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Abstract: According to the waviness function and the corresponding
longitudinal fiber's non-homogeneous elongation of the eight main strip
shape (i.e. flatness defects) in industry production, the displacement
function and boundary condition of the inner stress for the buckling
process which produces the waviness is abstracted. Furthermore, buckling
and postbuckling models are established by use of elastic thin plate
theory and the principle of energy, and numerical examples are analyzed
and calculated. On the basis of the research of the strip buckling and
postbuckling at normal temperature, the strip buckling at high
temperature is studied , and the buckling criteria and the deforming
route at variable conditions is obtained.
Key words: Strip High temperature Part width Buckling/postbuckling
Flatness defect
CLC No: TG355.12
Received 20040630, received in
revised form 20041027 |