Failure criterion for woven fiber composites built upon asymptotic homogenization techniques

• Grant number: 14/00929-2
• Support Opportunities: Scholarships in Brazil - Master
• Start date: August 01, 2014
• End date: February 29, 2016
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Rafael Thiago Luiz Ferreira
• Grantee: Rafael Quelho de Macedo
• Host Institution: Divisão de Engenharia Mecânica (IEM). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
• Associated scholarship(s): 14/26377-6 - Failure criteria for woven fiber composites built upon asymptotic homogenization techniques, BE.EP.MS

Abstract

The objective of this work is to develop failure envelopes for laminae of woven fiber composites based on asymptotic homogenization techniques. Considering the composites of interest periodic in terms of their heterogeneity, homogenization techniques can be used to analyze stresses at unit cells of the material microstructure. To build the failure envelopes, such stresses are evaluated in the different phases of the composite (fiber or matrix regions) according to appropriate yield/failure criteria, in several loading situations for the unit cell. The results obtained can be validated by comparison with experimental data from the literature. Failure of unidirectional fiber composites can also be used as guidelines. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE MACEDO, RAFAEL QUELHO; LUIZ FERREIRA, RAFAEL THIAGO; DONADON, MAURICIO VICENTE; GUEDES, JOSE MIRANDA. Elastic properties of unidirectional fiber-reinforced composites using asymptotic homogenization techniques. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 40, n. 5, MAY 2018. (14/00929-2, 14/26377-6, 15/00159-5)

DE MACEDO, RAFAEL QUELHO; LUIZ FERREIRA, RAFAEL THIAGO; GUEDES, JOSE MIRANDA; DONADON, MAURICIO VICENTE. Intraply failure criterion for unidirectional fiber reinforced composites by means of asymptotic homogenization. COMPOSITE STRUCTURES, v. 159, p. 335-349, JAN 1 2017. (14/00929-2, 14/26377-6, 15/00159-5)