First introductory video of the ELLEA1 worksheet; the program calculates stresses, strains, and displacements in a layered elastic half-space. The ELLEA1 worksheet is (and always has been) completely free to use and distribute, downloadable from:
(i) https://www.academia.edu/8252546/ELLEA1_Isotropic_Layered_Elasticity_in_Excel
(ii) https://orbit.dtu.dk/en/activities/ellea1-isotropic-layered-elasticity-in-excel-pavement-analysis-to
(iii) https://www.cesdb.com/ellea1.html
(iv) https://zenodo.org/record/7496537
Detailed information about the underlying formulation can be found in:
(i) https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2659&context=jtrp
(ii) https://www.amazon.com/Pavement-Mechanics-Prof-Eyal-Levenberg/dp/8797231703
