right circular tube of any thickness free of  cross-section  distortions.    The  derivation  leads  to  relatively  complicated  algebraic expressions which are unsuitable for design guides and standards, so the chief purpose of this paper is to devise suitably accurate but simple empirical descriptions that give quite precise values for the state of full plasticity whilst avoiding the complexity of a formal exact analysis.  The accuracy of each approximation is demonstrated.  The two limiting cases of a thin tube (cylindrical shell) and circular solid section are shown to be simple special cases.  The  approximate  expressions  are  particularly  useful  for  the  definition  of  the  full plastic  condition  in  tension  members  subject  to  small  bending  actions,  but  also applicable to all structural members and steel building structures standards, as well as to  standards  on  thin  shells  where  they  provide  the full  plastic  reference  resistance.  These  expressions  are  also  useful  because  they  give  simple  definitions  of  the orientation of the plastic strain vector, which can assist in the development of analyses of the plastic collapse of arches and axially restrained members under bending.
AU  - Rotter,JM
AU  - Sadowski,AJ
DO  - 10.1016/j.istruc.2016.11.004
EP  - 38
PY  - 2016///
SN  - 2352-0124
SP  - 30
TI  - Full plastic resistance of tubes under bending and axial force: exact treatment and approximations
T2  - Structures
UR  - http://dx.doi.org/10.1016/j.istruc.2016.11.004
UR  - http://hdl.handle.net/10044/1/42717
VL  - 10
ER  -
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