Bent copper wire resistance - QuickField simulation example
Calculation of bending effect on wire electrical resistance.
How to find conductor resistance change due to bending?
Answer Typical applications Geometry
Given
Task
Solution
Result
Current terminal electric potential V = 0.00168 [V].
Engineering question
Set up a 3D QuickField DC Conduction problem for a bent copper conductor and evaluate resistance change due to bending from computed field results.
flexible conductors, cable harness wiring, bent wire interconnects
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Simulation problem
Problem Type
3D problem of DC conduction.
Copper electric conductivity σ = 56 MS/m.
Current I = 100 A.
Determine the resistance of the bent copper wire.
The resistance R is equal to the ratio of voltage drop V to the current I
R = V / I [Ohm]
We apply normal current density jn = I / A (where A is a wire cross-section area) at current terminal and zero potential at ground terminal. DC conduction simulation yields the current terminal electric potential V.
Electric potential and current distribution in a wire:
Resistance R = 0.00168 / 100 = 16.8 [uOhm].
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