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
- 225.4 KB
Bluehill Universal 新一代测试软件
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5900 Series Brochure
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- 12/13/2012
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英斯特朗 3300 系列电子万能材料试验机
3300系列测试机器是专门为满足标准化和日常测试的要求而开发的。该系列产品能够以最经济的价格为用户提供 Instron一如既往的出色质量
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- 8/9/2013
- 1.9 MB