Holographic method for stress distribution analysis in photoelastic materials

Autor(es)

da Silva, Sidney L. ; Prado, Felipe M. ; Brito, Isis, V ; Soga, Diogo ; Gomes, Ligia F. ; Wetter, Niklaus U. ; Muramatsu, Mikiya

• Tipo de documento: Artigo Científico
• Fonte: AIMS MATERIALS SCIENCE; v. 11, n. 4, p. 14-pg., 2024-01-01.

Resumo

An alternative method to obtain the internal stress distribution in photoelastic materials using digital holography (DH) is presented. Two orthogonally polarized holograms were used to obtain the phase maps and analyzed using the proposed approach. This method directly determines the stress distributions from the phase differences obtained in the reconstructed phase maps, unlike methods obtained by photoelasticity. Optical information, such as index of refraction, phase differences, etc., are not measured directly in traditional photoelasticity. However, this approach was validated with both the finite element method and the RGB (red, green, and blue) photoelasticity method that is traditionally used. (AU)

• Processo FAPESP: 12/18162-4 - Desenvolvimento de lasers em meios altamente difusos para análise estrutural de tecidos
• Beneficiário: Niklaus Ursus Wetter
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/23700-4 - SPIE Photonics West LASE - 2020
• Beneficiário: Niklaus Ursus Wetter
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior
• Processo FAPESP: 22/15276-0 - Redes Neurais Ópticas com Novas Funções de Ativação Não Lineares para Recuperação de Fases Aplicadas à Holografia Digital
• Beneficiário: Felipe Maia Prado
• Modalidade de apoio: Bolsas no Brasil - Doutorado