Biaxial testing machines

Zwick offers a variety of solutions for biaxial materials testing. Materials testing machines with torsion drive enable fast, precise biaxial testing (tensile or compression combined with torsion) of materials or components up to 10,000 Nm. As well as tests on artificial ball-and-socket joints and bone-replacement material, torsion tests are also performed on items such as clutch discs, steering shafts and camshafts.

Zwick's product range also includes biaxial testing machine for cruciform tests from 1 kN to 250 kN. These have four separate drives that are either controlled in master-slave mode or independently from each other via the testControl measurement and control electronics. Biaxial testing machines are especially suitable for component testing, research purposes, and individual complex test sequences. 

Static torsion testing

Torsion drives from 2 Nm to 2,000 Nm are available for torsion tests on materials or components. Zwick supplies a variety of testing machines to cater for different requirements, including varied installation options. These torsion drives were developed as a modular system, making them suitable for retrofitting also. A Master test program for multiple test axes plus a graphical sequence editor for four test axes are available in the testXpert II testing software. For pure torsion tests there are the TorsionLine testing machines with horizontal testing axis and optional weight loading unit.

Biaxial tensile test (cruciform test)

A unique feature of materials testing is the biaxial tensile test, or two-axis tensile test, which is used to determine the deformation properties of the material. It is primarily employed in research and development, as it allows defined stress values to be set and investigated at the intersection point of the specimen.

Both standardized and customized biaxial testing machines are available from Zwick