Evaluation of the vibration state and determination of the stress-strain state of the trash-rack structure of the hydroelectric power plants by A. S. Antonov, N. P. Karablin, K. Ju. Baud, I. V. Baklykov

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State of the practice on energy-based liquefaction evaluation and research significance by Takaji Kokusho

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Sünek Betonarme Perde Duvarların Şekil değiştirme Esaslı Hasar Sınırları by Saeid Foroughi, Bahadır Yüksel

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Digital modelling of failure of road barrier elements under impact of vehicle collision by I. V. Demiyanushko, O. V. Titov, P. S. Mikheev, I. A. Karpov

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Microstructural insights into the influence of stress amplitudes on the crack nucleation mechanism of Ti–2Al-2.5Zr alloy using quasi in-situ tests by Shengkun Wang, Mengqi Li, Zuoliang Ning, Gang Chen, Zheng Liu, Jun Wu, Wenchun Jiang

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Phenomenological understanding of the contribution of bulk and grain boundary precipitates on strengthening in prolonged-aged Al-Zn-Mg-Cu aluminium alloys by Cheng-Ling Tai, Yu-Ning Chiu, Chu-Jen Chen, Shih-Kang Lin, Hsin-Chih Lin, R. Devesh Kumar Misra, Yo-Lun Yang, Chien-Nan Hsiao, Cheng-Si Tsao, Tsai-Fu Chung

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Studying stress-strain state of gear billet using mathematical models depending on clamping forces in 3 and 6 cam self-centering chucks by A. S. Serkov, V. B. Masyagin, R. L. Artyuh, L. B. Serkova, V. V. Akimov

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Practical Recommendations of Scientific Society for the Study of Human Microbiome and Russian Gastroenterological Association (RGA) for Probiotics in Treatment and Prevention of Ga... by V. T. Ivashkin, I. V. Mayev, D. I. Abdulganieva, S. A. Alekseenko, N. Yu. Ivashkina, N. V. Korochanskaya, S. N. Mammaev, E. A. Poluektova, A. S. Trukhmanov, Yu. P. Uspensky, V. V. Tsukanov, O. S. Shifrin, O. Yu. Zolnikova, K. V. Ivashkin, T. L. Lapina, R. V. Maslennikov, A. I. Ulyanin

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Vulnerabilidad sísmica y capacidad de carga de un puente atirantado basados en confiabilidad estructural Seismic vulnerability and loading capacity of a wire strained bridge based... by Edgar Muñoz, Federico Nunez, Jorge A Rodríguez, Alfonso Ramos, Camilo Otálora

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Application of «delayed wattle reaction» assay in chicken for rapid assessment of anti fowl pox immunity level by S. A. Pokhvalny, V. Yu. Kulakov, A. S. Samsonova

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Practical Recommendations of Scientific Society for the Study of Human Microbiome and the Russian Gastroenterological Association on Use of Probiotics, Prebiotics, Synbiotics and F... by V. T. Ivashkin, I. V. Maev, D. I. Abdulganieva, S. A. Alekseenko, A. V. Gorelov, I. N. Zakharova, O. Yu. Zolnikova, N. Yu. Ivashkina, N. V. Korochanskaya, S. N. Mammayev, E. A. Poluektova, A. S. Trukhmanov, D. V. Usenko, Yu. P. Uspensky, V. V. Tsukanov, O. S. Shifrin, I. V. Berezhnaya, K. V. Ivashkin, T. L. Lapina, R. V. Maslennikov, S. V. Nikolaeva, N. G. Sugyan, A. I. Ulyanin

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COMPARATIVE RESEARCHES OF FRACTURES OF HIGH-STRENGTH CAST IRON IN THE AS-CAST AND DEFORMED STATE by A. I. Pokrovsky, I. N. Khrol

Subjects: “…the results of comparative studies of fracture surfaces of high-strength cast iron in the as-cast state and after hot direct extrusion through an aperture of a conical die are presented. the shape change of graphite inclusions and components of the metal matrix is examined with increasing the reduction ratio from 0 (as-cast state) to 80%. for the fist time, using the electrochemical etching of the metal matrix of the cast iron, it is demonstrated experimentally that at plastic deformation the ductile flow of graphite inclusions occurs without fracturing of the latter. the surface morphology of a deformed graphite inclusion is revealed. it is shown that inside the inclusion the strain is distributed non-uniformly: the peripheral zones are deformed to a larger extent while the central part may retain its original radial structure. the fact that the most part of graphite inclusions on the fracture surface of the deformed cast iron appeared undamaged (very small amount of fractured inclusions was observed) testifies against the common opinion that graphite acts as a crack nucleation site. a hypothesis is put forward that the crack nucleates in the metal matrix, presumably at the pearlite/ferrite interface, and propagates from one graphite inclusion to another rounding but not damaging the latter.…”
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