ISO 14130 Determination of Apparent Interlaminar Shear Strength by Short-Beam Method
The ISO 14130 test method covers the determination of the apparent interlaminar shear strength (ILSS) of fiber-reinforced plastic composites by the short-beam method. The method is suitable for composites with either a thermoset or thermoplastic matrix. The data obtained is not suitable for determining the design parameters, but it can be used for screening materials or for quality control. So with the various test samples there will also be variation on the failure mode, which is dependent on the fiber lay-up procedures used during manufacturing.
Our CP106682 shear fixture consists of a bar of rectangular cross section with two supports which the sample is placed with the loading member midway between the supports. The fixure incorporates a guided upper anvil to ensure parallel loading of the specimen. This test procedure has a smaller test span and the specimen thickness ratio is adopted to increase the level of shear stress relative to the flexural stress in the test specimen to encourage interlaminar shear failure.
We recommend testing with either the 3300 or 5900 Universal Testing Instruments with our dedicated Bluehill® 3 Software modules for this application, as it can easily be configured with any of the other common composite test applications, such as tensile, flexural, and compression.
We recommend reviewing the ISO 14130 in full to understand the test fixture and results requirements relevant to the materials you are testing.
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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Bluehill® 3 is the newest version of Instron’s widely popular Bluehill Software, designed to meet the demands of any level of user from educators and test technicians to, quality engineers and laboratory managers. Compatible with 5900, 3300 and 5500 systems.
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The Bluehill 3 Composites Application Module includes a collection of pre-configured test methods and supporting documentation that cover a variety of internationally recognized industry standards; such as ISO 14125, ISO 14126, ISO 527-4, ISO 527-5, ASTM D3039, ASTM C365, and more.
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The 3300 single column models have been developed to address the requirements of standardized and routine testing. These models provide the user with Instron quality at the most affordable price. Load capacity from 0.5 kN to 5 kN with a maximum speed of 1000 mm/min. These systems conform to all relevant European standards and carry a CE mark.
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Interlaminar shear testing is a simple test on, easy to prepare, polymer composite specimens that gives a measure of the strength of the bond between fibers and matrix. Another common test for polymer composites is flexure testing. The Instron® Modular Flexural and Interlaminar Shear Strength (ILSS) bend fixture system, with a range of interchangeable anvils, is suitable for testing to a number of international standards, including ASTM D2344, D790, EN 2562, EN 2563, ISO 14125, and ISO 14130.
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