Currently, biological tissues such as pig vocal cords as well as electrospun fiber-reinforced heart valve scaffolds are subjected to biaxial testing. The goal of these tests is to mimic the physiological loading state of cultivated implants in human bodies in order to be able to compare the behavior of the tested materials with native tissues and determine anisotropic properties.
The maximum test load of the testing machine is 500 N per load cell, with two load cells each in the X and in the Y direction. The integrated, height-adjustable liquid basin enables testing in tempered liquid mediums. Strain measurement is performed using a non-contact extensometer in accuracy class 1. Various specimens are held securely and slip-free by flexible hooks or clamps with pin-plates or pyramid jaws.