Introduction

The static and dynamic characterization of bushings, mounts and other vibration isolation devices is determined as a function of loading rates, frequencies temperatures. The information from these tests is sometimes used in kinematic software such as ADAMS or for basic product performance verification.

Introduction

The examination the basic load deflection characteristics of components can be critical to understanding the complex behavior of components. It may also be performed for the purpose of verifying results generated using analytical tools. The use of imaging systems along with basic load deflection tests can provide information regarding the relationship between the part shape, the structural properties and the analytical model.

Friction is the resistance to sliding between 2 surfaces in contact when pressed together. Friction is often described with a single coefficient which is the sliding resistance force divided by the normal force pushing the 2 surfaces together.  In general, friction can be a function of the materials that make up the surfaces, the normal pressure, temperature and the rate of sliding.  A friction sled test is used for low normal force and comparative tests and a more elaborate axial torsion friction test is used for higher normal force tests.

Structural testing of fine wire for the purpose of obtaining static stress and strain data or cyclic fatigue data can be challenging. Careful gripping and strain measurement are critical parameters for success.

It can be valuable to examine parts and materials in a combined axial and torsional stress and strain condition. The system at Axel is capable of a combined 10 kN axial force and 100 N-m torsional force.