2-Point Alternating Flexure Tests
The 2-point alternating flexure test according to EN 12697-24, Annex A and EN 12697-26, Annex A is used to determine fatigue resistance and dynamic stiffness. It is the standard test method in France. The test fixture has frictionless, wear-free flexure pivots, which translate the vertical piston travel into horizontal motion. Two specimens can be tested simultaneously at the same amplitude, with separate measurement of force and horizontal displacement for each specimen. A reference specimen with strain gages attached is available for calibration purposes.