Automated traction-torsion bench
Description
This is an automated tensile-torsional mechanical testing system for studying the mechanical properties of individual metallic or polymeric strands manufactured by various types of 3D printing processes. These beads have a cylindrical geometry with a circular to elliptical or flattened cross-section, with a major axis whose dimensions are of the order of 0.4 mm to 2 mm, and a minor axis whose dimensions are of the order of 0.2 mm to 1 mm. The characterization bench developed in this way should enable:
- the referencing of each sample (cord) tested;
- automatic loading and clamping in the mechanical testing machine;
- coupled, automated launch of the mechanical test (from the mechanical testing machine) and the surface deformation field measurement (from the surface field measurement system);
- detection of the end of the test, corresponding to sample failure or breakage;
- recording of force, time and displacement data from the mechanical testing machine, as well as surface field measurement data;
- recovery of tested samples at the end of the mechanical test;
- automatic evaluation of the data acquired during the test.
To achieve this, the characterization bench will consist of a mechanical testing machine equipped with an image stereocorrelation system, and a robot equipped with a pneumatic gripping hand to transfer the samples (without deforming the cords) to the jaws of the tensile-torsion cell.
Location
LaMCoS, Site de Plasturgie of INSA Lyon – Oyonnax
Contacts
Platform managers: Pierre DUMONT, Florian MARTOIA
Coordinator of associated targeted project: Laurent ORGEAS
Technical characteristics
Note: these technical specifications are taken from the tender documents, pending responses to the current call for tenders.
- Storage cassette with capacity for 50 samples (cords)
- Tensile and torsion modules adaptable to Shimadzu AGS testing machine – X 10kN
- Speed range: 0.1 to 500 mm.s-1
- Force range: 1 to 500 N
- High magnification optics adapted to the digital cameras of the VIC 3D digital image stereocorrelation system
- Tests carried out at room temperature, with the option of varying relative humidity (10% to 85% RH)
Associated targeted project
