Author Topic: ampacity / current carrying capacity  (Read 69 times)

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Offline Nayab Shiraz

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ampacity / current carrying capacity
« on: September 5, 2020, 01:07 »
How can I calculate the current carrying capacity/ ampacity using Quantum ATK?
« Last Edit: September 5, 2020, 03:56 by Nayab Shiraz »

Offline Troels-Markussen

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Re: ampacity / current carrying capacity
« Reply #1 on: September 9, 2020, 09:45 »
Hi,

In my understanding, a detailed calculation of the current carrying capacity is an extremely complicated task involving (i) electron-phonon coupling giving rise to current induced heating (i.e. energy transfer from the electrons to the phonon bath and vice versa); (ii) current-induced forces; (iii) this should be coupled with some kind of molecular dynamics simulation to actually model the break-down of the conductor.
Such a full calculation cannot be done with QuantumATK (or with any other tool as far as I am aware).

You can address parts of the problem individually such as electron-phonon coupling or to some extend current-induced forces (calculate the force at finite bias).

Regards,
Troels