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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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Real-time data analysis and reporting
Mecmesin’s software platform offers live monitoring and evaluation of test performance:
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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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Key standards for equibiaxial flexure testing
Internationally recognised standards ensure accuracy, repeatability, and comparability of results. Common references include:
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Significance of connector extraction resistance
Extraction resistance is the connector’s ability to maintain a secure fit during use while still allowing disconnection when necessary. This is especially important where connectors are repeatedly mated and unmated, such as:
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Step-by-step needle penetration testing process
Sample preparation
Specimens are cut to the required dimensions and conditioned to the specified environmental parameters such as temperature and humidity. Thickness and surface finish are controlled for consistency.
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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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How running torque is measured
Running torque is typically measured using precision torque sensors mounted within a controlled test stand. The component under test is rotated at a defined speed, and torque is measured continuously during motion.
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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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What is torque testing?
Torque testing measures the rotational force required to turn or twist an object. In packaging, it is most often applied to closures such as caps, lids and twist-top mechanisms to ensure they open and close within defined performance limits.
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Standards for 180 degree peel testing
A number of standards define the correct method for performing a 180 degree peel test.
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The concentric ring method
The most widely used approach to equibiaxial flexure compression testing is the concentric ring method. A circular specimen is supported on an outer ring and loaded through a smaller, concentric inner ring.
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Physiology
We exert force and torque with our muscles in almost all our everyday activities.
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Product
Motorised torque tester
Vortex-dV
876-601
The Vortex-dV is a versatile, robust, stand-alone torque tester, rated to 10 N.m. Easy to use, it is suited for routine quality control checks in a production or lab environment.
Configure this motor-driven stand with a torque sensor connected to a…
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How tension testing is performed
Tensile strength testing
Tensile strength testing follows established international standards such as ISO 527 and ASTM D63
391
Case study
Magnet pull tester
Requirement
Magnetic separators trap and remove ferromagnetic foreign bodies from product streams, in order to guarantee high product quality and prevent damage to machinery and processing equipment.
392
Case study
Clothing button pull-off TTF test
Requirement
The customer was a supplier to major UK clothing retailer Marks & Spencer, who stipulate that all fasteners and attachments must be tested to failure.
393
Case study
Automotive external mirror deformation tests
Requirement
Murakami Ampas (Thailand), is a major supplier of mirror systems to the automotive industry.
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PD CEN/TR 17394-3
This document defines a test method for security of attachment of functional and decorative metal mechanically applied press fasteners to children's clothing including for example gloves, hats, scarves, hosiery, ties, and textile belts.
395
Event
Rice Texture Analysis
Rice is a staple food for billions of people worldwide, and its quality is intrinsically linked to its texture.
396
Case study
Fast food tray crush testing
Requirement
As a supplier of fast food trays, the customer needed to make sure that the trays would withstand a certain lateral force without damage to ensure they did not break when being handled and loaded with food.
397
Case study
90 degree peel test filter paper
Customised engineering example
Floating roller peel jigs are regularly used for testing laminates where the backing sheet is rigid and the facing sheet is flexible (e.g. security cards)
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Page
Accessory catalogue
Choosing your accessories
To achieve accurate test results it's important that your sample is gripped and held correctly.
399
Case study
Bulk liquid carrier closures
Customised engineering example
Our client manufactures liquid bulk carriers fitted with two-part plastic valve closures. The collar is welded to a plastic bag, and the valve closure is fixed onto it by a compression joint.