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Three-point bending flexural test

In a 3-point bending flexural test, a standardized specimen is bent under uniaxial bending stress until plastic deformation or fracture occurs. In this way, strength parameters such as the flexural yield point, the flexural offset yield point, the ultimate flexural strength or the deflection at break are determined. Learn more about the bending flexural test in this video. 00:00 Test setup 00:52 Stress distribution 03:52 Flexural stresses 06:55 Testing of ductile materials 07:02 Flexural yield point 09:10 Flexural offset yield point 09:45 Flexural strain 10:42 Testing of brittle materials 10:57 Ultimate flexural strength 11:58 Brittle materials in the tensile test 12:30 Four point bending flexural test 13:07 Determination of the Young’s modulus 14:22 Calculating the flexural strain 15:13 Stress distribution without strain hardening 16:07 Stress distribution with strain hardening 17:27 Residual stresses 18:48 Stress distribution for grey cast iron video tensile test @ 11:58