The invention relates to a method for checking a sample (1) with combined rotational bending and torsional loading, preferably at high frequency, characterised by the combination of the following features: setting the sample (1) in rotation, subjecting the sample (1) to a torsional load by means of two torsional torques generated by electric motors applied to two opposing ends of the sample (1) and subjecting the sample (1) to a bending load either applied to the ends thereof or at a point between the ends.