Track 2 Session 7

1:00 to 2:00 p.m. Thursday March 24, 2011

Practical Reliability Testing of Structures under Road Loadings

Fatigue is a complex phenomenon that is affected by a number of factors, such as the surface finish of the component, environmental effects, heat treatments, presence of stress concentration factors, etc. It is therefore important to carefully analyze components subjected to fluctuating loads so that the desired reliability can be built into these components, and so that over-designed or under-designed components can be avoided. This presentation will cover examples of mechanical structures under road and self-induced vibration inputs, and correlate to actual vibration testing using finite element techniques associated with several fatigue-life models. The presentation also covers practical considerations for the selection of fatigue testing equipment and fatigue cycle counting methods to actual testing.

Key Words: Accelerated reliability testing, fatigue testing, Vibration testing, Structural Reliability

Julio Pulido

Ingersoll Rand