DualNumber< Real, DNDerivativeType, true > ADReal
virtual ADReal computeQpResidual(Moose::MortarType mortar_type) override
Computes the residual for the LM equation, lambda = (k/l)*(T^(1) - PT^(2)).
std::vector< const ADVariableValue * > _disp_primary
const VariableValue & _stress_neighbor_old
Old stress variable (possibly nodally recovered property) on primary surface.
const Real _k
Thermal conductivity of the gap medium (e.g. air).
std::vector< const ADVariableValue * > _disp_secondary
const VariableValue & _stress_old
Old stress variable (possibly nodally recovered property) on secondary surface.
const Real _min_gap
Minimum gap distance allowed.
const unsigned int _n_disp
static InputParameters validParams()
const std::vector< std::string > _disp_name
Displacement variables.
const InputParameters & parameters() const
VariableValueTempl< false > VariableValue