Method validation for fatigue testing in kingpins

Fatigue testing in kingpins consists in applying cyclic forces to simulate the mechanical loads experienced by this automotive component in practice. In this context, Laboratório de Metalurgia Física (LAMEF) has a quality system implemented as suggested by ISO/IEC 17025 standard, and for the test to be under the management structure, the method must be validated. Method validation is a documented evidence that represents the standardization and indicates its suitability for a certain purpose. Therefore, this work presents the method validation for fatigue tests in kingpins. Thus, selectivity, linearity, sensitivity, range, precision, accuracy, stability and robustness were used as validation criteria. The interpretation of each criterion showed a suitable performance and guaranteed the method validation according the methodology proposed.