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Types of peel tests
90° peel test
This method is used for flexible-to-rigid bonds, where the flexible layer is peeled away at a right angle to the substrate. It is common for:
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Compression testing standards
Following recognised standards ensures test data is reliable and comparable. Standards specify specimen preparation, testing speeds, calculations and reporting methods.
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Why is texture testing important?
Texture testing ensures consistent product performance, supports process control, and validates compliance with industry standards. Even small changes in raw materials, processing conditions, or environmental factors can alter texture.
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Understanding peel resistance
Peel resistance is the force required to separate two bonded surfaces through a peeling motion. This force is measured using a tensile test system equipped with a peel fixture.
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Introduction to single rip trouser tear testing
Single rip trouser tear testing is a method used to measure a material’s ability to resist the propagation of a tear once it has started.
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Key properties measured in tensile testing
While ultimate tensile strength is the headline result, tensile testing also measures:
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Overview of TerraFixing
TerraFixing is dedicated to combating climate change through affordable and scalable Direct Air Carbon Capture (DAC).
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How bridge torque is measured
Bridge torque is measured by applying rotational force to a closure until the tamper-evident bridges shear.
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ECT vs BCT
While ECT measures the compressive strength of the board material, the box compression test (BCT) measures the strength
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Understanding test types
Material testing uses a variety of methods to assess different mechanical properties. Selecting the right test depends on the intended application and relevant standards.
Examples include:
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Yield point testing methods
Yield point testing is most often performed using tensile testing, in which a specimen is subjected to a steadily increasing axial load until plastic deformation occurs.
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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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Interpreting test results
Peel strength is typically reported in newtons per metre (N/m) or per 25 mm of bond width (N/25mm), depending on the industry standard. From the force-displacement graph, the following characteristics are analysed:
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Frequently asked questions
How do I select the right fixture for my material?
Fixture selection depends on specimen dimensions, material type, and the relevant standard.
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Key puncture resistance testing methods
Different materials and applications require different puncture testing methods. The two most common categories are high-force puncture testing and slow puncture testing.
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Key testing methods
Different materials require different approaches to compressive hardness testing. The most common methods are:
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The standard specifies the procedures for measuring the force required for needle penetration and the drag force as the needle travels through a simulated skin or tissue.
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FAQs about Young's modulus testing
What is the difference between Young’s modulus and tensile strength?
Young’s modulus measures stiffness - how much a material deforms under stress.
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Mecmesin equipment for torque to turn testing
Mecmesin offers a range of precision torque test systems, including the OmniTest and
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Industry applications of flexural testing
Plastics and thermoplastics
Flexural testing reveals the stiffness, yield point, and failure mode of plastics, informing mate
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Common challenges in fastening torque
Believing tighter is always better, leading to over-torquing.
Ignoring lubrication effects, which can reduce the torque needed for the same clamping force.
Relying on uncalibrated hand tools, which can produce inconsistent res
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Equipment and procedures
A flat crush tester comprises two smooth, parallel platens, one fixed and one moving under controlled load application. The conditioned specimen is placed between the platens with flutes oriented vertically.
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Introduction to tensile strength
Tensile strength is a fundamental mechanical property that defines a material’s ability to resist forces that attempt to pull it apart. It represents the maximum tensile stress a material can withstand before failure.
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How is torque to turn testing performed?
Torque to turn testing typically involves mounting the test specimen in a secure fixture, aligning the axis of rotation, and applying torque until the component begins to move.