TY - JOUR
T1 - Measurement of Young's modulus and Poisson's ratio of metals by means of ESPI using a digital camera
AU - Francisco, J. B.Pascual
AU - Michtchenko, A.
AU - Pérez, O. Barragán
AU - Huerta, O. Susarrey
N1 - Publisher Copyright:
© 2016 IOP Publishing Ltd.
PY - 2016/8/5
Y1 - 2016/8/5
N2 - In this paper, mechanical experiments with a low-cost interferometry set-up are presented. The set-up is suitable for an undergraduate laboratory where optical equipment is absent. The arrangement consists of two planes of illumination, allowing the measurement of the two perpendicular in-plane displacement directions. An axial load was applied on three different metals, and the longitudinal and transversal displacements were measured sequentially. A digital camera was used to acquire the images of the different states of load of the illuminated area. A personal computer was used to perform the digital subtraction of the images to obtain the fringe correlations, which are needed to calculate the displacements. Finally, Young's modulus and Poisson's ratio of the metals were calculated using the displacement data.
AB - In this paper, mechanical experiments with a low-cost interferometry set-up are presented. The set-up is suitable for an undergraduate laboratory where optical equipment is absent. The arrangement consists of two planes of illumination, allowing the measurement of the two perpendicular in-plane displacement directions. An axial load was applied on three different metals, and the longitudinal and transversal displacements were measured sequentially. A digital camera was used to acquire the images of the different states of load of the illuminated area. A personal computer was used to perform the digital subtraction of the images to obtain the fringe correlations, which are needed to calculate the displacements. Finally, Young's modulus and Poisson's ratio of the metals were calculated using the displacement data.
KW - Poisson's ratio
KW - Young's modulus
KW - electronic speckle pattern interferometry
UR - http://www.scopus.com/inward/record.url?scp=84985034361&partnerID=8YFLogxK
U2 - 10.1088/0143-0807/37/5/055708
DO - 10.1088/0143-0807/37/5/055708
M3 - Artículo
AN - SCOPUS:84985034361
SN - 0143-0807
VL - 37
JO - European Journal of Physics
JF - European Journal of Physics
IS - 5
M1 - 055708
ER -