Compression and Fatigue Testing of High-Strength Thin Metal Sheets by Using an Anti-Buckling Device

Abstract Background The modelling of the sheet metal forming operations requires accurate and precise data material plastic behaviour along non-proportional strain paths. However, buckling phenomenon severely limits compressive range that could be used to deform thin sheets. Objective main aim this paper was propose an effective device, enables determine stress-strain characteristics specimens subjected axial deformation without with a special emphasis on friction correction. Methods In paper, anti-buckling fixture proposed assess X10CrMoVNb9-1 (P91) power engineering steel, DP500 DP980 dual-phase steels, under compression loading. monitoring between specimen supporting blocks during test, thus stress response determined. Results effectiveness evaluated tension–compression cyclic loading tests in which high-strength sheets were successfully deformed up 10% buckling. Furthermore, successful determination force variation enabled actual acting specimen. Conclusions testing assessed as no observed. Its advantage lies adapting change its length elongation or shrinkage test. generated from movement both parts device effectively monitored by gauge system impact eliminated.