Model for analysis of biaxial and triaxial stresses by X-ray diffraction assuming orthotropic materials
Carregando...
Data
Data de publicação
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Japanese Journal of Applied Physics
Exportar
Resumo
In this work we aim to develop expressions for the calculation of biaxial and triaxial stresses in polycrystalline anisotropic materials, and to determine their elastic constants using the theory of elasticity for continuum isochoric deformations; thus, we also derive a model to determine residual stress. The constitutive relation between strain and stress in these models must be assumed to be orthotropic, obeying the generalized Hooke’s law. One technique that can be applied with our models is that of X-ray diffraction, because the experimental conditions are similar to the assumptions in the models, that is, it measures small deformations compared with the sample sizes and the magnitude of the tensions involved, and is insufficient to change the volume (isochoric deformation). Therefore, from the equations obtained, it is possible to use the sin2 technique for materials with texture or anisotropy by first characterizing the texture through the pole figures to determine possible angles that can be used in the equation, and then determining the deformation for each diffraction peak with the angles obtained from the pole figures.
Como referenciar
SANTOS, EDSON M.; ORLANDO, MARCOS T.D.; MILTAO, MILTON S.R.; MARTINEZ, LUIS G.; ALVES, ALVARO S.; PASSOS, CARLOS A. Model for analysis of biaxial and triaxial stresses by X-ray diffraction assuming orthotropic materials. Japanese Journal of Applied Physics, v. 49, n. 5, p. 056601-1 - 056601-9, 2010. DOI: 10.1143/JJAP.49.056601. Disponível em: http://repositorio.ipen.br/handle/123456789/8125. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.