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{Wang:2020:10.1061/(ASCE)ST.1943-541X.0002560,
author = {Wang, J and Sadowski, A},
doi = {10.1061/(ASCE)ST.1943-541X.0002560},
journal = {Journal of Structural Engineering},
pages = {04020014--1--04020014--12},
title = {Elastic imperfect cylindrical shells of varying length under combined axial compression and bending},
url = {http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002560},
volume = {146},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents a comprehensive computational investigation into the elastic nonlinear buckling response of near-perfect and highly imperfect uniform thickness thin cylindrical shells of varying length under combined uniform compression and bending. In particular, the elastic ovalisation phenomenon in cylindrical shell of sufficient length under combined compression and bending was systematically investigated with finite elements for the first time. The study considered a representative range of practical lengths up to very long cylinders where ovalisation is fully developed under uniform bending and Euler column buckling controls under uniform axial compression. The imperfection sensitivity of the system was also studied by introducing a single idealised axisymmetric weld depression imperfection at the midspan of the cylinder. The predictions permit an exploration of the nonlinear mechanics of the generally unfavourable interaction between bending and axial compression at the elastic nonlinear buckling limit state in thin long cylinders. The interaction is at its most unfavourable in cylinders where Euler column buckling is about to become critical, and is qualitatively very different from the favourable moment-force interaction at the reference plastic limit state of circular tubes. A simple closed-form algebraic characterisation of the interaction is proposed considering both imperfections and ovalisation.
AU  - Wang,J
AU  - Sadowski,A
DO  - 10.1061/(ASCE)ST.1943-541X.0002560
EP  - 1
PY  - 2020///
SN  - 0733-9445
SP  - 04020014
TI  - Elastic imperfect cylindrical shells of varying length under combined axial compression and bending
T2  - Journal of Structural Engineering
UR  - http://dx.doi.org/10.1061/(ASCE)ST.1943-541X.0002560
UR  - https://ascelibrary.org/doi/10.1061/%28ASCE%29ST.1943-541X.0002560
UR  - http://hdl.handle.net/10044/1/73190
VL  - 146
ER  -
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