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Fig. 2. Hetrakul and Yu [4] tests: C-sections with stiffened flanges tested under ITF loading conditions and schematic representation of test set-up.
The citation is:
[4] N. Hetrakul, W. Yu, Webs for Cold-formed Steel Flexural Members; Structural Behaviour of Beam Webs Subjected to Web Crippling and a Combination of Web Crippling and Bending, University of Missouri-Rolla, Missouri, USA (1978)
From the same paper as the previous image.
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