An experimental investigation of the effects of cycling frequency and temperature on the fatigue life of 60 Tin 40 Lead solder

The effects of cycling frequency and temperature on the fatigue life of solder has been analyzed. Mechanical fatigue life experiments were conducted under load control while varying the temperature and cycling frequency. Using the experimental data, a fatigue model was formulated based on the Basquin and the Coffin-Manson relations, introducing the effects of temperature and frequency. The model parameters were obtained by a statistical method incorporating multiple linear regression. Using the model, estimated values of cycles to failure at each of the testing tempt values and frequency were calculated. Using the estimated values, an evaluation of each of the models was conducted resulting in strong correlations between the model's estimation and the experimental data.