Identification of failure behaviors of underground structures under dynamic loading using machine learning by Chun Zhu, Yingze Xu, Manchao He, Yujing Jiang, Murat Karakus, Lihua Hu, Yalong Jiang, Fuqiang Ren

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Numerical analysis of reinforced concrete beams pre-cracked reinforced by composite materials by Fatima Benaoum, Foudil Khelil, Ali Benhamena

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Effect of Negative Temperatures on the Strength and Deformability of a Reinforced Concrete Element by Andrey D. Istomin, Victoria A. Petrova

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Small Surface Fatigue Crack Behaviors of Cr-Mo Steel AISI4137 by Seung-Hoon Nahm, Sang-Koo Jeon, Dong-Kyun Kim, Min-Soo Suh, Chang-Min Suh

Subjects: “…multiple small surface fatigue cracks…”
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EARLY DETECTION OF GEAR TOOTH CRACKING FAULT BASED ON RESONANCE BAND AMPLITUDE-PHASE DEMODULATION TECHNIQUE by SUN ShouBao, GUO Yu, WU Xing

Subjects: “…Early gear tooth cracking fault…”
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RESEARCH OF FINITE ELEMENT SIMULATION AND TEST ABOUT PV MODULE WITH DIFFERENT FIXED SPACING by WANG Xiaofeng, YANG Fan, YOU Ying

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Tailing and axisymmetric static laser beam shapes to steer microstructure and improve mechanical properties of autogenously laser welded AA6082 alloy by Venkat Vivek Pamarthi, Tianzhu Sun, Abhishek Das, Qamar Hayat, Alexander Griffiths, Lewis Johnson, Pasquale Franciosa

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A numerical method for the solution of plane crack problems in finite media by P. S. Theocaris, N. Ioakimidis

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Clinical observation of external application of compound Baiyu powder in treating cracked nipples during lactation period and related nursing management (复方白玉散外敷治疗哺乳期乳头皲裂临床疗效观察及护理)... by CHEN Shuangshuang (陈双双), WANG Yuan (王媛), YOU Tingli (游婷李), CHEN Juan (陈娟)

Subjects: “…cracked nipples…”
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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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