Results 1 to 10 of about 206 (115)
Science and Technology of Nuclear Installations, 2021 The safety-risk pressurized thermal shock (PTS) have on a reactor pressure vessel (RPV) is one of the most important studies for the lifetime ageing management of a reactor. Several studies have investigated PTS induced by postulated accidents and other anticipated transients. However, there is no study that analyzes the effect of PTS induced by one of
M. Annor-Nyarko, Hong Xia
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Damage tolerance analysis of wading structures of amphibious aircraft based on Franc3D
Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University, 2022 Aiming at the combined action effect of the corrosive environment of amphibious aircraft wading structures and random loads including water surface take-off and landing impact, based on the standard load spectrum TWIST of transport aircraft, considering the load level and frequency corresponding to the hydrodynamic load, the simulated random load ...
Erming He, Yunwen Feng
exaly +5 more sources
Applied Sciences (Switzerland)Since fan blades are exposed to fatigue, and in some cases harsh loading conditions, they may exhibit fracture failures due to crack propagation, resulting in significant losses. Previous studies of crack propagation in blades are mainly confined to either simplified blade geometry or loads, resulting in a significant discrepancy between the simulated ...
Hatem Mrad +2 more
exaly +5 more sources
Study on Fatigue Mechanism of Main Bearings of Shield Machine based on FRANC3D
Jixie chuandong, 2022 Taking the main bearing of the shield machine as the research object， and a finite element analysis on the contact fatigue mechanism of the main thrust raceway is carried out. Considering the size of the main bearing of the shield machine is too large， a simplified main thrust raceway contact model is used for finite element analysis， and the validity ...
Wei Chen, Jianxin Su
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ANALYSIS AND APPLICATION OF THREE-DIMENSIONAL CRACK GROWTH BASED ON FRANC3D
Jixie qiangdu, 2018 The basic theory and solution flow of Franc3D were firstly focused,then elliptical embedded crack and semielliptical surface crack were employed to verify the stress intensive factor calculation accuracy from Franc3D and typical sheet problem was utilized to validate crack growth analysis reliability.
AI ShuMin +3 more
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Computational modeling of fatigue crack propagation in butt welded joints subjected to axial load. [PDF]
PLoS One, 2019 This article addresses the study of crack behavior elicited on axial fatigue in specimens joined by butt weld made of steel ASTM A36 by using fracture mechanics and simulation software of finite elements (Ansys APDL, Franc3D). The computational model was
Araque O, Arzola N, Varón O.
europepmc +3 more sources
Crack propagation analysis and fatigue life assessment of high-strength bolts based on fracture mechanics. [PDF]
Sci Rep, 2023 To investigate the effect of initial cracks on the fatigue performance of high-strength bolts for high-speed train brake discs, the fatigue crack propagation behavior of high-strength bolts under the coupling action of preload and dynamic fatigue load ...
Zhang P, Li J, Zhao Y, Li J.
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Numerical simulation and experimental verification of fatigue crack propagation in high-strength bolts based on fracture mechanics. [PDF]
Sci Prog, 2023 To investigate the fatigue crack propagation behavior of high-strength bolts for high-speed train brake discs, the fatigue crack propagation of high-strength bolts with initial defects under various load ratios was numerically simulated and ...
Zhang P, Li J, Zhao Y, Li J.
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Science and Technology of Nuclear Installations, 2022 The damage induced pressurized thermal shock (PTS) may pose to a reactor pressure vessel (RPV) is a critical safety requirement assessed as part of the ageing management programme of pressurized water reactors (PWRs).
M. Annor-Nyarko +2 more
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Three-Dimensional Surface Crack Growth of Maraging Steel Spherical Pressure Shell
Journal of Marine Science and Engineering, 2021 This study focused on the three-dimensional surface crack growth of a spherical pressure shell. Eight maraging steel 18Ni (250) samples were fabricated and tested, and the fatigue crack growth rate curves were obtained.
Yongmei Zhu, Rujun Li, Jiahao Yang
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