The Structural Engineer > Archive > Volume 67 (1989) > Issues > Issue 20 > Derivation of Strut Curves for Non-Linear Materials
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Derivation of Strut Curves for Non-Linear Materials

The derivation of strut curves for materials with stress-strain properties which diverge from linear behaviour at relatively low strains is a complex procedure. Further difficulties also exist in measuring the stress-strain relationship in compression for materials with dgfering properties in tension and compression. Experimental and theoretical procedures are described which may be used to derive strut curves for use in design of members comprising general materials of this type. Sections may be made up of any number of rectangular or circular elements or concentrated areas of the same or differing materials. The approach is illustrated by considering a hot-rolled stainless steel for which strut tests have also been conducted. Professor A.R. Kemp