The biggest difference between a flexure test and a bend test is in the type of material used and the test information produced. Generally a flexure test is designed to measure the bend strength of a brittle material, whereas, a bend test is designed to measure the crack resistance of a ductile material. A bend test is designed to apply forces to the sample in a way that causes it to deform in a way that will highlight any imperfections or cracks in the material for the purpose of determining the materials ductility. Performing a flexure test on a sample requires it to be loaded until the sample is pushed beyond just deforming and completely ruptures allowing for the determination of the samples maximum bend strength.