The Flexural test measures the force required to bend a beam under 3 point loading conditions. The data is often used to select materials for parts that will support loads without flexing.
Flexural modulus is used as an indication of a material s stiffness when flexed.
Most commonly the specimen lies on a support span and the load is applied to the center by the loading nose producing three point bending at a specified rate. Flexural strength, flexural stress at specified strain levels, and flexural modulus can be calculated. Equipment used at Plastics Technology Laboratories. Links Entire contents 1996-2001 Plastics Technology Laboratories, Inc.