What are the two types of tensile testing machines?

 

Universal material testing machine is a general testing equipment used to test the performance of various materials (metal, plastic, rubber, paper, etc.) under tension. The universal testing machine consists of a pair of grips, one of which is fixed on the test platform and the other is fixed on the moving beam. The test sample is clamped between two grips and a tensile force is applied by moving a beam. Universal material testing machines can usually measure many performance indicators, such as tensile strength, elastic modulus, yield point, elongation at break, etc.

 

The fiber tensile testing machine is used to test the performance of fiber materials such as fibers, threads, ropes, etc. under tension. The fiber tensile testing machine consists of a pair of grips, one of which is fixed on the test platform and the other is fixed on the moving beam. The test sample is clamped between two grips and a tensile force is applied by moving a beam. Unlike universal testing machines, fiber tensile testing machines usually use torsion grips to avoid damage to the test sample during the clamping process. Fiber tensile testing machines can usually measure many performance indicators, such as breaking strength, elongation at break, elastic modulus, etc.

 

In conclusion, it is very important to choose a suitable tensile testing machine according to the purpose and application of the test. Universal material testing machines and fiber tensile testing machines have their own advantages and disadvantages, and they need to be selected according to the requirements of test materials and performance indicators.