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[Page extract]
Key methods of penetration resistance testing
Penetration resistance measures a material’s ability to resist intrusion by a probe or object under applied force without tearing, cracking, or losing functional integrity.
Applications include:
427
[Page extract]
What is Young’s modulus?
Young’s modulus - also known as the modulus of elasticity or elastic modulus - defines how stiff a material is when a force is applied.
428
Product
Perfect binding adhesive strength tester
Page Pull Tester
802-001+853-415
The Mecmesin 'Pira' Page Pull Tester is used in over 100 binderies across the world.
It provides a robust, economical and reproducible method of measuring the page pull strength of perfect-bound books.
By enabling an efficient binding endurance test, the…
429
Case study
Electrical harness terminal testing
Requirement
Cyprium Motorsports based in Diss, UK, design and produce customised wiring harness systems for sports cars, including Formula 1, Le Mans Prototype, Grand Touring and rally cars.
430
Case study
Electrical assembly component strength
Customised engineering example
Due to the complex, asymmetric shapes of electrical assemblies, it can be difficult to grip the soldered, fused and welded parts in a way that mimic the forces applied when in use.
431
Event
Compression Testing in Top Load Applications
A typical challenge in packaging, and bottling applications is trying to balance product integrity, where the container might be too weak and crush under load, and excessive raw material cost, where the container is too strong.
432
[Page extract]
Key methods of penetration resistance testing
Penetration resistance measures a material’s ability to resist intrusion by a probe or object under applied force without tearing, cracking, or losing functional integrity.
Applications include:
433
Sensor
AFTI - Force sensors
Force sensors
The AFTI and AFG are versatile force and torque indicators designed for use with the Mecmesin range of 'Smart' tension and compression loadcells.
Readings are displayed as live values with peak-hold function in both tension and compression.…
434
[Page extract]
Measuring compressive modulus
Common testing methods
Internationally recognised standards specify how compressive modulus is measured for different material types and applications:
435
Case study
Essai d'arrachement des attaches ou de noeuds sur les vêtements
Exigence
Le client était un fournisseur du grand détaillant de vêtements britannique Marks & Spencer, qui stipulait que toutes les attaches et tous les accessoires devaient être testés à l’échec.
436
Case study
Solenoid testing
Requirement
Parmeko is a Leicester-based designer and manufacturer of proportional solenoids, on-off solenoids and holding magnets used in mobile and industrial fluid power applications, as well as a range of specialised solenoids manufactured
437
Case study
Système d'étalonnage pour sertissage sur DM de suture médicale
Exigence
Un certain nombre de dispositifs qui «sertissaient» une aiguille recourbée à un fil médical fin devaient être testés. La force de sertissage est appliquée horizontalement en tirant sur un levier d'un système manuel.
438
Case study
Card and paper crease line testing
Customised engineering example
A packaging production company needed to test the crease force of the ink-coated card used in their fully-enclosed cartons.
439
[Page extract]
How is top-load testing performed?
Equipment and setup
The essential equipment for a top-load test includes:
440
Case study
Force de traction du raccord Luer sur la seringue
Exemple d'ingénierie sur mesure
Les adaptateurs Luer Lock en polycarbonate sont montés en raccord rapide sur les buses en verre pour seringues.
441
[Page extract]
Standards for three-point bend testing
Three-point bend testing is governed by established international standards, including:
442
Case study
Essais sur neutralisation de la sécurité de portes de train
Exemple d'ingénierie sur mesure
Un opérateur ferroviaire britannique avait besoin d’une méthode permettant de vérifier leurs portes coulissantes de wagon et la sensibilité à la détection d’un obstacle lors de la fermet
443
[Page extract]
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.
444
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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.
445
[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
446
Case study
Soldered flexi-circuits tensile test
Requirement
The customer was a manufacturer and developer of braking systems for the heavy goods vehicle, bus and truck industries.
447
Case study
Insulation film stiffness testing
Customised engineering example
Familiar with three-point bending to test flexural strength properties?
448
Case study
Thermostatic Radiator Valve (TRV) operational torque
Requirement
In the drive to continue to be class-leading in quality, durability and customer satisfaction, the New Product Development (NPD) department sought to leverage their expertise in the subjective assessment of the optimal tactile chara
449
[Page extract]
The process of tension testing
Tension testing follows a defined process to ensure accuracy and repeatability:
450
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Standard methods and procedures
T-peel testing is governed by recognised standards to ensure consistency and repeatability of results. The most common are: