Análisis del comportamiento de procesos térmicos en materiales plásticos. Uso de modelos matemáticos en prácticas de laboratorio de una ingeniería

Abstract

Newton has been considered as one of the most important scientist in the history. Associated firstly with the mechanics, also he contributed with all areas of physics, such as viscosity, energy etc. Furthermore, he developed the differential and integral calculus with Leibniz, allowing him to advance in their discoveries. From a teaching point of view, the Law of cooling states is an excellent tool since it allows to the students apply their knowledge in mathematics, by a simple way. They could apply their knowledge?s in terms of integrals, graphical lines, potential, etc. to a series of real experimental values obtained by themselves. In the same way, it is intended that the student will be able to fitting the linear curves obtained and determine which is the equation governing the phenomenon. Newton's Law of cooling shows that the rate of change of the temperature of a body is proportional to the difference in temperatures between its own temperature and the ambient temperature. The most widely used experimentation is monitoring a liquid cooling. But in the second cycle's subject of Materials Engineering and its subsequent conversion to Master Degree, the experience have been adapted to the heating of plastic material in a furnace and the cooling of sheet, so that in addition to its importance in the ”electronic and thermal behavior of materials”, can be accommodated to more applied subjects related to the processing of plastics.

Keywords

• Newton's Law of cooling
• Materials Engineering