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  1. francesco87

    Radiative Equilibrium thermal analysis

    Hi everybody, I'm running a Steady State Thermal Analysis (sol 153) of an assembly using FEMAP and Nastran. My load set comprises a number of heat fluxes, which are supposed to be dissipated by radiation. At the steady state, I expect the summation of heat fluxes (power) to be exactly...
  2. francesco87

    Solder Joints Modeling via FEA

    Hi everybody, I need to simulate - with a satisfactory accuracy - the attachment between a PCB (Printed Circuit Board) and some electronic modules through a pin-in-hole solder connection (see picture attached). I found plenty of articles about the so-called Global-local modelling technique, in...
  3. francesco87

    Design Optimization issues

    Hi everyone! I'm facing two problems with the Design Optimization tool of Femap 10.2 with NX Nastran, namely: - when optimizing rods subject to compressive loading (therefore producing negative axial stresses), the solver fails if I set a negative value for the design constraint (for example...
  4. francesco87

    Linear Contact in Normal Modes analysis

    Hi everybody, this is my first thread. I'm a beginner with Femap and Nastran, therefore there could be some basics I ignore or I'm not familiar with: I would be very grateful if you gave me some general tips, besides the specific issue in subject. I'm using Femap v.10.2 with NX Nastran to...

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