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1301
[Page extract]
Introduction to penetration and puncture resistance testing
Penetration and puncture resistance testing are essential for evaluating how well a material can withstand force from sharp, pointed, or blunt objects.
1302
Event
Tensile Testing for Wiring Harness Connections
The only way of really knowing the strength of a crimped terminal is to pull it. This can reveal production problems, where strand nicks, incorrect crimp height, or effects from changes in terminal supply, may not be clearly apparent.
1303
[Page extract]
Medical devices and aids
Medical device manufacturers operate in one of the world’s most competitive and highly-regulated industries, where patient safety is critical.
1304
Case study
Semi-automated penetration testing into plasterboard
Customised engineering example
British Gypsum (now Saint-Gobain) carry out repetitive penetration tests to accurately assess the performance and durability of their products.
1305
[Page extract]
Grab method vs strip method
Compared with the strip method (as defined by ISO 13934-1), which grips the full width of the fabric, the grab method
1306
[Page extract]
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.
1307
[Page extract]
Introduction to single lap shear testing
Single lap shear testing is a widely used method for determining the shear strength of an adhesive bond between two overlapping materials.
1308
[Page extract]
ASTM D4833-07
This test method is an index test for determining the puncture resistance of geomembranes and related products. The use of this test method is to establish an index value by providing standard criteria and a basis for uniform reporting.
1309
Event
Tensile Testing for Wiring Harness Connections
The only way of really knowing the strength of a crimped terminal is to pull it. This can reveal production problems, where strand nicks, incorrect crimp height, or effects from changes in terminal supply, may not be clearly apparent.
1310
Case study
Automotive window winder turning effort
Requirement
The customer requested a portable system which would quickly and easily allow him to test the torque required to open and close windows in a car.
1311
Event
Tensile Testing for Wiring Harness Connections
The only way of really knowing the strength of a crimped terminal is to pull it. This can reveal production problems, where strand nicks, incorrect crimp height, or effects from changes in terminal supply, may not be clearly apparent.
1312
[Page extract]
Students meet the Mecmesin MultiTest
Having spent time with the Mecmesin team and seen their material testers in action, WPI opted to invest in three Mecmesin MultiTest 2.5-dV testers.
1313
[Page extract]
Best practices in conducting cone penetration tests
Step-by-step procedure
Sample preparation - Condition the sample according to the standard, controlling temperature and humidity where required.
Equipment calibration - Confirm the
1314
[Page extract]
Measurement and testing methods
Techniques for measuring tangent modulus
Tangent modulus is measured during tensile or compression testing, w
1316
[Page extract]
Understanding the stress-strain curve
The stress-strain curve is a primary tool for tensile strength analysis. It shows how a material responds to an increasing tensile load, providing detailed insights into its mechanical properties.
1317
[Page extract]
Introduction to chord modulus
Chord modulus is a key parameter in material testing, providing engineers and quality control teams with a precise measure of a material’s stiffness under defined loading conditions.
1318
[Page extract]
What is the box crush test?
The box crush test (BCT) is a widely used method for measuring the compressive strength of fibreboard packaging, particu
1319
Case study
Child resistant closures (CRC) mandrel
Customised engineering example
Child Resistant Closures (CRC) require sufficient vertical force to activate the CR locking mechanism prior to torque being applied.
1320
[Page extract]
Common test methods and standards
Internationally recognised standards ensure that compressibility and recovery testing is consistent and repeatable across laboratories and production sites.
1321
[Page extract]
Applications across industries
Compressive hardness testing is applied in many sectors to confirm that materials meet performance and safety criteria.
1322
[Page extract]
Introduction to yield point testing
Yield point testing is essential for understanding the mechanical behaviour of materials.
1323
[Page extract]
Destructive and non-destructive methods
Testing may be performed destructively or non-destructively depending on the objectives.
1324
[Page extract]
Introduction to penetration and puncture resistance testing
Penetration and puncture resistance testing are essential for evaluating how well a material can withstand force from sharp, pointed, or blunt objects.
1325
Case study
Medical devices testing
Requirement
To provide a low cost, flexible tensile test machine which could be used in conjunction with special fixturing, to perform a range of functional and destructive tests on a range of products.