ASTM D143, ISO 3133, EN 310 Wood Bend Testing

This testing solution references ASTM D143, ISO 3133, and EN 310, which all dictate the testing procedures for flexural testing of wood beams. Wood is often used an engineering material in the construction and furniture industries, meaning it will see various types of loading applications. Flexural testing is an ideal test because it encompasses tensile, compressive, and shear loading within the specimen; providing the most realistic use case of the material. Bend testing is the best way to compare different wood types between each other, which is often required for choosing the right material. The most common required calculations are flexural strength and shear strength.

The different standards may have slightly different requirements which can make complying with multiple standards a challenge to achieve. For example, ASTM D143, states that the lower support anvils of the three-point static bend fixture should be provided with bearing plates and the load should be applied to the center of the specimen by a rigid upper block. However, ISO 3133 states that the support and load applying anvils should be rollers of a specified diameter. A typical test set up would be to use either a 3300 or 5900 series electromechanical dual column testing machine configured with the 2820 series base beam and three-point anvil set for this test. In addition, a yoke deflectometer is available for measuring bending deflections with respect to the neutral axis, as specified by ASTM D143.

The challenges of testing to these standards are:

Performing a flexural test according to the specifications of the standard
Recording the required amount of data points to accurately detect drops in load due to crack formation and propagation within the material

Instron's Solution:

Performing the tests according to the specifications of the standard - The modular design of the 2820 series of fixtures provides maximum flexibility by offering a range of optional anvils and four-point conversion kits, each complying with different standards
Recording the required amount of data points - Bluehill^® Universal allows the user to adjust the data sampling rate of the software, up to 2.5 kHz in order to capture the most data points

It is important to review ASTM D143, ISO 3133, and EN 310 in order to fully understand the test setup, procedure, and results requirements

Wood Bend Fixtures - Series 2820

The 2820 Series of wood bend fixtures are designed in accordance with common International Standards for performing flexure tests on a range of wood products.

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11/19/2008
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Bluehill® Universal Software

Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: and Instron Connect – a new feature that provides a direct communication link to Service. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.

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2/26/2017
4.4 MB

5900 Series Premier Testing Systems Brochure

5900 Universal Testing Systems are engineered for precision, built for durability, and offer the flexibility for changing requirements. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. A wide range of models are available for testing capacities from < 100N up to 600kN.

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1/22/2019
6.8 MB

3300 Series - Affordable Testing Solutions

Instron 3300 Series Universal Testing Systems for Tensile, Compression, Bend, and other material property tests.

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6/19/2017
2.2 MB

ASTM D143, ISO 3133, EN 310 Wood Bend Testing

Specimen

Materials

Test Types

Standard

Wood Bend Fixtures - Series 2820

Bluehill® Universal Software

5900 Series Premier Testing Systems Brochure

3300 Series - Affordable Testing Solutions

ASTM D143, ISO 3133, EN 310 Wood Bend Testing

Specimen

Materials

Test Types

Standard

Wood Bend Fixtures - Series 2820

Bluehill® Universal Software

5900 Series Premier Testing Systems Brochure

3300 Series - Affordable Testing Solutions

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