With a simple sample geometry, a 3-point-bend test can be used to obtain stress-strain behavior, elastic modulus in bending (flexural modulus), and failure limits in bending. The standards ASTM E855, ...
This video shows flexure testing of plastics to ISO178 using the AutoX750 from Instron. The ISO 178 investigates the flexural behavior of plastics to determine the flexural strength, flexural modulus, ...