Fatigue life prediction of adhesive joint in heat sink using Monte Carlo method

A finite element model of the heat sink along with a fatigue life prediction model can be used to investigate the thermal stress cyclic effect on thermo-mechanical reliability performance. However, the variability of the governing parameters makes the life prediction probabilistic. The Monte Carlo simulation is used to study the effect of random variation associated with the governing parameters on the predicted fatigue life of the heat sink. It has been found that the variability affects the predicted life significantly as almost half of the considered sample points have predicted life that differs from deterministic predicted values by some order of magnitudes.