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Hook and loop strength testers, often called Velcro fatigue testers, measure the shear and peel strength of fasteners after repeated use. These testers, such as the Unuo Instruments UI-FT35, Amade-Tech Velcro Fatigue Tester, or similar devices, simulate opening/closing cycles to evaluate performance degradation over time, usually via ASTM D5170 (peel) or ASTM D5169 (shear) standards.
This video explains how Velcro works, showing the hook and loop mechanism:
Key Types of Hook and Loop Testing
- Peel Strength Tester: Measures the force required to separate the hook and loop at a 90 or 180-degree angle.
- Shear Strength Tester: Measures the force required to separate the fastener by pulling the two pieces across each other in opposite directions.
- Fatigue/Cycle Tester: Repeatedly opens and closes the fastener, often using rollers, to simulate long-term wear, as described in the Unuo Instruments Velcro tape fatigue tester.
Common Standards and Machines
- ASTM D5170: Standard Test Method for Peel Strength.
- ASTM D5169: Standard Test Method for Shear Strength.
- EN 12242: European standard for peel strength of touch-and-close fasteners.
- JIS L3416: Japanese Industrial Standard for hook and loop fasteners.
- Manufacturers: Typical testing machines are produced by companies like Unuo Instruments, Amade-Tech, TESTEX, and GESTER.
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ASTM D5170 T Peel Strength of Hook and Loop Touch ...
TestResources
https://www.testresources.net › ... › Standards › ASTM
TestResources
https://www.testresources.net › ... › Standards › ASTM
ASTM D5170 is a standard test method to measure peel strength of hook and loop fastners (often times referred to as Velcro).Read more
Hook and Loop Fastener Strength Test
YouTube · ADMET Testing Systems
9K+ views · 15 years ago
YouTube · ADMET Testing Systems
9K+ views · 15 years ago
This video shows a test where adhesive backed hook and loop fastener is adhered to a pair of compression platens mounted to a universal ...
Velcro® Brand Shear Strength | Non-Permanent Fasteners
Hook and Loop
https://www.hookandloop.com › performance-measures
Hook and Loop
https://www.hookandloop.com › performance-measures
We use 4 performance measures to determine the shear strength of Velcro® Brand hook & loop. Read about the criteria for the non-permanent fasteners here.
Velcro Fatigue Tester | Hook and Loop ...
Unuo Instruments
https://www.unuo-instruments.com › Products
Unuo Instruments
https://www.unuo-instruments.com › Products
Velcro Fatigue Tester is used to test the velcro tape/ hook and loop fastener fatigue resistance ability to repeated closing. Touch and close fastener repeated ...Read more
How does the Hook And Loop Tape Endurance Tester work
gester international co.,ltd
https://www.gester-instruments.com › how-does-the-hoo...
gester international co.,ltd
https://www.gester-instruments.com › how-does-the-hoo...
Hook Loop Fastener Fatigue Tester is applicable for repeatedly open and close motion for touch and close fasteners. Hook and Loop Fatigue Tester Test Principle.Read more
Shear Test and Peel Strength Test of Hook and Loop ...
株式会社イマダ
https://www.forcegauge.net › solution › force › peel_test
株式会社イマダ
https://www.forcegauge.net › solution › force › peel_test
IMADA offers force testing system for shear test and peel strength test of hook and loop fastener complying with the corresponding part of JIS L3416: 2020.
Velcro Fatigue Tester
YouTube · Vivian
2.4K+ views · 9 years ago
YouTube · Vivian
2.4K+ views · 9 years ago
Go to channel Asian Test Equipments · Hook & Loop Tape Shear Strength Tester | Shear Strength Test of Hook & Loop Velcro Tape. Asian Test ...
Velcro Fatigue Tester AF07
aveno technology co., limited
https://www.avenotester.com › velcro-fatigue-tester-af07...
aveno technology co., limited
https://www.avenotester.com › velcro-fatigue-tester-af07...
Velcro Fatigue Tester is designed to achieve Velcro (hook & loop) to repeated stripping and peeling after a certain times.Read more
Velcro Fatigue Tester - Environmental Chambers
envi-chambers.com
https://www.envi-chambers.com › velcro-fatigue-tester
envi-chambers.com
https://www.envi-chambers.com › velcro-fatigue-tester
Feb 1, 2024 — This test measures the ability of the velcro fastening system to withstand repeated opening and closing over an extended period of time.Read more
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