PHYSICS OF FRACTURE LABORATORY

 

Head of Laboratory

Professor Yury I. Meshcheryakov

Honorary Scientist of Russian Federation

Contacts:

Tel. (812) 321-4765, Fax (812) 321-4771,

+7-931-339-8590?? E-mail: ym38@mail.ru

Address:

?Institute for Problems in Mechanical Engineering Russian Academy of Sciences

V.O. Bolshoi 61, 199178, Saint-Petersburg, Russia

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


?????????????????????????????????????

 

Staff of laboratory

 

Atrooshenko S.A. Doctor of Sci, professor

Zhigacheva N.I. Kandidat. tekh. nauk

???? Divakov A.K.

???? Konovalov G.V.

???? Petrov Yu.A.

 

 

Scientific directions and research tasks

 

1.              Shock-wave propagation in condensed matter.

2.              Dynamic deformation and fracture including spall and

???????? penetration.

3.              Shock-induced structural instability, turbulence and

???????? fragmentation of solids.

4.              Shock-induced phase transformations in solids.

5.              Creation of materials with nanostructure.

6.              Dynamic compaction of amorphous powders.

7.??? ??Development of new test techniques.

8.              Modeling of multiscale shock-wave processes in solids.

 

Experimental approaches

- Shock loading under uniaxial strain conditions

- Shock loading under uniaxial stress state

?-Taylor technique

- Penetration tests

 

Equipment and diagnostics

 

?Equipment for shock loading of solid material and diagnostics of shock-wave processes:

 

?). Light gas gun of caliber 30 mm.?

b). Light gas gun of caliber 34 mm

c).Two channel laser interferometers for registration of shock-wave processes

d). Two frequency lasers LGN-302.

e).? Equipment and devices for registration of ?interferometric signals.

?

?Equipment for structural investigations

 

?). Optical microscope ??Neophot-32?.

b). Optical microscope? ?Axio-Observer- Z?.

c). Hardness measurements

d).Micro-hardness measurements.

e). Especial boxes for preparation of specimens

f). Vacuum equipment for ?covering the specimens

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Fig. 1. Shock gun and laser diagnostics for shock-wave investigations

 

Strength-characteristics of shock-loaded materials

registered in real time:

 

Impact velocity? Uimp

 

Time-resolved free surface velocity profiles?? Ufs(t)

 

Particle velocity variation D(t)

 

Defect of particle velocity? ΔU = Uimp - Ufs

 

 

Microstructure investigations

 

Optical, REM and TEM techniques, X-ray analysis?? for studying microstructural processes:

?

Twinning, shear banding, dynamic recrystallization, spallation, crack formation, rotational structures and phase transitions

??????????????????????????????????????????????????

??????????????????????

???????????????????????????????? a)???????????????????????????????????????????????????????? b)???

 

Fig. 2.? ?a) Shock-induced nanostructure 3D formations

?????????? ???b) Impactor and ?targets after penetration and spallation

 

?Materials under investigation

 

1. Armor steels of different composition.

2. Maraging steels of different composition.

3. Titanium alloys VT-6, VT-3-1, VT-14, VT16, VT-20, VT-22, VT23, Ti-6Al-4V.

4. Aluminum alloys: VT-95, D16, AMg-6, D16-???, 1420, 1561, 1565

5. Beryllium.

6. Gray iron of different compositions

7. Nitrogen steels.

8. Pipe steels.

9. Aluminum alloy in nano- and micro- states

10. Quartz glass.

11. Gabro-diabase.

 

 

 

Scientific and practical achievements

 

1.?? Dislocation models for shock wave propagation in solids.

2. Bank of data of spall-strength characteristics for large volume of constructional? materials on the basis of? shock test experiments conducted at Fracture Physics Laboratory.

3. A new experimental interferometric technique for registration of shock-wave processes which allows a? real-time monitoring a dynamic response of shock-loaded materials at? two scale levels simultaneously ? mesoscopical and macroscopical.

?4.? Developed at? the Dynamic Fracture Physics Laboratory? equipment including light??????? gas guns? and? two- channel laser? interferometers are supplied? to? Russian Federal???????? Nuclear? Center ??? VNIIEF (Sarov),? Special Materials? Lmt. (Saint-Petersburg),?????? Technical University of? Wien (Austria).

5.              New technique for measuring a particle velocity dispersion at the mesoscopic scale level in shock-deformed solids based on the? real-time? laser interference technique.?

6.              Experimental and theoretical investigation of energy exchange processes between mesoscopic and macroscopic structural levels in unsteady shock waves.

