Application of laser"shock"wave treatment to increase crack resistance of materials

2020 ◽  
pp. 42-48
Author(s):  
G.Zh. Sakhvadze ◽  
G.G. Sahvadze ◽  
Kavtaradze R.Z.
Keyword(s):  
Shock Wave ◽  
Finite Element ◽  
Crack Resistance ◽  
Element Model ◽  
Laser Shock ◽  
Wave Treatment ◽  
Maximum Reduction ◽  
Shock Wave Treatment ◽  
Laser Shock Wave ◽  
Keywords Laser

A finite element model is developed for predicting the appearance of new and the propagation of existing cracks during laser-shock-wave treatment (LSWT) of materials with linear and V-shaped cracks. The optimal modes of LSWT were determined for the maximum reduction in the rate of crack propagation. Keywords laser-shock-wave treatment, finite element method, residual stresses, stress intensity factor, crack growth rate, crack resistance. [email protected]

Modification of structure and luminescence of ZnO nanopowder by the laser shock-wave treatment

2013 ◽  
Vol 10 (10) ◽  
pp. 1288-1291 ◽  
Author(s):  
V. Zhyrovetsky ◽  
B. Kovalyuk ◽  
V. Mocharskyi ◽  
Yu. Nikiforov ◽  
V. Onisimchuk ◽  
...  
Keyword(s):  
Shock Wave ◽  
Laser Shock ◽  
Wave Treatment ◽  
Shock Wave Treatment ◽  
Zno Nanopowder ◽  
Laser Shock Wave

Fractographic Analysis of Surface and Failure Mechanisms of Nanotitanium after Laser Shock-Wave Treatment

2013 ◽  
Vol 592-593 ◽  
pp. 346-349 ◽  
Author(s):  
Pavlo Maruschak ◽  
Abdellah Menou ◽  
Mykola Czausow ◽  
Vitaly Mocharskyi
Keyword(s):  
Shock Wave ◽  
Surface Morphology ◽  
Failure Mechanisms ◽  
Separation Scheme ◽  
Laser Shock ◽  
Wave Treatment ◽  
Shock Wave Treatment ◽  
Treatment Changes ◽  
Mechanism Of Failure ◽  
Laser Shock Wave

In this work, the effect of the laser shock-wave treatment on the surface morphology and regularities in failure of nanotitanium is investigated. Based on the data of fractodiagnostics it is established that the shock-wave treatment changes the mechanism of failure from the brittle chipping to the mixed ductile-brittle one by the shear + separation scheme.

Influence of laser shock-wave treatment on the impact toughness of heat-resistant steels

2010 ◽  
Vol 46 (3) ◽  
pp. 425-429 ◽  
Author(s):  
P. V. Yasnii ◽  
P. O. Marushchak ◽  
Yu. M. Nikiforov ◽  
V. B. Hlad’o ◽  
B. P. Kovalyuk
Keyword(s):  
Shock Wave ◽  
Impact Toughness ◽  
Laser Shock ◽  
Wave Treatment ◽  
Heat Resistant ◽  
Shock Wave Treatment ◽  
Heat Resistant Steels ◽  
The Impact ◽  
Laser Shock Wave

Application of the method of dimensional analysis in laser-shock-wave processing of titanium alloys with shape memory

2021 ◽  
pp. 66-72
Author(s):  
Keyword(s):  
Shock Wave ◽  
Finite Element ◽  
Plastic Zone ◽  
Shape Memory ◽  
Dimensional Analysis ◽  
Peak Pressure ◽  
Laser Shock ◽  
Zone Depth ◽  
Peak Pressures ◽  
Laser Shock Wave

The processes of laser-shock-wave processing of NiTi alloys with shape memory effect are investigated by the methods of dimensional analysis and finite element modeling. The dependences of the depth of the plastic zone on the peak pressure in the shock wave and the duration of the laser pulse are obtained at different peak pressures. Keywords: shape memory alloys, laser-shock-wave processing, dimensional analysis, residual stresses, plastic zone depth. [email protected]

Sign in / Sign up

Export Citation Format

Share Document