Resumen

The subject of mechanics of materials at the University of Ibague, requires complementing the theoretical learning classes in order for students to achieve interactive education with laboratory practice. This document discloses the results obtained when testing metal cutting specimens in a constructed prototype, and the data was compared with the calibrated machine. Aluminum, brass and steel bronze specimens were tested. In the fault process, five specimens were used for each material and type of test both in the prototype and in the properly calibrated machine. The maximum shear stresses of the specimens were calculated and compared between the two machines to determine that the prototype and the calibrated machine meet close values and thus be reliable. Based on the results obtained, it is concluded that the prototype is a good alternative as a support instrument in laboratory tests in the Materials Mechanical subject.