Specimen for the Determination of Fatigue Thresholds Under Cyclic Transverse Shear

Autor:	T. M. Lenkovskyi, O. P. Datsyshyn, A.Yu. Glazov
Rok vydání:	2020
Předmět:	Materials science Structural material 020209 energy Mechanical Engineering Diagram 02 engineering and technology Singular integral Edge (geometry) Condensed Matter Physics Square (algebra) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Solid mechanics 0202 electrical engineering electronic engineering information engineering Fracture (geology) General Materials Science Composite material Stress intensity factor
Zdroj:	Materials Science. 55:492-501
ISSN:	1573-885X 1068-820X
DOI:	10.1007/s11003-020-00330-3
Popis:	We develop a basic element of the procedure of construction of the near-threshold part of the diagram of fatigue fracture for metallic materials under the conditions of transverse shear. It is proposed to use a square sample with edge cut and a force scheme of its cyclic loading. We determine the strain-stress state of a square plate with edge crack (regarded as a prototype of the proposed specimen) under the conditions of transverse shear by two independent methods (finite-element method and the method of singular integral equations). The stress intensity factor KII is determined for a broad interval of relative crack lengths with regard for the smooth contact of the crack faces and the presence of friction between the faces.
Databáze:	OpenAIRE
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