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1101
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Test setup and equipment
Performing lap shear testing under compression requires careful alignment and use of appropriate fixtures to prevent torsion or uneven load distribution.
1102
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Understanding cone penetration testing
Cone penetration testing is a precision method used to determine a material's resistance to penetration by a standardised cone-shaped probe under specific force conditions.
1103
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Understanding tear strength and its importance
Tear strength measures the force a material can withstand before a tear propagates. It covers both the initial rupture and the resistance to further tearing once damage has started.
1104
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Interpreting breakaway test results
Understanding test outputs is as crucial as conducting the tests themselves.
Slip torque vs bridge torque
Slip torque reflects the resistance encountered before rotation begins—a measure of seal integrity and usability.
1105
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Standards and compliance
ASTM D2063 defines methods for determining application and r
1106
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Understanding ASTM D2718 standards
The ASTM D2718 standard sets out the procedures for conducting planar shear tests on structural panels using the
1107
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Understanding reverse ratchet torque
Reverse ratchet torque testing is an essential process for verifying the safety and reliability of child-resistant closures (CRCs).
1108
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Introduction to flexural testing
Flexural testing is a core method in materials science, used to evaluate how materials perform when subjected to bending stresses.
1109
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Introduction to strip method tensile testing
Among the range of tensile testing techniques, the strip method is widely recognised for its accuracy and repeatability.
1110
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Puncture and shear testing techniques and equipment
Testing involves applying a force to a clamped specimen until the material fails, with the method determined by the applicable standard.
1111
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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.
1113
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Introduction to five-point bend testing
The five-point bend test is a specialised method for assessing the mechanical performance of structural panels, particularly their resistance to planar shear forces.
1114
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Case studies in puncture resistance testing
Protective clothing - A glove manufacturer used high-force puncture testing to optimise material layering, achieving compliance with ASTM F1342 and ISO 13996 while maintaining f
1115
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Tools (calibration related)
To maintain consistent performance and accuracy, tools must be checked regularly.
1116
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Introduction to extrusion testing
Extrusion testing is an essential method in the food industry for measuring the texture and flow behaviour of semi-solid and visc
1117
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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.
1118
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Standards and protocols
Notable standards and specifications
Several international standards define single lap shear testing methods:
1119
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The science behind chord modulus
Definition and importance
Chord modulus is determined by drawing a straight line, known as the chord, between two points on the stress-strain curve.
1120
Sensor
Sensors - Universal Testers (ELS)
Sensors
The OmniTest universal testers use Mecmesin's range of high-resolution precision Enhanced Load Sensors (ELS) to record tensile and compressive loads.
ELSA precision loadcell connects directly to an OmniTest or MultiTest-dV stand and communicates…
1121
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What is strip torque testing?
Definition and importance
Strip torque testing measures the torque required to continue rotating a threaded closure beyond its normal sealing point until the thread strips or the closure fails.
1122
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ASTM D2919
This test method covers data for assessing the durability of adhesive lap-shear joints while stressed in contact with air, air in equilibrium with certain solutions, water, aqueous solutions, or other environments at various temperatures.
1123
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BS EN 13411-3
This European Standard deals with the requirements for ferrules for the ferrule-securing of eyes and endless loops - it applies to slings and assemblies using steel wire ropes for general lifting applications up to and including 60mm diameter conforming
1124
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ASTM F1269-06
These test methods cover tests to determine the shear strength of a series of ball bonds made by either thermosonic or thermal compression techniques using either gold or copper wires.