7.              Criteria for dynamic fracture of shock loaded materials taking into account? the energy exchange between mesoscopic and macroscopic structural levels.

8.              Development of theoretical model for noise-induced structural transition in shock-deformed medium.

9.              Firstly discovered and investigated in details a shock-induced ?phase transition at? titanium alloys from the position of influence on the spall strength of alloys. A coupling of the kinetics of phase transitions and dynamic strength of titanium alloys.

10.          In the frame of international grants INTAS and VOLKWAGEN, a detailed experimental investigations of crack nucleation and propagation in shock loaded constructional materials has been performed.

11.          Experimental studying of? dynamic yielding and strength characteristics of? constructional, armor and maraging steels.

 

 

Research ?Programs and Grants.

1. ?Experimental investigation of phase transitions in titanium alloys under

???? shock loading?, State Research Program, 2003-2005 .

2. ?Experimental investigation of vortical mechanism of elastic-plastic deformation under shock loading?, State Research Program, 2006-2008.

3. ?On influence of structure transitions at the? compression pulse front on the spall strength of materials?

???? Grant of Ministry of Industry and Science? of Russian Federation ? 40.010.11.1195:

4. ? On the Control of Physical Mechanisms of Structure Formation under shock loading?. State Program?19 PRAN 2005-2008?:

?5. ?Investigation of dynamic strength of Granite and Melted Quartz under Shock loading? . Federal Research Program ? Physics and Mechanics of High-Compressed Matter and Inner Structure of Earth and Planets?. 2005-2007.

6.? ?Investigation of structure formation processes under shock loading? RFBR Grant 08-02-00329 .

7. ?Shock-induced structure formation in metals and alloys under shock loading?. RFBR Grant 08-02-00304.

8. ?Determination of dynamic yielding for pipe steels within strain rate range of 10 4 ? 10 6 s-1. ?Research Program ?Magistral?. 2007-2010.

 

International cooperation and contacts

 

?1. Livermore Lawrence National Laboratory, USA.

???? Material Support? Agreement number B-319757.

?2.? Army Research Laboratory? USA. Contract? DAAZ01-96-M-0141.

?3.? Army Research Laboratory? Contract? DAAL01-98-P-0796.

?4.? International Grant INTAS:? Project INTAS 96-2141

?5. International Grant WOLKSVAGEN? Research Project I-74-645

 

 

Basic publications on topic

 

1. ?.?. ?????????. ?????????????? ?????? ???????????? ????????? ??????????? ? ???????? ??????????. // ???????????? .C??. ??????,?? ?????, ????????. 1988. ? 3. C.101-111.

2. Yu.I. Mescheryakov and S.A. Atroshenko. Multiscale rotations in dynamically deformed solids.? // Int. Journal of Solids and Structures.? 1992. Vol. 29, No 22. P. 2761-2778,

3. ?.?. ????????, ?.?. ?????????, ?.?. ????????. ???????????? ? ??????????? ???????? ????? ??-28 ? ???????? ????????????????? ??????????.? // ?????? ???????????? ??????. 1997,T. 68, ? 10. C. 43-49.

4. Yu.I. Mescheryakov E.I. Prokuratova? Kinetic theory of? continuously distributed dislocations. //? International Journal of Solids and Structures . 1995. Vol. 32,? No 12.

5. Yu.I. Mescheryakov, A.K. Divakov. Multiscale kinetics of microstructure and strain-rate dependence of materials. // Dymat Journal. 1994.Vol.1, ? 4. ?. 271-277.

6. T.A. Khantuleva ,Yu.I. Mescheryakov. Nonlocal theory of the high-strain-rate processes in? structured media. //? International Journal of Solids? and Structures, 1999. Vol.36. P.3105- 3129.

8. .?. ?????????, ?.?. ?????????. ?????? ????????? ??????????? ??????????????? ????????? ? ????????? ?????????? ? ??????. //?? ?????????? ??????. 1999, ?. 18,? ? 10.

9. Yu.I. Mescheryakov. Mesoscopic effects and particle velocity distribution in shock? compressed solids. ?Shock Compression of Condenced Matter-1999?. Ed. by M.D.? Furnish, L.C. Chhabildas and R.S. Nixon. AIP- Proceeding 505, Melville, New York,? 1999.? ?. 1065-1070.

10 ?.?. ?????????, ?.?. ????????? . ???????? ? ??????????? ????????????? ???????????? ????????????? ? ????????????? ????????????? ??????. ?????????? ????????????. 1999. ???.2. C. 5- 17.????

