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Standards for tear resistance testing
While the core principle of wing tear testing remains the same, each standard specifies unique specimen shapes, notch sizes and test speeds. Adhering to these requirements ensures results are valid and comparable.
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Differences and similarities to other corrugated tests
While TAPPI T 824 focuses on the intrinsic crush strength of pre-fluted medium, other common corrugated tests measure different performance factors:
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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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Introduction to ball burst strength testing
Ball burst testing measures the resistance of a material to rupture under localised force using a hemispherical probe.
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Introduction to T-peel testing
T-peel testing is a specialised method for determining the adhesive bond strength between two flexible materials joined together.
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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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Simplify data analysis in force, materials and torque testing
Test calculations are the values derived from raw measurement data, such as peak force, torque angle, or modulus of elasticity. With advanced software, these are now calculated instantly and with high precision, replacing error-prone manual methods.
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Introduction to compressive strength testing
Compressive strength testing is essential for evaluating the ability of materials to withstand axial loads, which are forces that push or pull them.
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Key applications of torque testing equipment
Torque testing is relevant across many packaging types:
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What is lap shear testing under compression?
Lap shear testing under compressive load is a mechanical test used to determine the strength of adhesive joints subjected to shear forces while under compressive stress.
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FAQs about compressive strength testing
How is compressive strength different from tensile strength?
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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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FAQs about torque to turn testing
What is the difference between breakaway and running torque?
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Introduction to torque testing
Torque testing is a vital part of packaging quality control.
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Peel test procedure - step by step
Prepare the specimen: Cut and condition according to the relevant standard.
Set up the machine: Install the correct fixture for the test type.
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Standards for the 90-degree peel test
The 90-degree peel test is defined by several recognised international standards, which provide consistent methodology and reporting requirements:
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Common challenges in packaging testing
Real-world conditions can introduce challenges to test accuracy. These include:
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What is cantilever bend testing?
Definition and purpose
Cantilever bend testing assesses a component’s flexural response by applying a controlled force at a set distance from a fixed end.
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Performing a five-point bend test
Specimen preparation
Cut specimens to the standardised dimensions specified in ASTM D2718.
Ensure surfaces are smooth and free from defects that could affect results.<
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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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Introduction to compressive shear testing
Compressive shear testing is a mechanical test method used to measure a material’s ability to resist shear forces while under compressive load.
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Industry-specific testing solutions
Strain at maximum stress testing is relevant wherever materials are expected to endure high loads without unacceptable deformation.
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What is lap shear testing under compression?
Lap shear testing under compressive load is a mechanical test used to determine the strength of
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Key mechanical testing methods
Short span compression testing differs from conventional compression tests because it uses a minimal support length to eliminate bending effects.
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What is four-point bend testing?
Four-point bend testing determines a material’s flexural strength and stiffness by applying force at two points between two supports.