@inproceedings{e495980dd8b44848891bb54ef189743a,
title = "Measurement of elastic and thermal properties of composite materials using digital speckle pattern interferometry",
abstract = "In the present work, application of digital speckle pattern interferometry (DSPI) was applied for the measurement of mechanical/elastic and thermal properties of fibre reinforced plastics (FRP). Digital speckle pattern interferometric technique was used to characterize the material constants (Poisson's ratio and Young's modulus) of the composite material. Poisson ratio based on plate bending and Young's modulus based on plate vibration of material are measured by using DSPI. In addition to this, the coefficient of thermal expansion of composite material is also measured. To study the thermal strain analysis, a single DSPI fringe pattern is used to extract the phase information by using Riesz transform and the monogenic signal. The phase extraction from a single DSPI fringe pattern by using Riesz transform does not require a phase-shifting system or spatial carrier. The elastic and thermal parameters obtained from DSPI are in close agreement with the theoretical predictions available in literature.",
keywords = "Composite material, Digital speckle pattern interferometry, Mode shape, Plate vibration, Poisson's ratio, Thermal expansion coefficient, Young's modulus",
author = "Manoj Kumar and Khan, {Gufran S.} and Chandra Shakher",
note = "Publisher Copyright: {\textcopyright} Copyright 2015 SPIE.; 6th International Conference on Speckle Metrology, SPECKLE 2015 ; Conference date: 24-08-2015 Through 26-08-2015",
year = "2015",
month = jan,
day = "1",
doi = "10.1117/12.2196390",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Santoyo, {Fernando Mendoza} and Mendez, {Eugenio R.}",
booktitle = "SPECKLE 2015",
address = "United States",
}