The inverse method analysis provide a quantitative estimation of the force network inside a granular media made in a photoelastic material. With such analysis the contact forces magnitude and orientation can be determined under some assumptions. The main idea of inverse method is to generate a numerical photoelastic picture that matches the experimental one, like illustrated below (from [1].
The inverse method analysis provide a quantitative estimation of the force network inside a granular media made in a photoelastic material. With such analysis the contact forces magnitude and orientation can be determined under some assumptions. The main idea of inverse method is to generate a numerical photoelastic picture that matches the experimental one, like illustrated below (from [1]).
@@ -98,8 +98,11 @@ To improve the current result, it may be possible to manually provide some initi
## 4. Reference
[1] K. E. Daniels, J. E. Kollmer, and J. G. Puckett, "Photoelastic force measurements in granular materials." Review of Scientific Instruments, vol. 88, no. 5, May 2017.
[2] S. Timoshenko and J. N. Goodier, Theory of Elasticity, 3rd ed. New-York: McGraw-Hill, 1970.
[3] Z. Wang, A. C. Bovik, H. R. Sheikh, and E. P. Simoncelli, “Image quality assessment : from error visibility to structural similarity,” IEEE Transactions on Image Processing, vol. 13, pp. 600–612, Apr. 2004.
[4] Z. Wang and A. C. Bovik, "Mean squared error: love it or leave it? - A new look at signal fidelity measures," IEEE Signal Processing Magazine, vol. 26, no. 1, pp. 98-117, Jan. 2009.
