Abstract
Elastic deformation behavior in the porous copper compacts under static compression was studied by Speckle Photography. The advantages of using the Speckle Photography have been emphasized for the determination of small strain distribution in porous compacts.
The results of this study are summerized as follows:
(1) The small strain of the order of 10-4 with a gauge length of less than 1 mm was able to be detected by the present method.
(2) Young's Modulus distributions evaluated from the strain measurement along specimen axes of the porous compacts were confirmed to correspond well to the existing porosity distribution.
