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Diamante pull-off test
![Diamante pull-off test with UltraTest](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2022-02/diamante-pull-off-ultratest-with-close-up.jpg.webp?itok=7bMhJmrA)
![Diamante pull-off test equipment](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2022-02/multitest-2-5-dv-afg-diamante-accessories.jpg.webp?itok=vfp7IxCR)
Solution
- Motorised tensile test stand and gauge
- clamping fixture and slotted gripping accessory
Benefits
- Approved product quality testing to customer specification
- Simple and reliable test procedure
- Test To Failure (TTF) condition detected and captured automatically
- Confidence in meeting safety standards
Requirement
The customer was a supplier to major UK clothing retailer Marks & Spencer, who stipulate that all fasteners and attachments must be tested to failure.
The strength of the joint/diamante was critical to ensure that it met the design tolerance and safety levels. A motorised unit with a test speed was defined at 200 mm/min as the system needed to be simple to use in a production environment and provide consistent results.
Solution
The cloth material was clamped in a 'Double Action Vice Grip' with 50 mm wide faces coated with non-slip rubber to enhance the gripping strength. The diamante attachment was loaded from the front into a slotted claw fixture, ready for testing.
For ease of loading the diamante into the fixture and also to help maintain a straight-pull, the 'Diamante Fixture' was connected to the force gauge via a flexible chain link. The peak tension load to remove/break the diamante was recorded at the fast data-acquisition speed of 1200 Hz.
Test equipment
- 1000 N UltraTest Motorised Test Stand
- 500 N AFG
- Diamante Fixture
- Double Action Vice Grip
![Diamante pull-off test with UltraTest](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2022-02/diamante-pull-off-ultratest-with-close-up.jpg.webp?itok=7bMhJmrA)
![Diamante pull-off test equipment](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2022-02/multitest-2-5-dv-afg-diamante-accessories.jpg.webp?itok=vfp7IxCR)