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How wing tear testing is performed
Specimen geometry and preparation
Testing accuracy begins with correct specimen preparation. For wing tear tests, samples are cut into shapes with two projecting wings joined by a narrow central region where the tear initiates.
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Introduction to corrugated medium testing
Corrugated medium testing is a key process in the packaging industry, ensuring that materials used in box and carton production meet strict durability and performance standards.
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Understanding compressive properties
Compressive properties describe how a material responds to being pressed, squeezed or compacted.
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Rheological properties and their role
Rheology, the study of deformation and flow, is central to understanding extrusion behaviour. Key properties measured include:
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Standards for insertion and withdrawal testing
Adhering to industry standards ensures consistency, repeatability, and compliance. Key standards include:
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Standards and protocols
Notable standards and specifications
Several international standards define single lap shear testing methods:
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What is Ultimate Tensile Strength in Materials Testing?
Ultimate tensile strength (UTS) refers to the maximum stress a material can endure while being stretched before it fails.
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Best practice and future trends
Maintaining accuracy
Ensure reliable results by:
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Emerging standards and future developments
Mechanical torque testing continues to evolve alongside changes in manufacturing and material science. Key developments include:
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What is wing tear testing (Winkelmann/Graves method)?
Wing tear testing is a tensile-based method for flexible materials, in which a wing-shaped specimen is subjected to a controlled force until it tears.
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How is texture testing performed?
Common test types and measurements
Compression tests - assess firmness or hardness by applying a controlled force to compress the sample.
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TAPPI T 824 standard
Overview of the standard
TAPPI T 824 is the internationally recognised standard that specifies the procedures, equipment requirements, and specimen preparation methods for conducting
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Applications of the peel wheel test
The peel wheel test is relevant to industries where adhesion performance is critical to product function, safety, or durability.
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What is extrusion testing?
Extrusion testing involves forcing a food sample through a shaped orifice, grid, or opening while measuring the resistance to movement.
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Understanding compressive and tensile forces
Insertion and withdrawal testing focuses on two key force measurements:
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Testing methods for different materials
Rubber and elastomers
Rubber and elastomers are valued for their flexibility and resilience.
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VectorPro test definition
https://ahpublic.s3.eu-west-2.amazonaws.com/VectorPro/vcs/export/live/v…
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Common challenges in yield point testing
Specimen alignment issues
Misalignment during clamping can cause uneven stress distribution, resulting in inaccurate readings.
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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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Selecting the right running torque testing solution
When specifying a running torque test system, engineers should consider:
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ISO 34-2 standards explained
ISO 34-2 specifies the Delft tear test procedure for vulcanised or thermoplastic rubber, ensuring testing is carried out under consisten
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Introduction to material mechanics
Material mechanics is the study of how materials respond to forces such as tension, compression, torsion and shear. It is a core discipline within engineering, underpinning design, manufacturing and quality assurance across many sectors.
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Standards and compliance
International standards ensure penetration and puncture testing is performed consistently for reliable and comparable results.
Key examples include: