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Best practices for rotational shear testing
Consistent methodology, accurate equipment and adherence to relevant standards are essential for meaningful results. Recommended practices include:
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Shear testing equipment and procedures
Accurate shear testing requires precise control of movement, force measurement, and fixture selection.
Mecmesin offers:
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Interpreting breakaway test results
Understanding test outputs is as crucial as conducting the tests themselves.
Slip torque vs bridge torque
Slip torque reflects the resistance encountered before rotation begins—a measure of seal integrity and usability.
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Equipment and procedures
A flat crush tester comprises two smooth, parallel platens, one fixed and one moving under controlled load application. The conditioned specimen is placed between the platens with flutes oriented vertically.
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How peel wheel tests are conducted
Specimen preparation – The bonded material is cut to defined dimensions, ensuring uniformity of size and adhesive application.
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What is a three-point bend test?
A three-point bend test is a widely used method for determining the flexural properties of materials. It involves applying a load at the midpoint of a specimen supported at two points, creating a bending force.
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Methods of testing tensile strength
The most common method is the uniaxial tensile test.
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Mecmesin solutions for rotational shear testing
Mecmesin provides torque testing systems designed for high-precision, repeatable results in rotational shear testing.
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Selecting the right running torque testing solution
When specifying a running torque test system, engineers should consider:
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What is elongation at break?
Elongation at break measures how much a material can stretch before it fractures. Expressed as a percentage of the original gauge length, it is a key indicator of ductility and toughness.
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Springs
Springs are elastic objects used to store mechanical energy and they change shape in response to external forces, returning to their original shapes when the forces are removed.
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How shear testing works
Food shear testing replicates cutting or slicing actions. A blade or fixture is passed through a sample while the force required is recorded. The process generally includes:
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Tensile deformation and its significance
Tensile deformation occurs when a material is stretched by an axial load, causing it to elongate.
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Introduction to compression testing
Compression testing is a core mechanical test method used to evaluate how materials and products behave when subjected to a compressive load.
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Case studies and real-world examples
Mecmesin’s systems have been used across a range of industrial applications:
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Equipment for burst testing
The right equipment depends on the container type, material, and applicable standard.
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Understanding flexural strength
Flexural strength (modulus of rupture) refers to a material’s resistance to deformation under load.
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Speak to an Expert
Corrugated medium testing, and particularly the flat crush test under TAPPI T 809, is essential for ensuring packaging strength, reliability, and compliance.
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Standards and procedures
FCT results must be consistent and comparable, which is why the test is carried out to recognised standards:
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Key testing standards
Compliance with recognised international standards ensures that needle penetration testing is consistent, reliable, and repeatable across different facilities.
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Test setup and equipment
Performing lap shear testing under compression requires careful alignment and use of appropriate fixtures to prevent torsion or uneven load distribution.
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Methods of compressive burst testing
Inflationary burst testing
In this method, internal pressure is gradually increased using air, gas, or liquid until the container ruptures. This is widely applied to:
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Key standards for double rip tongue tear testing
ASTM D751-06 for coated fabrics
ASTM D751-06 defines test methods for coated fabrics, including the d
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The process of tension testing
Tension testing follows a defined process to ensure accuracy and repeatability:
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How is double lap shear testing performed?
Specimen preparation
Specimens are prepared according to standardised dimensions.