Zobrazeno 1 - 10
of 5 512
pro vyhledávání: '"Stress-state"'
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 4493-4509 (2024)
In this study, the formability of the AZ31B magnesium alloy sheets was investigated in combination of experiment and CPFEM modelling. The deformation mechanisms during the Erichsen forming were revealed and the effect of the related parameters were d
Externí odkaz:
https://doaj.org/article/7eee531ecb2f42c28ed3d84e1939c7a9
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 10, Pp 4046-4065 (2024)
To investigate the long-term stability of deep rocks, a three-dimensional (3D) time-dependent model that accounts for excavation-induced damage and complex stress state is developed. This model comprises three main components: a 3D viscoplastic isotr
Externí odkaz:
https://doaj.org/article/c1b2347dd5234210a624aa10e2a7ee82
Autor:
Jibiao ZHANG, Shang DENG, Jun HAN, Yingtao LI, Dawei LIU, Huabiao QIU, Zhongpei ZHANG, Yuqing LIU
Publikováno v:
Shiyou shiyan dizhi, Vol 46, Iss 4, Pp 775-785 (2024)
The Shunbei oil-and-gas field in the Tarim Basin features a typical strike-slip fault-controlled fractured-vuggy reservoir. The formation of these reservoirs is primarily influenced by fracturing related to structural stress during periods of fault a
Externí odkaz:
https://doaj.org/article/4661f70e76b64b49ad45014968d362b8
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 1104-1116 (2024)
Impact toughness has a strong size effect, which restricts the accurate evaluation of material toughness and safety of structural design. However, our understanding of the internal mechanical mechanism that influences the size effect remains incomple
Externí odkaz:
https://doaj.org/article/e39175a1c138487bb5e3f93a6a513234
Autor:
Serhii R. Lishchuk, Vitalii A. Peshko
Publikováno v:
Journal of Mechanical Engineering, Vol 27, Iss 2, Pp 36-42 (2024)
The paper is devoted to the study of temperature and stress distribution in the medium-pressure rotor of the K-200-130 turbine, which are of considerable interest when predicting the durability of this equipment and extending its operation beyond the
Externí odkaz:
https://doaj.org/article/c5c5d3d81e104223b8155f275e1ba235
Autor:
Liliia S. Rozhok
Publikováno v:
Journal of Mechanical Engineering, Vol 27, Iss 2, Pp 43-53 (2024)
Hollow cylinders of circular cross-section, made of functionally graded materials, are used in many branches of economy as structural elements and parts of machines and units. During manufacturing or in the process of operation of such cylinders, the
Externí odkaz:
https://doaj.org/article/4fa2b24411444897ba6d76cea7093c89
Autor:
S. I. Merkulov
Publikováno v:
Железобетонные конструкции, Vol 6, Iss 2, Pp 3-11 (2024)
The main directions of development of the theory of structural safety of buildings and structures have been formulated. A hierarchical approach to the assessment of structural safety of objects under corrosion damage from structural materials to stru
Externí odkaz:
https://doaj.org/article/ea9ed3b00f694064ba9840edd6fd3831
Autor:
Vladimir E. Antonyuk
Publikováno v:
Механика машин, механизмов и материалов, Iss 2(67), Pp 30-35 (2024)
The necessity of stabilization of ring blanks of low rigidity is substantiated. For stabilization a 6-position loading scheme with uniformly distributed radial forces is proposed, with the possibility to transform into 3- and 2-position loading schem
Externí odkaz:
https://doaj.org/article/6561939fee444935ab3f2715c5c012a5
Autor:
Afshin Fatemi, Bijan Mollaei Dariani
Publikováno v:
Advances in Industrial and Manufacturing Engineering, Vol 9, Iss , Pp 100143- (2024)
Hydro-assisted incremental forming (HAIF) as a hybrid process of incremental forming and hydromechanical deep drawing with enhanced formability resulted of simultaneous exertion of normal and through thickness stresses is introduced in this paper. Ba
Externí odkaz:
https://doaj.org/article/a1707cff14eb4840aecdbda990bb7878
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The Load/Unload Response Ratio (LURR) is a seismic prediction method based on the dynamic evolution of the stress-strain relationship of rocks. By adopting Benioff strain as the response indicator, an in-depth analysis was conducted on the LURR anoma
Externí odkaz:
https://doaj.org/article/2eeee810cfb24054b53f0d3b1514dab9