11.? Yu.I. Mescheryakov, A.K. Divakov, N.I. Zhigacheva. Shock-induced phase transformation and vortex instabilities in shock-loaded titanium alloy. International Journal of Shock Waves. 2000. Vol.10, No 1. P.43-56.

12. ?.?. ?????????, A.K. ???????, ?.?. ????????, ?.?. ??????. ????????? ????????? ? ??????? ??????????? ? ??????? ?????? ??? ??????? ??????????. // ?????? ???????? ? ??????????????. 1999, ? 5. C. 87-90.

13.? Yu.I. Mescheryakov. Mesoscopic effects and particle velocity distribution in shock? compressed solids. // In: ?Shock Compression of Condenced Matter-1999?. Ed. by M.D.? Furnish, L.C. Chhabildas and R.S. Nixon. AIP- Proceeding 505, Melville, New York,? 1999. P.1065-1070.

14. ?.?. ?????????. ????????????? ????????? ???? ? ??????? ????. // ?????????? ??????. ?2000. ???.19,? ?? 2.? C. 44-50.

15. Yu.I. Mescheryakov, A.K. Divakov, N.I. Zhigacheva. Role of mesostructure effects in dynamic plasticity and strength of ductile steels. // Materials Physics and Mechanics.? 2001. Vol. 3. P. 63-100.

15. Yu.I. Meshcheryakov, A.K. Divakov. Affect of shock-induced phase transformations on dynamic strength of titanium alloys. // International Journal of Impact Engineering. 2001. Vol. 26. P. 497-508.

16. ?.?. ?????????, ?.?.????????. ?????????? ?????? ???????????? ????? ? ????????? ????????????????? ??????????.? // ????. 2001. ?. 42,

? 6. ?. 117-123.

17. Yu.I. Mescheryakov. Macro-meso energy exchange in dynamically deformed steels. // In: ?Shock Compression of Condensed Matter-2001?. Ed. M.D. Furnish, N.N. Thadhani, and Y-Y. Horie. 2002. APS. Proceedings P. 267-270.

18. Yu.I. Mescheryakov. Meso-macro energy exchange in shock deformed compression of solids VI.? // In: ?High-Pressure shock and fractured solids.?? Springer, 2002, P.169-213.

19. ?.?. ????????, ?.?. ?????????. ??????????? ???????? ??????? ???. // ?????? ??????? ? ??????. 2002.??? ?. 38,? ? 3. C. 113-118.

20. Yu.I. Mescheryakov, T.A. Khantuleva, A.K.Divakov. Kinetics of mesostructure? and reloading behavior?? of dynamically compressed solid // Journal de physic.? IV (France). Vol. 110. ?2003.? P. 905-910.

21. Yu.I. Mescheryakov. Effect of shock-induced mesoscopic processes on dynamic strength of solids. // ?Journ. de?? physic (France) 2003. Vol.110. P. 911-916.

22.? Yu.I. Mescheryakov, A.K. Divakov, Yu .A. Petrov, C.F.Cline. On the dynamic plasticity and strength of?? polycrystalline beryllium. // Int. Journ Solids and Structures. 2004. V. 30, pp 17-29.

23.? Yu.I. Mescheryakov, A.K. Divakov. Shock-induced mesoscopic processes and? dynamic strength of materials. // In: ?Shock? Compression of Condensed Matter- 2003?. Ed. by?? M.D. Furnish,?? Y.M Gupta, and J.W. Forbes,?? American Institute of? Physics??? Melville, New York,? 2004.? P.587-591.

24. A.K. Divakov, T.A. Khantuleva, Yu.I. Mescheryakov. Kinetics of? mesostructure and reloading behavior of???? dynamically compressed? solids. // In: ?Shock Compression of Condensed Matter- 2003?. Ed. by M.D. Furnish, Y.M Gupta, and J.W. Forbes, American Institute? of? Physics.? Melville, New York, 2004.? P. 587-591.

25. Yu.I. Mescheryakov, N.I. Zhigacheva, A.K. Divakov, Yu. A. Petrov, C.F. Cline. Comparative analysis of? uniaxial strain shock tests of??? maraging steels. // High Pressure Research . 2004. Vol. 24.? P. 263-270.

26. Yu.I. Mescheryakov, A.K. Divakov, N.I. Zhigacheva. Shock-induced structural transitions and dynamic?? strength of solids. // ?Int. Journ Solids and Structures. 2004. V. 41. P. 2349-2362.

27. ?.?. ?????????. ???????????? ?????? ???????? ?????. // ??????????? ??????. ?2005. ???. 24. ? 11.? C. 26-35.

