ISO 14130 | Composites | Bend Testing
ISO 14130 is a testing standard designed to measure the apparent interlaminar shear strength of fiber-reinforced plastic composites with a thermoset or a thermoplastic matrix by the short-beam method. The apparent interlaminar shear stress is the stress acting on the neutral plane of the specimen. The apparent interlaminar shear strength is the value of the apparent interlaminar shear stress at failure or at the maximum force reached. Interlaminar shear force is loaded on the rectangular specimen as a simple beam fixture in flexure. The calculations that can be derived include maximum load, apparent interlaminar shear stress and shear strength. Before conducting ISO 14130, it is important to read the entire specification in the relevant ISO publication.
ISO 14130 | Composites | Bend Testing
- Prepare at least 5 test specimen as described in the standard.
- Measure the width and the thickness at the mid-point of each specimen. The span length of the fixture should be 5 times the thickness of the specimen at the mid-point. The support radii should be 2 mm (0.08 in) and the anvil radius should be 5 mm (0.2 in). Make sure the width of the supports is greater than the width of the test specimen.
- Place the specimen on the bend fixture.
- Apply the load uniformly mid-way between the supports until the maximum force is reached or the specimen breaks.
- Apparent Interlaminar Shear Stress (in MPa)
- Apparent Interlaminar Shear Strength (in MPa)
ISO 14130 | Composites | Bend Testing
| ISO 14130 | Recommended Equipment |
|---|---|
| Testing System | |
| Fixturing |