... zone (HAZ) are calibrated through the small punch test (SPT) and single edge notch bending (SENB) test. On this basis, the welded pipe model with inner wall defects is established, and a numerical simulation method for dynamic fracture behavior based on damage mechanics is formed. The numerical...

... 2022 T-shaped tube hydroforming numerical simulation hydraulic bursting fracture analysis National Natural Science Foundation of China 10.13039/501100001809 51975267 High-performance and lightweight components were always attractive attention of the aerospace and other...

... to reclosure. The current method often leaves a narrow gap to estimate the full closing status, which will introduce a deviation. To address this issue, a full closing numerical simulation method (FCNSM) is developed to solve the problem of simulation between discontinuous flow field (DFF) and continuous flow...

... 31 05 2021 composite pipe delamination defect burst testing fracture analysis numerical simulation Nowadays, the glass fiber tape reinforced polyethylene (GFTRP) pipe plays an important role in the fields of oil, gas transportation, marine industry, farmland irrigation, and other...

...@zju.edu.cn e-mail:  wudazhuan@zju.edu.cn 24 02 2020 10 03 2021 31 05 2021 pressure relief valve spring-loaded valve nonlinear pressure-flow characteristics optimization numerical simulation fuel supply system In automotive fuel systems, pressure relief valves (PRVs...

... the impacting process. It is assumed that neither the offshore pipeline nor the seabed soil at the initial state has absorbed any form of energy. The total energy of the numerical simulation model, before the lump-shaped object impacts the pipeline, is the kinetic energy of the lump-shaped object. As the lump...

.... For the explosion in the semi-infinite soil layer, there are some experimental results of explosion cavity radius proposed by Wang et al. [ 20 ]. As shown in Fig. 5 , the explosion cavity radius increases gradually in the explosive process. There is a small error between the numerical simulation results...

...Boran Zhang; Wuyi Wan; Li Bi In numerical simulations of hydroturbine systems, the fluid in the draft tube keeps alternating between the free surface flow condition and the pressured flow condition. This combination of free surface flow model and pressured flow model has been a focus of researchers...

...R. Karimi; M. Shariati This paper investigates ratcheting behavior of SS316 L thin-walled steel pipes subjected to cyclic internal pressure experimentally and numerically. Numerical simulations were performed using abaqus software, and nonlinear isotropic/kinematic hardening model. According...

... on the numerical simulation results, the effects of internal pressure, strain rate, length of transition section, and ground subsidence on the maximum von Mises stress of the pipeline are analyzed by orthogonal experimental design method and gray correlation degree. A 4-factor 5-level orthogonal design is shown...

... for engineering applications. Some preliminary conclusions are drawn from the results of the field measurements and the numerical simulation. Pressure fluctuations spread through the pipeline over an appreciable distance. The sensitive frequencies of the pipeline vibration are determined, and the fundamental...

...; published online April 4, 2019. Assoc. Editor: Oreste S. Bursi. 03 12 2018 12 02 2019 gas pipeline gas/solid two-phase flow numerical simulation discrete phase model erosion wear Pipeline is the most important way to transport natural gas. By 2017, the world's oil and gas...

... received January 26, 2019; published online February 21, 2019. Assoc. Editor: Oreste S. Bursi. 02 10 2018 26 01 2019 buried pipe subsidence area numerical simulation mechanical behavior ovality Buried pipes are the main method for oil and gas transportation. Long-distance...

... curved surface was simulated by abaqus . Theoretical results were consistent with numerical simulation results and published experimental results (H. Y. Miao, S. Larose, et al., 2010, “An analytical approach to relate shot peening parameters to Almen intensity,” Surf. Coat. Technol., 205, pp. 2055–2066...

... residual stresses numerical simulation As oil and gas pipelines develop toward large throughput, high pressure, and long distance, and for safety sake, requirement for welding quality is becoming higher and higher [ 1 – 3 ]. Multiwire submerged arc welding (SAW) has been widely applied...

... applications. shape optimization inverse problems glass blowing level set methods numerical simulation Glass blowing is a manufacturing process for the production of hollow, glass containers, such as bottles and jars. In a glass blow process a molten material is brought into a mold...

... of the sensing device are described in detail. Then, experiments are carried out to prove the accuracy and the long-term stability of the sensing device. To verify the accuracy of the device, numerical simulation of the deformation of a pipe model is carried out using finite element method. Results from...

... contact conductance between heating wire and surrounding PE. 31 08 2008 31 07 2009 08 10 2009 fusion welding heat transfer pipelines safety temperature distribution electrofusion joint temperature profile numerical simulation Eigen-line PE has been widely used...

... for study by experimental and finite element numerical simulation methods. The results indicate that an obvious stress concentration exists at the intersection area between vessel and nozzle. The maximum elastic stress occurs at the inside corner of the nozzle-cylinder intersection in transverse section...

...-dimensional, nonlinear, finite element numerical simulation was also performed. The approximate plastic limit load was obtained using a twice-elastic-slope criterion. The plastic deformation characteristics for the analysis model are discussed. The results show that distinct deformation characteristics...