The test frame can be equipped with two test areas. For example, the upper test area accommodates tensile tests on dumbbell specimens and the lower test area accommodates compression tests to determine ring stiffness or ring flexibility. A load frame with two test areas is user-friendly because there is no need to change test fixtures.
The testXpert II Standard Test Programs control the test sequence making testing is easy and reliable. All important test results are already preprogrammed and automatically calculated.
Many types of pipes require measurement of deformation for the inner diameter. Zwick offers a special extensometer for this, as well as a manual displacement transducer developed specifically by Zwick for pipe testing.
Determination of ring flexibility
ProLine materials testing machine, components testing, determination of ring flexibility of pipes to DIN EN ISO 13968