Ansys Sherlock Helps Modify Testing Parameters

An electronic engineering (E/E) module supplier had to meet an automotive OEM’s reliability metric of 97% (less than 3% risk of failure) over a 10-year durability period for a new E/E module. To determine whether the supplier’s product meets the reliability goal, the automotive OEM requested that the modules be subjected to thermal cycling tests with OEM-defined parameters.The E/E module supplier suspected that the automotive OEM’s thermal cycling parameters were unnecessarily severe. The supplier commissioned the use of Ansys Sherlock to test the module’s field durability against the thermal cycling tests using simulation-aided testing. A 3D FEA model was built of the supplier’s E/E module in a CAE environment, using the OEM’s definition of annual thermal cycling to model the 10-year field profile.

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