Rheological tests under mono-loading
Plasticity in forming

Although tensile testing is very useful, because it is easy to perform and interpret, its field of application is limited by the phenomenon of striction on the high-strain side. Moreover, precise measurement of specimen deformation in the small-strain range requires the use of extensometers or strain gauges.

We won't discuss the compression test here; its mechanical analysis is very similar to that of the tensile test. However, while it enables greater deformations to be achieved, since the cross-sectional area on which the force is exerted increases constantly, its implementation requires precautions to minimize the influence of material friction on the tools [8] and [26] .