The paper presents the design of a stand for determining mechanical strength, mechanical stresses and modulus of elasticity. The stand has been tested using circular membranes of silicon oxide and silicon nitride of various diameters. The magnitude of the biaxial module has been obtained analytically and calculated basing on experimental data. There is a good correlation between the results obtained. An elastic deformation has been shown at an excess pressure of not more than 0.6atm. The critical pressure for each diameter has been determined. It has been shown that circular membranes of different diameters withstand the same value of the external force.


Разработка: студия Green Art