28.? ?.?. ?????????. ???????????? ????????? ? ???????????? ??????????-???????????? ??????????.? // ?????????? ????????????. 2005. ???. 8.? ? 6, C. 5-21.

29. ?.?. ?????????. ?? ???????????? ? ???????????????? ??????? ???????????? ? ??????????????? ??????????? ??????. // ???????? ???, ????? ??????????.? 2006. ?. 70,? ? 9,? ?.1328-1330.

30. ?.?. ?????????, ?.?. ????????, ?.?. ???????, ?.?. ?????????, ?.?. ????????. ?????????????? ? ????????????? ?????????? ? ??????-??????????? ????. // ??????????? ??????, 2007. ???.26.? ? 12. ?.57-63.

31. ?.?. ?????????, ?.?. ???????, ?.?. ????????, ?.?. ???????. ??????? ??????? ????? ?? ???????????????? ?????? ???????? ?? ??????? ??????????. // ?????????? ???????? ? ??????????? ??????. 2007. ???.48, ? 6. ?.135-146.

32. ?.?. ?????????, ?.?. ????????, ?.?. ???????, ?.?. ?????????, ?.?. ????????. ????????????? ?????????? ? ??????-????????????? ????.// ?????????? ????????????. 2007. ???.10. ? 5. ?.63-69.

33. Yu.I. Mescheryakov, A.K. Divakov, N.I. Zhigacheva I.P. Makarevich, ?.?. ????????. Dynamic structures in shock loaded copper. // Physical Review 2008. Vol. 78, No 1. P. 064301-064316.

34. ?.?. ???????, ?.?. ?????????, ?.?. ????????, ?.?. ????????, W.A. Gooch. ????????? ????????? ????????? ???????. // ?????????? ????????????. ?2009. ???. 12. ? 6, ?. 41-52.

35.? ?.?. ???????, ?.?. ????????, ?.?. ?????????, ?.?. ????????, ?.?. ????????. ???????? ?????? ??????-????????????? ??????? ??? ??????? ??????????. // ?????? ? ???????? ??????????. 2009. ???. 8,? ? 1. ?.8-31.

36. ?.?. ????????, ?.?. ?????????, ?.?. ????????. ?????????????? ?????????????? ?????????????? ?????????? ????????????? ??????? ??? ???????????? ?????????? ? ?? ??????? ? ????????????? ??????????? ??????????. 2010. ???. ??? 80, ???. 1. ?. 79-84.
37. ?.?. ?????????, ?.?. ????????, ?.?. ???????, ?.?. ?????????, ?.?. ????????. ???????? ???????? ? ??????????-???????????? ????????? ??? ??????-???????? ??????????.?? ????. 2010, ??? 51,? ???.5, ?. 132-146.

38. ?.?. ????????, ?.?. ????????, ?.?. ?????????. ??????? ??????????? ?????????????? ????????? ?? ?????????? ???????????? ????? ? ?????????? ?????????. ???. 2010, ???.80, ???.10, ? 136-141.

39. ?.?. ?????????, ?.?. ???????, ?.?. ????????, ?.?. ?????????, ?.?. ?????????, ?.?.???????. ????????? ?????-????? ???????????? ? ???????????? ????????? ??????? ???. //???? ?????? ? ???. 2010, ???.36, ? 31, ?.54-56.

40. ?.?. ?????????. ???? ????-????? ??????????? ? ??????????????? ???????????????? ???????????? ????. // ?????????? ????????????. 2010. ???.13, ? 3. ?. 15-20.

41. ?.?. ?????????, ?.?. ???????, ?.?. ?????????, ?.?. ???????. ?.?. ??????? ?????????? ?????????????? ?? ???????????? ???????????????? ???????? ? ?????????? ??????. ?????? ? ???. 2010.

42. ?.?. ?????????, ?.?. ????????. ????????????? ????? ??? ???????????????? ????????????? ?????????? ????????? ? ???????????? ?????. ?????? ??????? ? ??????. 2010,??? 46, ? 6,???? ?. 125-129.

43. ?.?. ?????????, A.K. ???????, ?.?. ????????, ?.?. ????????. ????????? ?????? ? ?????????????? ????????????? ??????????????. ?????? ? ???????? ??????????. ??? 11, ? 1, ??. 23-59 (2011).

44. ?Meshcheryakov Yu.I, A.K. Divakov, N.I. Zhigacheva, B.K. Barakhtin. Regimes of interscale momentum exchange in shock deformed solids. Intern. Journ of Impact Engineering. 2013. V.57. Pp. 99-107.

