Tensile Testing of Finished Textiles
Tensile testing of cargo netting is an important quality control that can ensure the end product meets internal and external standards for durability and performance. Manufacturers also require the ability to test finished products to determine how various combinations of materials and design impact product performance. These types of tests are typically carried out in a research and development setting, and allow manufacturers to determine which configuration best meets their needs for a variety of applications.
When testing a specimen like netting, it is important to make cuts as far away from the joints as possible to eliminate any weakening of the fiber. Depending on the product design and failure mode of the part, either pneumatic side acting grips or fabric loop grips can be used. Cargo netting is typically very elastic, which requires grips that apply constant clamping pressures or fixtures that will interlock with the specimen.
The challenges of testing to this standard are:
- Specimen gripping
- Instron fabric loop grips are well-suited to gripping atypical textile specimens such as netting while maintaining high throughput
- Instron offers traditional side acting pneumatic grips that offer faces up to 150mm wide, which would be able to properly grip netting