Bending Devices
Bending devices are mainly used to determine the elastic properties of brittle composite materials and ceramics, metals, wooden panels and rigid plastics as well as to analyze welded sheet metal.
For the selection of a bending device, various criteria have to be considered based on the test procedures and the standard specification:
- Procedure: 3-point or 4-point bending test or folding test
- Rigid, rotatable or tiltable bending fin and supports
- Dimensions & spacing of supports and fin
- Material, hardness
- Maximum bending force
- Accuracy of deflection
- Possible risks in case of breakage
Bending test and folding test methods
3-point bending test
- Simple test set-up for a variety of test methods
- Especially used for elastic materials
4-point bending test
- Constant bending moment between both support points (shear force-free area)
- Used mainly to determine the flexural modulus of elasticity of brittle materials.
Folding test
- Deformation always up to the plastic range
Application Videos Featuring Bending Devices
4-point Bending Test on Sandwich Materials
In accordance with ASTM C393
4-point Bending Test on Wood-based Materials
In accordance with EN 789
4-point Bending Test on Ceramics
In accordance with EN 483-2 (method A)
Second-hand accessories for material testing
Current selection of second hand testing machines, hardness testing instruments and accessories
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