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Knowledgebase >

Bend/Flex Testing

1 Mins

Knowledgebase >

Bend/Flex Testing

The three-point bend testing provides values for the modulus of elasticity in bending and the flexural stress–strain properties of the material being tested. One advantage of three-point flexural testing over other methods is the ease of the specimen preparation. Very little preparation is usually required for a bend/flex tester. A deflection coil may also be implemented and placed under the sample being tested to give a more accurate measurement of displacement versus just measuring the displacement of the crosshead travel. Four-point bend testing is similar, the major difference is that the addition of a fourth loading point brings a much larger portion of the beam to the maximum stress. This is most noticeable when studying brittle materials.

View our Flexibility Testing Machines here

United’s Universal Testing Machines can help you with these and many other Bend & Flex testing standards

ASTM A370 – Tensile Bend Strength Steel Test Equipment
ASTM C1018 – Fiber Reinforced Concrete Flexural Toughness Equipment
ASTM C1161 –  Flexural Bend Ceramics Test Equipment
ASTM C1499 – Equibiaxial Flexural Ceramics Test Equipment
ASTM C158 – Flexural Bend Testing for Glass
ASTM C393 – Flexural Sandwich Composites Test Equipment
ASTM C580 – Flexural Modulus Elasticity Mortar Grout Polymer Concretes Test Equipment
ASTM C947 – Flexural Bend Glass Fiber Reinforced Concrete Test Equipment
ASTM D143 – Timber Clear Specimen Test Equipment
ASTM D2344 – short-beam testing of polymer matrix composite materials
ASTM D6272 – Four Point Flexural Bend Test Machine for Plastics and Insulating Materials
ASTM D7249 – Facing of Sandwich Testing by Long Beam Flexure Equipment
ASTM D7774 – Flexural Fatigue Test Equipment for Plastics
ASTM D790 – Testing for Flexural Properties of Plastics and Insulating Materials
ASTM F394 – Biaxial Flexure Strength (Modulus of Rupture) of Ceramic Substrates
ISO 178 – 3 Point Bend of Plastics | Flexural Test Machines & Equipment
ISO 6872 – Flexural Strength Dentistry Ceramics
ISO 7438 –  Bend Testing of Metal