MODELING ELASTIC STRESS FIELDS ARISING IN THE DURALUMIN TARGET ON IMPACT OF MACROPARTICLES ACCELERATED BY A COMBINED GAS DISCHARGE FACILITY

2015 ◽  
Vol 19 (3-4) ◽  
pp. 249-255
Author(s):  
Valiantsin V. Astashynski ◽  
M. I. Bogach ◽  
A. V. Buracheuski
Keyword(s):  
Elastic Stress ◽  
Gas Discharge ◽  
Stress Fields

ION BEAM (Cu–Pb–Sn) IMPLANTATION OF SURFACE LAYER OF 30ChGSN2A

2018 ◽  
Vol 25 (07) ◽  
pp. 1950011
Author(s):  
YU. M. BOROVIN ◽  
E. V. LUKYANENKO ◽  
V. V. OVCHINNIKOV ◽  
T. YU. SKAKOVA ◽  
N. V. UCHEVATKINA ◽  
...  
Keyword(s):  
Surface Layer ◽  
Elastic Stress ◽  
Ion Beam ◽  
Stress Fields ◽  
Internal Stresses ◽  
Lead Alloy ◽  
Mechanism Of Formation ◽  
Rotational Deformation ◽  
Multi Level ◽  
Copper Lead

Electron microscopy studies were conducted for the fine structure of ion-doped layer on 30ChGSN2A steel obtained by ion implantation of monotectic tin-doped copper–lead alloy Cu64Pb36[Formula: see text]Sn. Formation of a multi-level hierarchical structure was detected. The features of formation of each layer were analyzed, and it was found that the main mechanism of formation of these structures is diffusion and relaxation resulting in the occurrence of internal stresses both in the surface layer and in the sheet of 30ChGSN2A steel. Relaxation of elastic stress fields results in translational–rotational deformation forming various vortex structures.

Effect of elastic stress fields generated by ion-implanted helium layers on changes in carbon steel microstructure

1999 ◽  
Vol 42 (6) ◽  
pp. 523-527
Author(s):  
G. Z. Ganeev ◽  
S. B. Kislitsyn ◽  
T. E. Turkebaev ◽  
L. G. Turubarova
Keyword(s):  
Carbon Steel ◽  
Elastic Stress ◽  
Stress Fields ◽  
Steel Microstructure ◽  
Ion Implanted

scholarly journals Interpretation of Plasticity Effects Using the CJP Crack Tip Field Model

2016 ◽  
Vol 258 ◽  
pp. 117-124 ◽  
Author(s):  
M. Neil James ◽  
Colin J. Christopher ◽  
Francisco Alberto Díaz Garrido ◽  
Jose M. Vasco-Olmo ◽  
Toshifumi Kakiuchi ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Stress Intensity ◽  
Strain Gauge ◽  
Field Model ◽  
Elastic Stress ◽  
Crack Tip ◽  
Stress Fields ◽  
Intensity Factors ◽  
Crack Tip Field ◽  
Elastic Stresses

This paper will outline the development of a model of crack tip fields that represents an innovation in incorporate the influences on crack tip displacement and stress fields of the zone of local plasticity that envelops a growing fatigue crack. The model uses assumed distributions of elastic stresses induced at the elastic-plastic boundary via wake contact and compatibility requirements, and defines a set of modified elastic stress intensity factors to characterise the crack stress or displacement tip field. In particular, recent work will be presented that compares the interpretation of plasticity-induced shielding obtained from trends observed in KR and KF with values of so-called ‘crack closure’ obtained via traditional strain gauge determination.

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