Análise do comportamento mecânico de artigo têxtil sob ação de objetos perfurocortantes

Abstract

The contextualization of textile materials and their derivatives from a criminological point of view is of great importance for the forensic sciences in general. The analysis of textiles in crime scenes, whether in the form of trace evidence or in larger sets of evidence, is fundamental for the construction of hypothesis in crime scenes. Based on this, it was decided to start a forensic research in textiles, through the analysis of the damage caused to a textile material, caused by various sharp objects. A machine capable of delivering blows was developed, into which various objects commonly used in crimes, such as knives and scissors, were attached. Also, blows delivered by three individuals of different physical characteristics, using the same objects, so that the results were both ample and precise. A t-shirt fabric was placed on a piece of pig meat, and blows were delivered to it, and then analyzed both micro and macroscopically, and finally cataloged, describing their common characteristics. It is expected to have a concise and precise cataloging of the damage caused to the fabrics, as well as clear results in relation to the differences caused by each object.