This paper presents the stands for strength tests of materials and structures with digital control systems, designed and built at the Department of Mechanics and Machine Design, Opole University of Technology. The authors described electrohydraulic strength stands for tests under uniaxial tension – compression, biaxial tension – compression of cruciform specimens, and electromechanical stands for tests under cyclic bending and torsion with phase shift, and under polyharmonic bending with torsion. Fatigue tests which could be performed on these stands as well as algorithms of controllers were presented.
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