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All test methods

Test method 05

Determination of the modulus of elasticity in bending and bending strength

What does this mean for you?

You can precisely measure how stiff and how strong in bending a material is and compare it with other solutions.

Laboratory specialist with a panel specimen at the universal testing machine
Standard
PN-EN 310
Material
wood-based panels over 3 mm
Specimen
width 50 mm, length 20 × t + 50 mm
Test duration
approx. 30 minutes for 12 specimens
01

Method description

The test makes it possible to determine two key mechanical properties of wood-based panels: bending strength and modulus of elasticity in bending.

The specimen, supported at two points, is loaded at mid-length – this is 3-point bending. The measurement is performed using a universal testing machine for static testing.

Before testing, the specimens are conditioned to constant mass at 20°C / 65% RH. During the test, the maximum force, bending strength and modulus of elasticity are determined.

The test is destructive – the specimen should fail within 60 ± 30 s.

Business impact: better selection of material for a specific application, a lower risk of structural problems and faster development of new products.

Operating the universal testing machine during a bending test
Video

See how the test is carried out

02

Test specimens

The method is intended for wood-based panels with a nominal thickness of more than 3 mm.

The dimensions depend on the nominal thickness t:

  • length: l = 20 × t + 50 mm
  • width: b = 50 ± 1 mm

The specimen length should range from 150 to 1050 mm.

The approximate test time for a set of 12 specimens is about 30 minutes.

Benefit: within a short time you can obtain data for a direct comparison of the mechanical properties of different materials, using only a small amount of material.

03

Test standard

The test is performed in accordance with PN-EN 310.

Benefit: mechanical parameters are determined according to a standardised procedure, which makes it possible to control and compare materials reliably.

04

Applications of the test method

  • Wood industry and manufacturers of wood-based panels

    Control of the mechanical properties of plywood, particleboard including OSB and other wood-based panels, and use of the results in Factory Production Control (FPC).

  • Construction

    Comparison of the mechanical properties of panels intended for building and structural applications.

  • Furniture industry

    Assessment of the stiffness and strength of materials used in furniture structures and furnishing elements.

  • Transport

    Comparison of panel materials intended for vehicle fit-out elements in which mechanical properties are important.

  • R&D and material manufacturers

    Validation of new panel constructions, comparison of technological variants and assessment of the impact of product changes on its mechanical properties.

The test makes it possible to:

  • determine bending strength
  • determine the modulus of elasticity
  • compare the stiffness of different materials
  • assess the impact of technological changes on mechanical parameters
  • support Factory Production Control
  • carry out R&D work and material validation
Placing a panel specimen in the universal testing machine

Instead of assuming that a material is strong enough, you can measure and compare its properties.

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