Torsion, compression, tensile test machine with tubular body

A multifunction test machine (1; 41) extends along a vertical axis (9), and has a first and a second clamping device (4, 5) aligned along the axis (9) and for gripping opposite ends of a test specimen (2); a test load application device (6) for applying test loads to the specimen (2); and a frame (3; 42) supporting the test load application device (6) and the first and second clamping device (4, 5), and which has a tubular body (15; 45; 53; 55) extending about the axis (9) and between the first and second clamping device (4, 5), to withstand the reaction transmitted to the frame (3; 42).