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Apparent Interlaminar Shear Strength by Short-Beam Method (ISO 14130)

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 dependant 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.

About This Solution

Related Standards: ISO 14130
Specimen Type: Rectangular
Materials: Composites
Type of Test: Shear
Business Sector: Aerospace and Suppliers | Automotive/Truck/Rail/Shipbuilding
ILSS Fixture

ISO 14130 Graph and Results
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Related Literature:

3300 Series Single Column Models   3300 Series Single Column Models
5900 Series Brochure   5900 Series Brochure
Bluehill 3 Composites Application Module   Bluehill 3 Composites Application Module
Bluehill 3 Testing Software Brochure   Bluehill 3 Testing Software Brochure
Composite Test Fixture Flexural and Interlaminar Shear   Composite Test Fixture Flexural and Interlaminar Shear

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