In this paper, circumferential strain concentration in cylindrical and square tubes with corrugated surface subjected to axial compression are studied by using finite element method. For cylindrical tubes, the yielding tress σ
y, hardening coefficient
Eh of material and thickness
t of tube have only a small influence on the strain concentration, and maximum circumferential strain can be evaluated approximately as a function of wavelength 2λ and amplitude
a of corrugation and cylinder radius
R. For square tubes, however, effect of the corner radius
r, the thickness
t, and the yielding stress σ
y, hardening coefficient
Eh on the strain concentration is comparable as wavelength 2λand amplitude
a of corrugation. The maximum circumferential strain is larger as the corner radius
r/Dis small, as the thickness
t is thin, and as ratio of σ
y/
Eh is large.
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