Testing of natural and artificial elastic tissues

The biaxial testing machine was developed for mechanical testing of natural and artificial elastic tissues. The integrated, height-adjustable liquid basin enables uniaxial and biaxial testing in tempered liquid mediums.

• Four linear drives, controlled independently of each other in terms of position, force, or strain
• Measurement of extension using a laserXtens and videoXtens extensometer
• Liquid basin for optimal temperature conditioning of the medium
• Various specimen grips for safe specimen gripping

Advantages & Features

Optical strain measurement

• Use of the non-contact laserXtens with videoXtens add-on allows for biaxial strain measurement with just one extensometer
• The laserXtens does not require specimen marking
• Specimen marking is required with the videoXtens add-on, if the specimen does have a naturally occurring pattern with sufficient contrast
• Optional strain control including mid-point control via four independent linear drives (dependent on the material), only in combination with 2D dot matrix of the videoXtens add-on

Linear drive

The biaxial testing machine incorporates four high-resolution linear drives, which can be controlled completely independent of each other via position, force or strain.

Specimen grips

The following load application options are available:

• Free-moving hooks attached to thin yarn and linked for flexibility
• Parallel-closing clamps with pin-plates
• Parallel-closing clamps with pyramid jaws

Liquid basin

• The liquid basin can be lowered for easy specimen gripping
• The liquid basin can be easily raised for testing
• Use of transparent plastic breakwater for improved signal quality in air, thereby ensuring that the transition from gaseous to liquid medium is free from optical interference