Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Robert Pała"'
Autor:
Irene Sofía Quiñones Varela, Robert Palacios Reyes, Liudmila Corzo Rosales, Ana Cecilia Ortiz Guerrero, Dianelys Aguila Gallo
Publikováno v:
Humanidades Médicas, Vol 5, Iss 3, p 0 (2005)
Se realizó un estudio observacional descriptivo en el Centro Provincial de Retinosis Pigmentaria con el objetivo de describir las características del dibujo libre en el niño con Retinosis Pigmentaria. El universo estuvo constituido por los pacient
Externí odkaz:
https://doaj.org/article/7cb2bdb5f88a43bf8665b5e6200db063
Autor:
Ihor Dzioba, Robert Pała
Publikováno v:
Metals, Vol 9, Iss 5, p 508 (2019)
This paper presents results of strength and fracture toughness properties of low-carbon high-strength Hardox-400 steel. Experimental tests were carried out for specimens of different thickness at wide temperature range from −100 to 20 °C. The depe
Externí odkaz:
https://doaj.org/article/1110ffe3f7a647fc894f7a57e0e75149
Publikováno v:
Materials; Volume 16; Issue 8; Pages: 3017
This paper presents the research results on the mechanical behavior of the low-carbon rolled steel of a sea portal crane after a 33-year operation depending on the operational stresses and rolling direction in order to assess its serviceability. The
Publikováno v:
Engineering Failure Analysis. 141:106715
Autor:
O. T. Tsyrul’nyk, H. V. Krechkovs’ka, Ihor Dzioba, Sebastian Lipiec, Hryhoriy Nykyforchyn, Robert Pała, Oleksandra Student, Olha Zvirko, Myroslava Hredil
Publikováno v:
Materials
Materials, Vol 14, Iss 3247, p 3247 (2021)
Volume 14
Issue 12
Materials, Vol 14, Iss 3247, p 3247 (2021)
Volume 14
Issue 12
This paper summarizes a series of the authors’ research in the field of assessing the operational degradation of oil and gas transit pipeline steels. Both mechanical and electrochemical properties of steels are deteriorated after operation, as is t
Publikováno v:
Acta Mechanica et Automatica, Vol 12, Iss 2, Pp 145-150 (2018)
In the paper are presented test results of fracture process in brittle-to-ductile transition range for two microstructural types of S355JR steel – ferrite-pearlite and ferrite-carbides. For both kinds of S355JR steel obtained in temperature range o
Autor:
Wiktor Wciślik, Robert Pała
Publikováno v:
Materials, Vol 14, Iss 4321, p 4321 (2021)
Materials
Materials
The paper discusses the basic issues of the local approach to ductile fracture of structural metals, with particular emphasis on the failure due to microvoid development. The mechanisms of nucleation of voids around inclusions and precipitates are ch
Publikováno v:
Materials
Materials, Vol 12, Iss 13, p 2140 (2019)
Volume 12
Issue 13
Materials, Vol 12, Iss 13, p 2140 (2019)
Volume 12
Issue 13
The article presents the application of the acoustic emission (AE) technique for detecting crack initiation and examining the crack growth process in steel used in engineering structures. The tests were carried out on 40CrMo steel specimens with a si
Publikováno v:
Materials
Volume 14
Issue 11
Materials, Vol 14, Iss 3117, p 3117 (2021)
Volume 14
Issue 11
Materials, Vol 14, Iss 3117, p 3117 (2021)
Tensile uniaxial test is typically used to determine the strength and plasticity of a material. Nominal (engineering) stress-strain relationship is suitable for determining properties when elastic strain dominates (e.g., yield strength, Young’s mod
Autor:
Robert Pała, Ihor Dzioba
Publikováno v:
Acta Mechanica et Automatica, Vol 10, Iss 3, Pp 201-206 (2016)
The article presents influence of modification of the low-alloy cast steel G17CrMo5-5 by rare earth metals on stress distribution in front of the crack at the initial moment of the crack extension. Experimental studies include determination of streng