Zobrazeno 1 - 10
of 1 626
pro vyhledávání: '"drilling method"'
Autor:
Sviatoslav Eleonsky, Vladimir Pisarev, Eugene S. Statnik, Alexey I. Salimon, Alexander M. Korsunsky
Publikováno v:
Frattura ed Integrità Strutturale, Vol 18, Iss 69, Pp 192-209 (2024)
The determination of residual stresses by combining blind hole drilling and optical interferometric measurement of relief deformation is re-visited to evaluate its applicability to aerospace structures. The experimental methodology involves drilling
Externí odkaz:
https://doaj.org/article/9b61c52441334d80bcdbd3ffa8bbccfe
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 426-441 (2024)
Aiming at the problems of gas lift reverse circulation shaft washing slag discharge and low drilling efficiency in the application of vertical shaft drilling method in the Jurassic strata coal mines in western China, taking ϕ4.2 m advanced drilling
Externí odkaz:
https://doaj.org/article/d8379432ea5947a2b0e1fce8c33f395a
Autor:
Qian Wang, Tonghan Zhang
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-12 (2024)
Abstract Objective To investigate the clinical application of an ultrasonic bone knife (UBK) combined with a dental electric motor (DEM) in the extraction of mandibular middle and low impacted teeth. Methods From January 2022 to May 2023,200 patients
Externí odkaz:
https://doaj.org/article/c219ee1b42f34109a277a936c2186280
Autor:
Jiangning Pei, Shengbao Wang, Songlin Qin, Zhijia Yu, Jianzhong Gao, Jichen Xiao, Zhonglong Li
Publikováno v:
Sensors, Vol 24, Iss 19, p 6243 (2024)
An iterative correction method for the stress release coefficient, leveraging numerical simulation, has been innovatively developed to address the significant error issues associated with the blind-hole method in high-stress residual stress testing o
Externí odkaz:
https://doaj.org/article/ea4103cf3447425c98677c66d083d596
Autor:
Xuewen Li, Jiwei Liu, Hao Wu, Kesong Miao, He Wu, Rengeng Li, Chenglu Liu, Wenbin Fang, Guohua Fan
Publikováno v:
Heliyon, Vol 10, Iss 7, Pp e28348- (2024)
Residual stress refers to self-equilibrating stress present within materials, with the potential to significantly affect manufacturing processes and performance. Therefore, accurately and quantitatively measuring residual stress is always of great im
Externí odkaz:
https://doaj.org/article/1bb03653a6a7473d9572ca824ddb510c
Publikováno v:
Applied Sciences, Vol 14, Iss 10, p 3992 (2024)
The hole-drilling method (HDM) is a common technique used for the determination of residual stresses, especially for metal alloy components, though also for polymers. This technique is usually implemented with strain gages, though other methods for d
Externí odkaz:
https://doaj.org/article/99dd367f6c2f4edbb0d85b17e11e1b2a
Autor:
Kralovanec Jakub, Moravčík Martin
Publikováno v:
Civil and Environmental Engineering, Vol 19, Iss 1, Pp 167-177 (2023)
Determination of the stress state in concrete structures is a very important, but difficult task. In the case of new structures, it is possible to easily instal measurement instruments which can provide important data as a part of real-time monitorin
Externí odkaz:
https://doaj.org/article/954ac0a5a0754bd3a815b946220052d3
Akademický článek
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Autor:
Abba A. Abubakar, Akeem Yusuf Adesina, Abul Fazal M. Arif, Jafar Albinmousa, Khaled S. Al-Athel, S. Sohail Akhtar
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 867-881 (2022)
Plasma spraying is commonly used to deposit thick metallic coatings. The high deposition temperature and complex interaction of the process parameters result in tensile residual stresses in thick metallic layers. Tensile residual stresses are widely
Externí odkaz:
https://doaj.org/article/6218b7736d4f4d93957c8e9cfa59955d
Publikováno v:
International Journal for Computational Civil and Structural Engineering, Vol 19, Iss 2 (2023)
Stability calculation of steel rods should consider residual stresses, as well as local imperfections (bends, buckling). Codes of EU, USA, PCR considering difference between welded and rolled I-beams on compression and compression with bending. Coeff
Externí odkaz:
https://doaj.org/article/a626e636b3c94bc5b05c145c5a89d670