There are higher-order deformation gradients in the higher-order deformation theory, in which higher-order stresses are usually involvded in order to meet conjugating principle. In that way ,higher-order stress boundary conditions (such as Neumanm boundary ) should be applied when solving the partial differential eqution.
I want to know how to apply this second boundary in UEL of ABAQUS.
any help and suggestions are greatly appreciated.
Forums