MOLECULAR-STATISTICAL DESCRIPTION OF NONUNIFORMLY DEFORMED SPECIMENS.
3. CALCULATION OF THE DIAGRAM OF EXTENSION AND COMPRESSION OF A 
ONE-DIMENSIONAL STATISTICAL MODEL OF DEFORMATION OF A MOLECULAR CRYSTAL

A. V. Zharkevich

UDC 536.758+539.311

A system of nonlinear equations whose solution determines 
the dependence of the equilibrium concentration of vacancies on the 
molecular length of a chain with occupied and unoccupied sites has 
been obtained using the variational method. Numerical solution of 
this system made it possible to calculate the free energy, the thermodynamic 
Gibbs potential, and the deforming force as functions of the macroscopic 
deformation of the linear chain. As a result, a theoretical diagram 
of extension and compression for a one-dimensional model has been 
constructed.

Belarusian State Technological University, 13a Sverdlov 
Str., Minsk, 220050, Belarus. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 77, No. 4, pp. 144-149, July-August, 2004. Original 
article submitted December 2, 2003.