Results 1 to 10 of about 336,542 (173)
A Study on Welding Deformation Prediction for Ship Blocks Using the Equivalent Strain Method Based on Inherent Strain [PDF]
Applied Sciences, 2019 The welding process, which accounts for about 60% of the shipbuilding process, inevitably involves weld deformation. Considering this, productivity can be significantly increased if weld deformation can be predicted during the design phase, taking into account the fabrication order.
Yongtai Kim, Jaewoong Kim, Sungwook Kang
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A characterization method for equivalent elastic modulus of rock based on elastic strain energy
Frontiers in Earth Science, 2023 Energy is an internal variable during rock deformation and failure, and its dissipation and conversion law can reflect the rock’s internal damage and deterioration state. Analysis of rock deformation and failure process from the perspective of energy is helpful to deeply understand the mechanism of rock damage, fracture and instability failure, and has
Qin, Tao +3 more
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Modified Double-Reduction Method considering Strain Softening and Equivalent Influence Angle
KSCE Journal of Civil Engineering, 2020 Slope stability has been the research focus in the field of geotechnical engineering. Both the asynchronous decay speeds and distinct stability contributions of cohesion c and friction φ during slope instability have been evidenced. In this study, based on linear softening model and weighted average hypothesis, a modified double-reduction method is ...
Yifan Chen +5 more
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COMPUTATION METHOD WITH NODAL LOAD EQUIVALENT TO CREEP STRAIN
Doboku Gakkai Ronbunshu, 1995 FEMによる粘弾性解析においてクリープひずみ等価節点力による近似がよく利用されているが, その利用条件の妥当性についてはほとんど問題にされていないようである. 本ノートでは, トンネルの施工を簡単に模擬し, 厳密解が得られる条件の下で, この近似の精度について検討した. その結果, この近似を利用すると非現実的な解を出力する場合があることを明らかにした. そして, この近似の補正方法を提案し, これが近似解の精度の向上に極めて有効であることを示した.
Yutaka Nashimoto +2 more
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Residual Strength Estimation Method of Soft Coal Based on Equivalent Residual Strain Ratio
Geofluids, 2022 In underground mining engineering, the residual strength of surrounding rock has an important influence on the secondary stress distribution caused by excavation. Generally, the residual strength of coal can be measured by experiments, but for soft coal, due to its large postpeak deformation characteristics and the limitation of strain sensor range, it
Qingquan Liu +7 more
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Welding Distortion Prediction for Multi-Seam Welded Pipe Structures using Equivalent Thermal Strain Method [PDF]
Journal of Welding and Joining, 2021 Distortion prediction of a welded structure is an important way to improve work efficiency and ensure product quality during the fabrication process. Recently, the widely used approaches for evaluating residual deformation include the thermo-elastic-plastic finite element method (TEP-FEM) and the inherent strain method (ISM). The former can accurately
Chunbiao Wu, Chao Wang, Jae-Woong Kim
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Determination of safety factor for rock mass surrounding tunnel by sudden change of equivalent plastic strain in strength reduction method [PDF]
Geotechnical and Geological Engineering, 2021 Abstract A safety factor of rock mass surrounding the tunnel can be determined using the strength reduction method (SRM), however, it is the most important to solve the criterion of critical state. For the stability estimation of rock mass surrounding tunnel, there is need to discuss that it is preferable to use the same criteria for the slope,
Dok Yong Jong +3 more
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Welding Distortion Analysis of Hull Blocks using Equivalent Load Method Based on Inherent Strain [PDF]
Journal of Ship Research, 2012 Welding deformation reduces the dimensional accuracy of ship hull blocks and decreases productivity due to the correction work. Prediction and minimizing of welding distortion at the design stage will lead to higher quality as well as higher productivity.
Yong Tai Kim +3 more
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Improved Equivalent Strain Method for Fatigue Life of Automobile Aluminum Alloy
World Electric Vehicle JournalAutomotive parts are usually subjected to random loads with large mean tensile/compressive stresses under working conditions. It is important for automotive parts to have a long fatigue life under mean stress in practical engineering applications. An equivalent strain model is established here to predict fatigue life considering the influence of mean ...
Shanjie Zhi, Hejian Liu, Xintian Liu
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Welding Deformation Analysis of Plates Using the Inherent Strain-based Equivalent Load Method [PDF]
Journal of the Korean Welding and Joining Society, 2010 IIn this study, used is the equivalent loading method based on the inherent strain to predict the welding deformation of panel members. Equivalent loads are computed from the inherent strain distribution around weld line, and then applied for the linear finite element analysis. Thermal deformation of panel members can be, of course, carried out through
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