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- W576403921 abstract "The buckling characteristics of straight SMA (shape memory alloy) columns were investigated in this study. A parameter called anti-buckling capability was introduced and used to judge the stability of SMA columns under axial compression. The anti-buckling capability of SMA columns with different lengths and axial loads were calculated using a simple method. It was found for all considered lengths of columns that with the increase of axial load the anti-buckling capability decreases to a minimum value first, increases again to a maximum value and at last decreases monotonically to negative. This special anti-buckling capability versus axial load curve of SMA columns is due to the special non-linearity of stress-strain curve of the SMA. The anti-buckling capability at the minimum point can be either positive or negative depending on the length of a column. Since a SMA column buckles at the smallest value of the axial load, at which the antibuckling capability becomes negative, the sign of the anti-buckling capability at the minimum point of the anti-buckling capability versus axial load curve is critical to the buckling load of column. If the anti-buckling capability at the minimum point is negative, the column buckles at a significantly low axial load. However, the absolute value of the negative anti-buckling capability is relatively small and it can easily be changed to positive by very simple strengthening so that tthe buckling load of the column can be significantly increased." @default.
- W576403921 created "2016-06-24" @default.
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- W576403921 date "2002-01-01" @default.
- W576403921 modified "2023-09-24" @default.
- W576403921 title "Buckling of Shape Memory Alloy Columns. 2nd Report. Anti-Buckling Effect of Straight Columns." @default.
- W576403921 doi "https://doi.org/10.1299/kikaia.68.1636" @default.
- W576403921 hasPublicationYear "2002" @default.
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