This dialogbox allows the user to increase or decrease the magnitude of boundary stresses (or displacement if the boundary condition is specified by displacement). The value of increment or reduction of shear or normal stress is requested in either magnitude or the percentage of the current value (not enabled yet). Note that the compressive stress is negative, so that an increment in compressive stress should be given as a negative value.
This command is particularly useful in studying the change of the fracture growth path when the boundary stresses (e.g. hydraulic pressure in a borehole) are changed.
