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Key methods for compressive strength testing
Several methods are used to determine the compressive strength of materials, and the appropriate test depends on the material and the specific industry requirements.
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How is the trapezoidal tear test performed?
A standard trapezoidal tear test follows a consistent sequence:
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Test method and procedure
In a climbing drum peel test, one end of a bonded specimen is clamped to a rotating drum while the other end is fixed to the crosshead of the test machine.
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Case examples
Catalyst pellet crush strength - A petrochemical manufacturer evaluated catalyst pellets using radial crush testing.
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Step-by-step guide to conducting a CMT test
Prepare the specimen - Cut to size with clean edges, ensuring flutes remain undamaged, and condition as per the standard.
Calibrate the equipment - Check the load cell and platen alignment.
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Standards for flexural testing
Consistency in flexural strength testing is achieved through compliance with recognised standards, which define specimen dimensions, loading rates, and reporting requirements.
Key standards include:
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Torque testing standards
A range of recognised standards define the correct procedures for reverse ratchet torque testing, ensuring consistent and reliable results.
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Methods for lap shear testing
Single lap shear test procedure
In a single lap shear test, two specimens are bonded with an adhesive in an overlapping configuration.
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Equipment and procedures
SCT testing equipment and tools
Accurate SCT testing requires equipment that can apply controlled and repeatable loads:
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Introduction to rotational shear testing
Rotational shear testing is a specialised method used to measure the torque or twisting force required to deform a material or component.
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Introduction to penetration and puncture resistance testing
Penetration and puncture resistance testing are essential for evaluating how well a material can withstand force from sharp, pointed, or blunt objects.
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Relevant textile test standards
The strip method is defined in several national and international standards, each tailored to specific fabric types and performance requirements:
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Case studies and real-world examples
Food sachet packaging
In a recent study, our equipment was used to test the burst strength of multilayer foil sachets used for single-serve food products.
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Types of calculations handled
Mecmesin’s VectorPro software supports a wide range of test calculations, automatically derived from mechanical testing data:
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What is the trapezoidal tear test?
The trapezoidal tear test is a mechanical method used to determine the tear strength of flexible sheet materials.
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Flat crush of corrugated medium (CMT test)
The flat crush test, also known as the Concora Medium Test (CMT), measures the maximum force a corrugated medium can withstand before flute collapse. In CMT testing, the medium is first formed into flutes using a laboratory fluter before testing.
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Understanding reverse ratchet torque
Reverse ratchet torque testing is an essential process for verifying the safety and reliability of child-resistant closures (CRCs).
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Industry-specific test standards
ISO 9895 - packaging materials
ISO 9895 specifies the method for determining the compressive strength of paper and b
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Loop tack test procedure
Sample preparation
Cut adhesive strips to the required length and width stated in the chosen standard. Condition the samples at the specified temperature and humidity before testing.
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Application of standards in puncture testing
Standardised methods ensure test consistency and reliability across laboratories and production sites.
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Case study
Essai de résistance à l'écrasement des pastilles de catalyseur
Exigence
Les catalyseurs sont largement utilisés dans les processus industriels où les problèmes de rendement et de temps sont essentiels pour former un produit le plus rapidement possible.
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Standard methods and procedures
T-peel testing is governed by recognised standards to ensure consistency and repeatability of results. The most common are:
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Software
Logiciel d'essai de couple VectorPro
Logiciel VectorPro
VectorPro est un logiciel avancé d'essais de couple développé pour effectuer des essais de couple sur des composants et des produits. Il permet de saisir les données de mesure sous forme graphique et de partager rapidement des rapports…
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ASTM D5934-02
ASTM D5934 specifies the use of controlled rate of loading mechanical instrumentation on rectangular plastic bars molded directly or cut from sheets, plates, or molded shapes via three-point loading bending techniques to obtain material properties such