How to measure and analyse the texture of food, cosmetics, pharmaceuticals and adhesives.

Tuesday, 12 December 2017

Physical Property Measurement: Fracture Testing in Bending

This is a versatile test and can be applied to many types of products that are available in, or can be cut or shaped into, elongated test beams. 

The most conventional method is a three-point bend test in which the specimen is supported horizontally at either end like a bridge and a probe moving downwards bends it in the centre. As the specimen bends it stores up strain energy, which is dissipated in cracking at the point of fracture.