News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back Modulus of elasticity and tensile strength of inorganic substances M.E. Kustov V.F. Solinov On the basis of model of a double layer the formula the module of elasticity of all elements of periodic system and some inorganic substances is deduced. Elasticity module are defined under dependence from superficial and volume concentration of atoms in degrees 4/3. Strength of substances is considered and the formula for criterion of durability as relations of real durability to the ideal is deduced. Methodical recommendations about processing of the skilled data about a module of elasticity and strength with software use are made. Key words: modulus of elasticity, the real and the ideal strength. Contacts: Е-mail: gigaset2009@gmail.com Pp. 19-25.