45.          ?Yury Meshcheryakov , Alexandre Divakov, Natali Zhigacheva, Boris Barakhtin. (2014). Multiscale Deformation and Dynamic Recrystallization in Shock Deformed Aluminum Alloy. - Materials Science Forum Vol. 794-796 pp. 815-820 ?? Trans Tech Publications, Switzerland. DOI 10.4028/www.scientific.net/MSF794-796,815.

46.          ??.?. ?????????, ?.?. ???????, ?.?. ????????, ?.?. ????????? ??.?. ????????, ?.?. ???????, ?.?. ??????. (2014).? ???????????? ????????? ??????????????? ?????. ? ?????? ? ???????? ??????????, ??? 21, ? 2, ?. 99-111.

47.          ?.?. ????????, ?.?. ?????????, ?.?. ??????, ?.?. ???????. (2014). ??????????????? ?????? ??????????????? ???????????? ??????-???????????? ????.- ??????? ???????? ????. ??? 458, ? 2, C. 1-4.? DOI: 10.7868/S0869565214260107

48.?.?. ?????????, ?.?. ?????????. (2015). ????????????? ???????? ? ???????????????? ??????. ????? 2. ??????????? ??????????????, ?????????????? ??????? ???????????.?? ?????????? ????????????.- ?.18,- ? 1,- ?. 14-22.

49.Yu.I. Meshcheryakov, T.A. Khantuleva. (2015). Nonlocal mechanics of nonequilibrium shock-wave processes. Material Physics and Mechanics.- No 2. - ?.136-156.

50.Yu. I. Meshcheryakov , N.I. Zhigacheva, A. K.? Divakov,? G.V. Konovalov, B.K. Barakhtin, S.V. Rasorenov, ?O.V. Vyvenko, A.S. Bondarenko, I.V. Khomkaya. (2015).? Shock-induced structures in copper. - Material Physics and Mechanics. ? Vol. 24. ? P. 347-358.

51.          D.A. Indeitzev, Yu.I. Meshcheryakov, A.YU. Kuchmin, D.A. Vaviliv. (2015). Multi-scale modelof steady wave shock in medium with relaxation. Acta Mechanica.- Vol. 226 Issue 3, pp. 917-930. DOI: 10.1007/S00707-014-1231-0

52.          ??.?. ????????., ?.?. ?????????, ?.?. ????????., ?.?. ????????.? ????????? ?????????? ? ?????????? ? ??????????? ????????? ????????????????????? ???? ? ???????? ??????-????????? ??????????. (2014). ?????????? ???????? ? ??????????? ??????. ?. 55. ? 5 (327). ?. 195-203., DOI: 10.1134/S0021894414050198

53.          ?Yu.I. Meshcheryakov, A.K. Divakov,? H.I.? Zhigacheva., G.V. Konovalov,? B.K. Barakhtin G.Yu. Kalinin., S.Yu.? Mushnikova, O.V. Fomina.? Shock-wave behavior of structural nitrogen-bearing steel after heat treatment under various conditions. (2014), ?Russian Metallurgy. Pleiades Publishing, Ltd. Vol. 2. No 10. P.826-831. DOI:0.1134/S0036029514100085.10.

54.          Meshcheryakov Yu.I , Khantuleva T.A. Nonequilibrium processes incondenced media. Part 1. Experimental studies. In light of nonlocal tranport theory. (2015). Physical Mesomechanics. Pleiades Publishing, Ltd. Vol.: 18. No 3.? P.? 228-243. DOI:10.1134/S1029959915030078.

55.          ?.?. ?????????, ?.?. ?????????. ? ?????????????? ????????????? ??????? ?? ?????????? ??? ???????????????? ?????????????? ???????? ????. // ?????????? ????????????. ?2016 ?.19. ? 4. ??.5-13.

56.          Alexandre Divakov, Yurii Meshcheryakov, N.M. Silnikov. Shock-induced structural instability and dynamic strength of metals // Proceedings of 21-st European Conference of Fracture, ECF21, 20-24 June 2016, Catania, Italy, ?pp. 460-467.

57.          Meshcheryakov Yu.I. Particle velocity non-uniformity and steady-wave propagation? // Intern. J. of Shock Waves, Detonation and Explosives. 2016. V. 26. No 2 DOI 10.197/s00193-016-0659-7.

58.          Yurii Meshcheryakov, Alexandre Divakov, Natali Zhigacheva, Grigorii Konovalov. // Shock-induced structural instability and dynamic strength of brittle materials. // Proceedings of 21-st European Conference of Fracture, ECF21, 20-24 June 2016, Catania, Italy,? pp. 468-472.