Measurement and prediction of geometric imperfections in structural stainless steel members
Cruise, R. B. and Gardner, L., 2006. Measurement and prediction of geometric imperfections in structural stainless steel members. Structural Engineering and Mechanics, 24 (1), pp. 63-89.
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Geometric imperfections have an important influence on the buckling response of structural components. This paper describes an experimental technique for determining imperfections in long (5.7 m) structural members using a series of overlapping measurements. Measurements were performed on 31 austenitic stainless steel sections formed from three different production routes: hot rolling, cold rolling and press braking. Spectral analysis was carried out on the imperfections to obtain information on the periodic nature of the profiles. Two series were used to model the profile firstly the orthogonal cosine and sine functions in a classic Fourier transform and secondly a half sine series. Results were compared to the relevant tolerance standards. Simple predictive tools for both local and global imperfections have been developed to enable representative geometric imperfections to be incorporated into numerical models and design methods.
|Creators||Cruise, R. B.and Gardner, L.|
|Departments||Faculty of Engineering & Design > Architecture & Civil Engineering|
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