This book synthesizes the results of author's researches and results from known publications in the field of surface layers fracture of cyclical contacting bodies (machine parts). The calculation models and calculating procedures of stress-strain states of cyclically contacting solids with cracks, have been proposed. On this basis, the cracks paths propagation which form nearsurface damages have been constracted, taking into consideration the tribojoint operating parameters and crack growth resistance characteristics of materials by transverse shear and normal opening. The computer methodology to study fracture processes in tribojoint elements contact area and estimation of their residual lifetime by the criteria of typical contact fatigue damages formation (spalling, pitting, cracking, "dark spots", cavities etc.) has been developed. Recommendations for optimizing operating parameters of joints (contact stresses magnitude, friction/lubrication conditions, materials crack resistance etc) for elements of rolling pairs (wheel-rail systems, backup roll - working roll of rolling mills etc.) and some fretting pairs are formulated.

Title: Dr. Sc. (Eng.); Ph. Dr. (Phys., Math.); Leading Research Scientist

Address of the Institution:

Karpenko Physico-Mechanical Institute of National Academy of Science of Ukraine,
5, Naukova St., 79060, Lviv, Ukraine
Tel.: 38(032)2540065,   Fax: 38(032)2649427

19471957  Secondary School

19531957  Music School

19571962  Mathematics and Mechanics Faculty, Ivan Franko State University, Lviv, Ukraine

19651968  Post graduate courses at Karpenko Physico-Mechanical Institute of National
          Academy of Science of Ukraine

1974  Candidate of Sciences (Ph. Dr. (Phys., Math.))

2008  Doctor of Sciences (Eng.)

Short scientific biography:

Since 1962 up till now Dr. O.P.Datsyshyn works in Karpenko Physico-Mechanical Institute of National Academy of Science of Ukraine. Since 2008 up till today she works as Leading Research Scientist.

In 1974 O.P.Datsyshyn maintained the candidate thesis entitled Limiting equilibrium of plates, weakened by system of cracks and was obtained the title of Philosophy Doctor (Phys., Math.).

In 2008 Dr. O.P.Datsyshyn maintained the doctor thesis entitled Computational models of fracture mechanics for estimation of solids durability under their cyclic contact interaction and was obtained the title of Doctor of Sciences (Eng.).

In 1980 she was a visiting lecturer in Ivan Franko State University (the course Mathematical Problems of the Theory of Cracks).

Since 1980 till 1988 Dr. O.P.Datsyshyn worked as a Secretary of All-Union Scientific Programme Physico-Chemical Mechanics of Brittle Fracture.

Since November 4 to November 30, 1995 she worked as a visiting scientist in different scientific centers of India within the frames of Indo-Ukrainian Programme of cooperation in science and technology (Regional Research Laboratory, Bhopal; Defense Metallurgical Research Laboratory, Hyderabad; National Aerospace Laboratory, Bangalor).

Under the nomination UK Royal Society Dr. O.P.Datsyshyn worked in Advanced Railway Research Centre at the University of Sheffield in 1996.

In 1995 Dr. O.P.Datsyshyn was awarded a State Prize of Ukraine in the field of Science and Technique.

Since 1992 O.P.Datsyshyn is the Member of Ukrainian Society of Fracture Mechanics (USFM) and since 2000 she is the Member of European Structural Integrity Society (ESIS) (in particle Member of TC24 Integrity of Railway Structure). 

Area specification:

Mechanics of deformable solid, mathematical cracks theory, contact fatigue fracture mechanics, rolling contact fatigue, fretting fatigue, mathematical modeling of the fatigue cracks growth and damages formation (fracture and wear processes), durability of rail/wheel systems.

Publications:

She has over 175 published scientific papers, among them publications in international journals Wear, Engineering Fracture Mechanics, International Journal of Fatigue, International Journal of Fracture and one monograph.

Citation Report:  h-index    7  (Scopus, Web of Science)

Surname and forenames: PANASYUK Volodymyr Vasyliovych

Title: Dr. Sc. (Eng.); Professor, Academician of the National Academy of Sciences of Ukraine

 Address of the Institution:

Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine,
5, Naukova St., 79060, Lviv, Ukraine
Tel.: 38(032)2648688,   Fax: 38(032)2649427

Education:

19471951   Physics and Mathematics Faculty, Ivan Franko State University, Lviv, Ukraine

This book focuses on surface layers fracture of cyclical contacting bodies (machine parts). Calculation models and calculating procedures of stress-strain states of cyclically contacting solids with cracks, are included. Recommendations for the optimization of operating parameters of joints (contact stresses magnitude, friction/lubrication conditions, materials crack resistance etc) for elements of rolling pairs (wheel-rail systems, backup roll - working roll of rolling mills etc.) and some fretting pairs are formulated.