| 000 | 04151nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 654014 | ||
| 005 | 20231030041242.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\19529 | ||
| 090 | _a654014 | ||
| 100 | _a20170406a2016 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aNonlinear effect of elastic vortexlike motion on the dynamic stress state of solids _fE. V. Shilko [et al.] |
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| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 26 tit.] | ||
| 330 | _aUsing the particle-based method of movable cellular automata, we analyze the initiation and propagation of intersonic mode II cracks along a weak interface. We show that the stress concentration in front of the crack tip, which is believed to be the mechanism of acceleration of the crack beyond the speed of shear waves, is due to the formation of an elastic vortex. The vortex develops in front of the crack during the short initial period of crack propagation. It expands and moves away from the crack tip and finally detaches from it. Maximum stress concentration in the vortex is achieved at the moment of detachment of the vortex. The crack can accelerate towards the longitudinal wave speed if the magnitude of shear stresses in the elastic vortex reaches the material shear strength before vortex detachment. We have found that for given material parameters, the condition for the unstable accelerated crack propagation depends only on the ratio of the initial crack length to its width (e.g., due to surface roughness). | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 |
_tPhysical Review E _oScientific Journal |
||
| 463 |
_tVol. 93, iss. 5 _v[053005] _d2016 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aнелинейные эффекты | |
| 610 | 1 | _aтвердые тела | |
| 610 | 1 | _aдинамическое состояние | |
| 610 | 1 | _aнапряженное состояние | |
| 610 | 1 | _aнапряженно-деформированные состояния | |
| 610 | 1 | _aдеформации | |
| 701 | 1 |
_aShilko _bE. V. _cphysicist _cengineer of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1973- _gEvgeny Viktorovich _2stltpush _3(RuTPU)RU\TPU\pers\35909 |
|
| 701 | 1 |
_aGrinyaev _bYu. V. _gYury Vasiljevich |
|
| 701 | 1 |
_aPopov _bM. _cphysicist _cassistant at Tomsk Polytechnic University _f1987- _gMikhail _2stltpush _3(RuTPU)RU\TPU\pers\36018 |
|
| 701 | 1 |
_aPopov _bV. L. _cphysicist _cleading researcher of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1959- _gValentin Leonidovich _2stltpush _3(RuTPU)RU\TPU\pers\35915 |
|
| 701 | 1 |
_aPsakhie _bS. G. _cphysicist _chead of laboratory, Advisor to the rector, head of Department, Tomsk Polytechnic University, doctor of physico-mathematical Sciences _f1952- _gSergey Grigorievich _2stltpush _3(RuTPU)RU\TPU\pers\33038 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут физики высоких технологий (ИФВТ) _bКафедра физики высоких технологий в машиностроении (ФВТМ) _h2087 _2stltpush _3(RuTPU)RU\TPU\col\18687 |
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bИнститут физики высоких технологий (ИФВТ) _bКафедра физики высоких технологий в машиностроении (ФВТМ) _bНаучно-образовательная лаборатория "Динамическое моделирование и контроль ответственных конструкций" (НОЛ ДМиК ОК) _h7378 _2stltpush _3(RuTPU)RU\TPU\col\20773 |
| 801 | 2 |
_aRU _b63413507 _c20170406 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.1103/PhysRevE.93.053005 | |
| 942 | _cCF | ||