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Puncture resistance testing methods
Puncture resistance measures the ability of a material to withstand an actual perforation event, simulating damage from sharp or pointed objects.
Applications include:
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What is shear modulus?
Shear modulus defines a material’s resistance to shape change under shear forces - where parallel planes slide past one another.
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Standards and specifications
Fastening torque testing is governed by international and sector-specific standards to ensure consistency and repeatability:
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Equipment and tools used in testing
Accurate elongation and recovery testing requires tensile testing machines capable of precise load application and displacement measurement. Important features include:
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Understanding shear testing in tension
Shear testing in tension is a mechanical method used to measure the resistance of a material or bonded joint to forces acting parallel to the bonding surface.
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Applications in safety requirements
Cone penetration testing is primarily used to confirm that child use articles resist penetration by sharp or pointed objects during normal use and foreseeable misuse.
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Test method and procedure
Preparing specimens
Material selection - Use representative samples from the batch being tested.
Cutting - Prepare specimens to the exact dimensions specified in
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Testing Procedure
Performing the needle penetration and drag test involves several steps:
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Benefits of extrusion testing
Extrusion testing delivers measurable benefits for food production:
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Speak to an expert
Closure torque testing is vital for ensuring that packaging remains secure, protects contents, and is user-friendly.
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Why removal torque is important
Removal torque is critical to packaging performance and user experience.
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Measuring compressive modulus
Common testing methods
Internationally recognised standards specify how compressive modulus is measured for different material types and applications:
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Applications across industries
Equibiaxial flexure compression testing is used wherever material reliability under multi-directional stress is critical.
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Introduction to secant modulus
In material testing and engineering, understanding how a material responds to applied stress is essential for predicting performance, ensuring safety, and optimising design.
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Introduction to short span compression tests
The short span compression test (SCT) is a mechanical testing method used to measure the compressive strength of materials over a very short span.
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Compression testing and its applications
Compression testing measures how a material behaves when subjected to forces that reduce its size.
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Standards and compliance in texture testing
Food industry standards
ISO 11036 - sensory analysis for food texture profile methodology
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Industry applications
Dairy products
For butter, ISO 16305 compliance confirms product consistency.
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Understanding and interpreting test results
Box crush testing provides clear, measurable data to inform design and compliance decisions:
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Introduction to bridge torque
Definition and importance
Bridge torque refers to the rotational force required to shear the tamper-evident bridges or lugs that connect a screw cap to its locking ring.
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What is bulk analysis testing?
Definition and purpose
Bulk analysis testing assesses the mechanical properties of particulate materials as a collective whole, rather than analysing individual particles. This includes powders, granules, pellets and similar materials.
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Importance of child-resistant closures
Child-resistant closures are a critical safety feature for packaging containing pharmaceuticals, che
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ASTM and ISO approaches
ASTM D1938 specifies trouser tear testing for thin plastic films and sheeting, including specimen dimensions, pre-cu
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Industry standards and compliance
Running torque tests are often performed in line with established industry standards to ensure comparability and acceptance. Relevant examples include:
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Key features and advantages
The strip method offers a number of engineering advantages: