Mechanical characterization tests representing the intrinsic behavior of the material when subjected to external stresses.
Plastlab laboratories have the option of using two dynamometers based on the test to be performed and the sample to be tested:
Instron dynamometer with 50KN load cell and axial clip static extensometer, with set of fixing clips adjustable according to the thickness of the specimen. It is also possible to perform dynamometric tests in temperature with a range from -100°C to +350°C. Instrument generally used to perform tensile tests on plastic and metal specimens.
Gibitre dynamometer with 1KN and 10KN load cells and with mechanical extensometer with total stroke 900mm; generally used for samples with low tensile strength and high elongations, such as elastomers.
With the dynamometers in its possession, Plastlab is also able to perform a vast range of tests required by characterizations of technical data sheets and by specifications and standards of the most varied sectors, from automotive to aerospace:
Tensile tests: a standardized specimen (bar or dog bone) is pulled with an ever-increasing force based on the response given by each individual material. From this derives a stress curve with respect to the deformation imposed by the traction itself. From here it is possible to obtain multiple information in mechanical terms including tensile strength, final elongation of the specimen and its elastic modulus.
The Plastlab laboratory is accredited according to UNI EN ISO 527-1 and UNI EN ISO 527-2 standards for traction of plastic materials. This test is time-saving as important information on the mechanical behavior of the material can be obtained within a few hours and comparisons between multiple batches can be made. You can perform tensile tests for specimens made from components, injection molded normative specimens, and o-rings.
- Compression tests: unlike traction, it gives information on the force exerted by the component when subjected to a negative deformation and a “crushing” of the sample. From this test it is possible to obtain important mechanical information such as the maximum stress in compression and the deformability of the material.
- Bending tests: Dynamometric test performed on standardized “bar” specimens tested in 3 points, from which information such as flexural stress and strain as well as the flexural modulus can be obtained.
- Adhesion or detachment tests by shear and peeling tests: Dynamometric tests that are performed in compliance with international standards or sector specifications, able to evaluate the detachment or adhesion force between substrates, for bonding or for composite materials:
