The 18G2A Steel (Construction Steel) Cyclic Behaviour in the Case of Complex Uniaxial Loading
This paper is concerned with the phenomenon of uniaxial cyclic material behaviour in the plastic range. A set of systematic strain and stress-controlled cyclic (tension-compression) experiments was conducted on round bar specimens made of 18G2A (heat treated) construction steel at room temperature. Results concerning monotonic loading, straincontrolled symmetric cyclic loading and stress-controlled non-symmetric cyclic loading (ratchetting) are presented and summarized. All experiments were performed on similar specimens, the same laboratory equipment and using the same experimental technique. The technique of successive unloadings (proposed by the author [1,2]) was used to obtain some additional information concerning the yield surface position and its evolution for the loading programs mentioned above.
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