G238 3 Point Bend Fixture The G238 3 Point Bend Fixture is made to bend test thinner and weaker plastics. This test used to measure materials bending moment. This stress localisation is ideal for testing for specific isolation of stress on a component or material. The family of bending fixtures is designed for 3-point and 4-point bend testing of plastics, metals, ceramics, tubing, biscuits, snack and other rigid and semi-rigid materials. This bend fixture can exert up to 50 kilonewtons (or 11,250 lbs) of force to a specimen. Flexural or modulus of bend test is more commonly known as three point or four point bend test. 3 point flexure test The 3 point flexure fixture produces its peak stress at the specimen mid-point with reduced stress elsewhere. G103 3 Point Bend Fixture The G103 3 Point Bend Fixture is made for plastics with mid-ranged toughness. This fixture can exert forces up to 250 kilonewtons (or 55,000 lbs). A components or materials flexural strength provides critical insight into the modulus of elasticity in bending, flexural stress and flexural strain. G22 3 Point Bend Fixture The G22 3 Point Bend Fixture is made for all types of materials, and is best for stronger and thicker plastics. These fixtures can be made to test to your particular plastic sample and test in accordance with the common plastic testing method, ASTM D790. They are available in 3 and 4 point bend versions. First, internal displacements occurring within the 3-point flexure fixture.
3 point bend test flexture series#
The G22, G103 and G238 series are popular and configurable bend fixtures. In order to correct the extension data, a system deflection analysis was initiated. TestResources provides a variety of bend test machines and fixtures. Bend tests are run until the sample breaks or ruptures with the stress and strain values recorded throughout the duration or until a strain rate of 5 percent has been reached. Flexure tests require the load to be applied to the midsection of the test sample so that it is bent into a āUā or āVā shape with the outside surface experiencing tensile forces and the inside face experiencing compressive forces. Three point bending flexural tests provide modulus of elasticity in bending, flexural strain, flexural stress, and the flexural stress-strain response of plastics and other materials.