Construction of a Low-Cost Semi-automatic Machine for Tensile Testing

Tensile tests make it possible to determine the resistance and other relevant parameters of the materials. These procedures are usually performed with equipment that is expensive and inaccessible to higher education centers with limited budgets. In the case of acquiring this hardware, the disadvantage is that this are purely manual machines that make the use and learning process difficult. That is why this document shows the construction of a machine that allows this type of testing, but using low-cost materials. The mechanical and electronic design and programming that has been used to implement and semi-automate the machine is briefly but clearly described. To validate the functionality, the respective tests have been carried out, although it is a limited version that requires improvements, the results are satisfactory. The curve obtained when carrying out tests with A36 steel has shown a similarity with the theory. Thus, students obtain a technological tool that contributes to academic training, strengthening knowledge in the study of materials.