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FEM-BEM Modeling of Dynamic Responses of a Fluid-Filled Lined Tunnel under a Water Hammer 充填流体衬砌隧道在水锤作用下的动态响应 FEM-BEM 建模
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-06-01 DOI: 10.1061/jenmdt.emeng-7339
Chao Huang, Jiangu Qian
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引用次数: 0
Effective Warping Properties and Buckling Analysis of Fiber-Reinforced Elastomeric Isolators 纤维增强弹性体隔离器的有效翘曲特性和屈曲分析
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7395
Eduardo J. Montalto, Dimitrios Konstantinidis
{"title":"Effective Warping Properties and Buckling Analysis of Fiber-Reinforced Elastomeric Isolators","authors":"Eduardo J. Montalto, Dimitrios Konstantinidis","doi":"10.1061/jenmdt.emeng-7395","DOIUrl":"https://doi.org/10.1061/jenmdt.emeng-7395","url":null,"abstract":"","PeriodicalId":50205,"journal":{"name":"Journal of Engineering Mechanics","volume":"78 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141057561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear Dynamics of Flexible Posttensioned Rocking Walls 柔性后张法岩石墙的非线性动力学
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7054
Chi-Pu Lin, Richard Wiebe, J. W. Berman
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引用次数: 0
A Graphical Solution Framework for Elastoplastic Cylindrical Cavity Problem in Mohr–Coulomb Material 莫尔-库仑材料中弹塑性圆柱腔问题的图解框架
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7433
Sheng-Li Chen
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引用次数: 0
A Mathematical Model of Nonlinear Aerodynamic Damping for High-Rise Buildings 高层建筑非线性空气动力阻尼数学模型
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7573
Yi Hui, Zhen Liu, Kunpeng Guo, Qingshan Yang
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引用次数: 0
Mechanism-Based Modeling of Strain Rate–Dependent Transition of Macromechanical Behavior Accompanied by Temperature Rise Effects of a Toughened Polymer Composite 基于机理的增韧聚合物复合材料随温度升高效应发生的宏观力学行为随应变速率变化的模拟
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7416
Shahzad Fateh Ali, Jitang Fan
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引用次数: 0
Reliability Updating Method with Copula-Based Weighted Low-Discrepancy Samplings 采用基于 Copula 的加权低差异采样的可靠性更新方法
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-05-01 DOI: 10.1061/jenmdt.emeng-7529
Jian Ji, Taojun Wang
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引用次数: 0
Crack-Parallel Stress Effect on Fracture of Fiber-Reinforced Concrete Revealed by Gap Tests 间隙试验揭示的裂缝平行应力对纤维增强混凝土断裂的影响
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-04-01 DOI: 10.1061/jenmdt.emeng-7531
Linfei Li, Boning Wang, Houlin Xu, Hoang T. Nguyen, Z. Bažant, M. Hubler
: This paper presents an experimental study on how the crack-parallel stress affects the fracture properties of fiber-reinforced concrete (FRC) using the gap test — a new simple fracture test invented and used for concrete at Northwestern University in 2020. First, it was conducted for plain concrete and was successfully applied to cross-ply carbon-fiber composite and to aluminum. An advantage of this test is that it is unambiguous because the test setup changes from one statically determinate configuration to another. The gap test, combined with the standard notched three-point-bend test, is now applied to geometrically scaled FRC specimens to determine how the fracture energy, G f , and the effective size, c f , of the fracture process zone (FPZ), are changed by the crack-parallel stress, σ xx . For σ xx equal to about 2 = 3 of the standard uniaxial compression strength, the increase in G f is 64% and 78% for the two FRCs, respectively, which is large but not as large as the 126% increase observed in tests of plain concrete. This indicates that the fiber reinforcement mitigates the effect of σ xx , while introducing some degree of ductility into the fracture process. The compressive σ xx also increases the effective size of the FPZ by about 81% and 64% while such increase is 134% in plain concrete. Because crack-parallel stresses are ubiquitous in practice, the implications for design are significant. DOI: 10.1061/JENMDT.EMENG-7531. ©
:本文介绍了一项关于裂缝平行应力如何影响纤维增强混凝土（FRC）断裂性能的实验研究，采用的是 2020 年西北大学发明并用于混凝土的新型简易断裂试验--间隙试验。该试验首先用于素混凝土，随后成功应用于交叉层碳纤维复合材料和铝。这种试验的优点在于，试验装置从一种静力确定构型变为另一种静力确定构型时，试验结果是明确的。现在将间隙试验与标准缺口三点弯曲试验相结合，应用于按几何比例缩放的 FRC 试样，以确定断裂能 G f 和断裂加工区（FPZ）的有效尺寸 c f 如何受裂纹平行应力 σ xx 的影响而发生变化。当 σ xx 约等于标准单轴抗压强度的 2 = 3 时，两种纤维增强混凝土的 G f 分别增加了 64% 和 78%，虽然增幅较大，但不及在素混凝土试验中观察到的 126% 的增幅。这表明纤维加固减轻了 σ xx 的影响，同时在断裂过程中引入了一定程度的延展性。抗压 σ xx 还使 FPZ 的有效尺寸分别增加了约 81% 和 64%，而在素混凝土中，这一增幅为 134%。由于裂缝平行应力在实践中无处不在，因此对设计具有重要意义。DOI: 10.1061/JENMDT.EMENG-7531.©
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引用次数: 0
Discretize-Then-Optimize Modeling for Dynamic Force Inversion Based on Runge–Kutta Explicit Time Integration 基于 Runge-Kutta 显式时间积分的动态力反演 "先具体后优化 "模型
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-04-01 DOI: 10.1061/jenmdt.emeng-7336
Stephen Lloyd, Chanseok Jeong
{"title":"Discretize-Then-Optimize Modeling for Dynamic Force Inversion Based on Runge–Kutta Explicit Time Integration","authors":"Stephen Lloyd, Chanseok Jeong","doi":"10.1061/jenmdt.emeng-7336","DOIUrl":"https://doi.org/10.1061/jenmdt.emeng-7336","url":null,"abstract":"","PeriodicalId":50205,"journal":{"name":"Journal of Engineering Mechanics","volume":"8 7","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140354281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on the Mechanism of Tunnel Subhorizontal Jet Grouting Reinforcement Based on a Shell Model on Two-Parameter Foundation 基于双参数地基上壳模型的隧道次水平喷射注浆加固机理研究
IF 3.3 3区 工程技术 Q1 Engineering
Journal of Engineering Mechanics
Pub Date : 2024-04-01 DOI: 10.1061/jenmdt.emeng-7099
Yufeng Shi, Tao Zhang, Chengwei Cao, Xiangsheng Chen, Yonghua Wen
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引用次数: 0
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