DEVICE FOR CARRYING OUT A MINIATURE PUNCHING TEST IN CONDITIONS OF SUBMERSION IN A LIQUID SOLUTION

Device for carrying out a miniature punching test, with load alignment and friction minimization, which allows the mechanical characterization of a specimen (25, 35) immersed in a liquid and comprises: - a test device (11, 21, 31, 41, 61) which in turn comprises: the specimen (25, 35) under test between an oppression matrix (27) and a support matrix (28); a punch (26, 66) with hemispherical head; the oppression matrix (27) having an opening configured to serve as guide to the punch (26, 66); the support matrix (28) having an opening configured to allow deformation of the specimen (25, 35); and at least one clamping element; - a stress transmitting system (12, 32, 42, 62) comprising two sections (320, 321, 420, 421) configured to transfer the force generated by the testing machine to each of the two ends of the test device (11, 21, 31, 41, 61); - a container (13, 43, 53, 63, 83) configured to house in its interior a liquid in which to completely immerse the specimen (25, 35), comprising two openings (60) in two of its opposite sides configured for, during the test, place the test device assembly (11, 21, 31, 41, 61) and stress transmitting system (12, 32, 42, 62) along the axis between the two openings (60); - a support (14, 74) configured to support the test device (11, 21, 31, 41, 61), the stress transmitter system (12, 32, 42, 62) and the container (13, 43, 53), 63, 83). (Machine-translation by Google Translate, not legally binding)