A methodology to calibrate and to validate effective solid potentials of heterogeneous porous media from computed tomography scans and laboratory-measured nanoindentation data

摘要: Built on the framework of effective interaction potentials using lattice element method, a methodology to calibrate and validate elasticity solid constituents in heterogeneous porous media from experimentally measured nanoindentation moduli imported scans advanced imaging techniques is presented. Applied computed tomography (CT) two organic-rich shales, spatial variations prove instrumental capturing elastic behavior highly materials via first cumulants distributions moduli. After calibration validation steps while implicitly accounting for mesoscale texture effects CT scans, Biot poroelastic coefficients are simulated. Analysis stress percolation suggests contrasting pathways load transmission, reflection microtextural differences studied cases. This energy content real experimental measurements paves way study other phenomena such as wave propagation fracture providing platform fine-tune given advancements additive manufacturing machine learning algorithms .