| Composite Durability Test Methods
MERL staff keep an active presence in Standards communities and
participate in round robins to keep at the forefront of new developments.
While MERL can and does conduct Standard test methods such as ASTM
D30, ISO, CRAG and other methods. It is more specialised in developing
new service performance related tests to simulate
the loading on the composite more accurately than does a standard
test. This often requires developing the test component, test fixture
and test
methods,
often while incorporating specific environmental conditions. The
service offered extends from initial materials evaluation and selection
studies,
through
process characterisation, materials performance, component design
and expected service life estimates.
These tests are carried out on the range of test equipment at MERL
and include the following capabilities:
- Tension/compression/torsion stiffness and strength
- Standard and specialised prototype tests
- Structural sub-component and sub-element tests
- Fatigue, creep, abrasion, impact, hardness testing
- Biaxial and multi-axial loading (up 250kN)
- Mechanical testing at -55°C to 175°C
- Hot/wet fatigue testing
- Exposure to oil field and chemical processing fluids (including concentrated
acids and alkalis) and environments up to 10,000psi and 250°C
- Accelerated ageing and environmental conditioning bespoke to the application
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