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Threaded connectors for sandwich pipes – Part 2: Optimisation of stress relief groove [PDF]
International Journal of Pressure Vessels and Piping, 2018 Abstract A concept for using snap-fit connectors in sandwich pipes is investigated numerically in two companion papers using a combination of 2D axisymmetric and 3D finite element models in Abaqus. In the Part 1 paper, results of key parametric studies related to the installation analysis of sandwich pipes in deepwater are reported. The modification
Ikechukwu Onyegiri, Maria Kashtalyan
exaly +5 more sources
Applied SciencesThis paper studies the effectiveness of the stress-relief groove on the floor of deep coal roadway and determines the influence of the stress-relief groove parameters on the surrounding rock through qualitative analysis.
Yanting Qin +6 more
doaj +4 more sources
Reliability design of relief groove for torque shaft of shearer [PDF]
Advances in Mechanical Engineering, 2020 On cutting coal, the cutting resistance of a shearer may change suddenly due to uneven coal quality. It can lead to sudden acceleration of the cutting motor, deceleration, overload shutdown, and even burnout of the motor.
Hongbin Gao, Qianqian Zhang
doaj +2 more sources
Difficult clinical management of groove pancreatitis: a case report [PDF]
Einstein (São Paulo)Groove pancreatitis is a rare form of chronic pancreatitis that affects the anatomical area between the head of the pancreas, medial wall of the second part of the duodenum, and common bile duct, known as the groove area. We present the case of a 40-year-
Matheus Marcelino Dias +4 more
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Size optimization of shoulder filleted shafts with relief grooves for improving their fatigue life
Ingeniería e Investigación, 2017 Although in scientific literature there are studies regarding the inclusion of relief grooves in order to diminish the amount of stress concentration in stepped shafts, the incorporation of optimization algorithms capable of parametrically determining ...
Juan Manuel González-Mendoza +4 more
doaj +5 more sources
Numerical study on the influence of artificial internal stress relief groove on fretting fatigue in a shrink-fitted assembly [PDF]
Tribology International, 2020 Fretting fatigue failure occurs in shrink-fitted assemblies due to the combination of high stresses and relative displacements near the contact edge. Due to these high stresses, fatigue crack initiates followed by crack propagation until final rupture.
Diego Erena, Carlos Navarro, Reza Talemi
exaly +5 more sources
Jixie chuandong, 2023 In order to solve the problems in the existing gear pump with another trapped oil buffer groove, an external gear pump with axial stepped-gear structure for realizing two different contact ratios is proposed; the trapped-oil load flow from the gear ...
Wang Hao, Song Anran, Li Yulong
doaj +1 more source
Monitoring and Analysis of Expansion Relief Grooves to Control the Arch Expansion Disease
BuildingsExpansion relief groove (ERG) controlling excess arch expansion has become a research hotspot. Based on statistical arch expansion data, this paper proposes a novel structural design for ERG, selecting asphalt-treated base (ATB-25) and graded gravel (GG)
Xiangyu Li, Xuesong Mao, Qian Wu, Pei He
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Higher-speed Trapped-oil Pressure Research and Relief-groove Invention for Gear Pump
Jixie chuandong, 2019 To achieve the abundant relief of high-speed trapped-oil for gear pump，based on the same tooth profile parameters and working conditions，the experiment，simulation and theoretical analysis are carried out successively. Secondly，the shape，position and size
Changming Wen, Yulong Li
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Zairyo/Journal of the Society of Materials Science, Japan, 2007 Stress relief groove has been used to improve the fretting fatigue strength of fitted part between mechanical components. However, the effect of groove has not been fully understood and there are not enough investigations to determine the optimal groove shape.
Yoshiyuki KONDO +3 more
exaly +3 more sources