Estimating Measurement Uncertainty on Stress-Strain Curves from SHPB

Denis Brizard (1) , Sylvie Ronel (1) , Eric Jacquelin (1)

1 LBMC UMR T9406 - Laboratoire de Biomécanique et Mécanique des Chocs

Split Hopkinson Pressure Bar tests are commonly used to determine material stress-strain relationship at high deformation rates. Obtaining this relationship is dependant both on certain assumptions and substantial post-processing of the data recorded during the test. Measurement uncertainty rarely appears on the resulting curves. This article introduces a simple method of estimating the measurement uncertainty associated with SHPB tests.

Mots clés: MEASUREMENT UNCERTAINTIES; SPLIT HOPKINSON PRESSURE BARS; PROPAGATION OF UNCERTAINTY

Domaines: Mécanique des matériaux [physics.class-ph]

Denis Brizard, Sylvie Ronel, Eric Jacquelin. Estimating Measurement Uncertainty on Stress-Strain Curves from SHPB. Experimental Mechanics, 2017, 57 (5), pp.735-742. ⟨10.1007/s11340-017-0260-8⟩. ⟨hal-01598507⟩