Análise fractográfica do Polimetilmetacrilato (PMMA)

• Autor(a) principal: Angelotto, Marcelo Ricardo de Souza
• Data de Publicação: 2015
• Outros Autores: Feitosa, Stefano Augusto Davi, Alves, Ruy José Feijó, Gouveia Filho, Marcos Daniel, Deus, Ênio Pontes de
• Tipo de documento: Artigo de conferência
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
• Texto Completo: http://www.repositorio.ufc.br/handle/riufc/57663
• topic: Fractográfia; Polímero; PMMA; Acrílico

The optical fractography is an efficient and low cost for the examination of fractured surfaces method, resulting in a typical and representative determination of the fracture surface obtained quickly and accurately. The polymethylmethacrylate (PMMA), called of acrylic, thermoplastic semicrystalline polymer with moderate mechanical strength, light weight, good conformability, transparent and colorless. Because these properties, is considered one of the most modern polymers being used in many engineering applications. In some of these applications, the knowledge of their behavior under mechanical effort is required. This work aims to characterize the PMMA fractures in mechanical tests of uniaxial tension. The observations of fractures of the test samples were mechanically performed with the aid of light microscopy. Comparison of the fracture surfaces, obtained by mechanical test, showed two aspects of fracture.