st3sp steel
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2021 ◽  
Vol 316 ◽  
pp. 936-941
Author(s):  
Natalya Ya. Golovina

The work is devoted to the formulation of mathematical models of plastic materials without hardening. A functional is proposed, the requirement of stationarity of which made it possible to formulate the differential equation of stress as a function of deformation. On the linear deformation section, a second-order functional is proposed; on the non-linear deformation section, a fourth-order functional is proposed. A range of boundary value problems is formulated, that ensure the continuity of the function at the boundary of the linear and non-linear sections of the deformation curve. The theoretical strain curve was compared with the samples of experimental points for materials: St3sp steel, steel 35, steel 20HGR, steel 08Kh18N10, titanium alloy VT6, aluminum alloy D16, steel 30KhGSN2A, steel 40Kh2N2MA, and showed a good agreement with the experiment. Thus, a variational model is constructed, that allows one to construct curve deformations of various physically non-linear materials, which will allow one to construct further mathematical models of the resource of such materials.


2017 ◽  
Vol 2017 (4) ◽  
pp. 25-31 ◽  
Author(s):  
V.L. Aleksenko ◽  
◽  
A.A. Sharko ◽  
S.A. Smetankin ◽  
D.M. Stepanchikov ◽  
...  

1991 ◽  
Vol 33 (1) ◽  
pp. 35-38
Author(s):  
L. V. Popova ◽  
A. G. Nasibov

Metallurgist ◽  
1975 ◽  
Vol 19 (11) ◽  
pp. 809-810
Author(s):  
G. Z. Zaslavskii ◽  
D. I. Arslanov ◽  
Yu. E. Freidenzon ◽  
N. I. Smirnov ◽  
N. A. Fomin
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