Principles of the kinetic approach of fracture prediction

Zhurkov, S. N.; Kuksenko, V. S.; Петров, В. А.

doi:10.1016/0167-8442(84)90007-7

Cited by 30 publications

(23 citation statements)

References 1 publication

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“…It is seen that mechanical destruction occurs during the entire drawing process. The breakdown of a chain in a disordered region can lead to a chain reaction and destruction of the whole disordered region [112,113], giving rise to submicrocracks. The latter aggregate into microcracks of larger sizes and when their concentration reaches a critical value, the main crack propagates through the sample and breaks it up.…”

Section: 2mentioning

confidence: 99%

Structural Basis of High‐Strength High‐Modulus Polymers

Marikhin¹,

Myasnikova²

1996

Oriented Polymer Materials

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Section: 2mentioning

confidence: 99%

Structural Basis of High‐Strength High‐Modulus Polymers

Marikhin¹,

Myasnikova²

1996

Oriented Polymer Materials

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“…The authors have been repeatedly recorded spontaneous amplification of the intensity of acoustic emission followed by its spontaneous determination [8][9][10]. The author [8] attempted to explain this phenomenon from the point of view of self-organization in coherent structures by interaction of sound waves with opening cracks.…”

Section: Experiments Datamentioning

confidence: 99%

“…2. A) Formation rate of sound impulses in diabase under a constant uniaxial compressive stress [10]. B) Number of photons pairs registered as a function of delay between the moments of two photons detection.…”

Section: The Formation Of Sw At the Lithospherementioning

confidence: 99%

Geophysical field disturbances and quantum mechanics

Кузнецов

2017

E3S Web Conf.

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Abstract. Quantum processes impact into physics of geophysical field disturbances is discussed here in examples of phenomena such as an earthquake with processes preceding and accompanying it, volcanoes eruptions and diamond exploding pipes. Physics of shock waves generation in ionosphere and atmosphere, mechanism of atmosphere phenomena in supercooled clouds recorded by a stormglass is considered. The report treats of physics of ball and dark lightning, of generating in atmosphere the high-energy particles involved in sprites occurrence, and so on. Geophysical phenomena considered here have no clear and consistent interpretation in the context of classical physics. We attempt to involve the recent achievements of quantum physics namely the quantum entanglement between elementary particles implicated in considered phenomena.

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“…Granite samples shaped as a rectangular prism of the 140x70x70 mm 3 size were subjected to loading with various magnitudes and patterns. During testing, the AE signals were registered by a fast ten-channel devise.…”

Section: Experimental Data and Analysismentioning

confidence: 99%

“…Kinetic approach to the problem of strength of solids (Zhurkov [1]) and extensive experimental data on processes of crack generation and developing (Tamuzh [2], Zhurkov [3]) suggested a model of fracture of heterogeneous materials.…”

Section: Introductionmentioning

confidence: 99%

Response of Fracture Nucleation Site to Weak Mechanical Pulses

Kuksenko¹,

Damaskinskaya²

2007

Earthquakes and Acoustic Emission

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The study is concerned with the influence of weak mechanical pulses on development of the fracture nucleation site. The macroscopic fracture of solids is considered as not an abrupt discrete event, but as a kinetic process. We assume that the fracture development in a heterogeneous material can be described in terms of the two-stage model of fracture. At the first stage, a disperse accumulation of noninteracting cracks occurs.. When the local defect concentration in some area reaches the threshold value, the prerequisite for the accelerated defect formation is set up. This area is referred to as the fracture nucleation site. Further defect accumulation provides conditions for the loss of stability of the fracture nucleation site, as a result, a larger defect is formed. Experimental data obtained for a wide fracture scale (from microcracks to earthquakes) supported the validity of the two-stage model. A study of acoustics emission (AE) due to the cyclical deformation of samples of granite, marble and sandstone was made. It has been found that AE pattern apparently depends on the stress magnitude. At a low stress, during the unloading after the first loading cycle AE becomes negligible and at subsequent cycles increases insignificantly. At a high stress resulting in formation of a fracture nucleation site, the unloading is not followed by a sensible drop in the AE and succeeding cycles may bring about rise of AE intensity. This is in agreement with the fact that at a certain stage of formation the fracture nucleation site develops independently of the stress magnitude.

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Principles of the kinetic approach of fracture prediction

Cited by 30 publications

References 1 publication

Structural Basis of High‐Strength High‐Modulus Polymers

Structural Basis of High‐Strength High‐Modulus Polymers

Geophysical field disturbances and quantum mechanics

Response of Fracture Nucleation Site to Weak Mechanical Pulses

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