Bulk Data Entry Defines electrical resistance properties for the gap elements (CGAP or CGAPG) in electrical analysis.


(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
PGAPEC PID KCER              


Manual specification of KCER:
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
PGAPEC 2 1E6              
Automatic determination of KCER:
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
PGAPEC 2 AUTO              


Field Contents SI Unit Example
PID Property identification number. 1

No default (Integer > 0)

KCER Resistance for the closed gap. 2
Real > 0.0

No default



  1. PGAPEC provides electrical resistance for CGAP/CGAPG elements. The PID of a PGAPEC entry must match a PID with an existing PGAP.
  2. KCER represents gap resistance values for closed gaps. Theoretically, while lower resistance values enforce a perfect conductor, excessively low values may cause poor conditioning of the conduction matrix. If such conditions are observed, you may need to increase the value of gap resistance. When gap is open, no electricity goes through the gap and the resistance is infinite. To stabilize conduction matrix, KCER*1.0E-14 is used for open gap electrical resistance.

    To facilitate reasonable values of KCEC, automatic calculation (KCER=AUTO) is supported. This determines the value of KCER for each gap element using the conductance of surrounding elements.

  3. Electrical contact with FREEZE status uses the actual contact status (open or closed) based on geometry.
  4. Electrical Contact Analysis via PCONTEC and PGAPEC is supported for Steady-State Electric Analysis and Multi-Steady Electric Analysis.
  5. This card is represented as a property in HyperMesh.