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A Note on Calculating Hysteretic Behavior

Agricultural University of Athens, Iera odos 75, 11855 Athens, Greece

View larger version (11K): [in a new window]   Fig. 1 Drying boundary curve (a) and wetting boundary curve (b) of a hypothetical reproducible hysreresis loop describing the water content–suction relationship of a porous body

View larger version (15K): [in a new window]   Fig. 2 Distribution diagram explaining the processes of wetting and drying

View larger version (19K): [in a new window]   Fig. 3 Giving an example for calculating values. . The volume V of the water element standing on each square of the mesh if

View larger version (11K): [in a new window]   Fig. 4 Experimental boundary curves (solid lines and solid circles) and experimental primary wetting scanning curves (solid circles) presented originally by Poulovassilis (1970) and primary wetting scanning curves computed by the computational scheme proposed (dashed lines). Solid circles represent experimental points

View larger version (12K): [in a new window]   Fig. 5 Experimental boundary curves (solid lines and solid circles) and experimental primary drying scanning curves (solid circles) presented originally by Poulovassilis (1970) and primary drying scanning curves computed by the computational scheme proposed (dashed lines). Solid circles represent experimental points

View larger version (13K): [in a new window]   Fig. 6 Experimental boundary curves (solid lines and solid circles) and experimental primary wetting curves (solid circles) presented originally by Poulovassilis and Childs (1971) and primary wetting scanning curves computed by the computational scheme proposed (dashed lines). Solid circles represent experimental points

View larger version (14K): [in a new window]   Fig. 7 Experimental boundary curves (solid lines and solid circles) and experimental primary drying curves (solid circles) presented originally by Poulovassilis and Childs (1971) and primary drying scanning curves computed by the computational scheme proposed (dashed lines). Experimental primary drying curve ABC (solid line and solid circles) forms the drying boundary of the partial hysteresis loop used for calculating the primary drying curves inside the partial loop. Solid circles represent experimental points