World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering最新文献_第4页

A Study on the Improvement of the Bond Performance of Polypropylene Macro Fiber According to Longitudinal Shape Change 利用纵向形状变化改善聚丙烯宏纤维粘结性能的研究

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-09-03 DOI: 10.5281/ZENODO.1335810

Sung-Yong Choi, W. Jung, Young-hwan Park

引用次数: 0

Green Bridges and Their Migration Potential 绿色桥梁及其迁移潜力

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-09-03 DOI: 10.5281/ZENODO.1335812

J. Žák, A. Florian

引用次数: 4

Stack Ventilation for an Office Building with a Multi-Story Atrium 多层中庭办公楼的烟囱通风

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-09-01 DOI: 10.5281/zenodo.1335728

Karina Natali, W. Chiang

引用次数: 0

Finite Element Modeling of two-dimensional Nanoscale Structures with Surface Effects 具有表面效应的二维纳米结构的有限元建模

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2010-12-20 DOI: 10.5281/ZENODO.1055039

Weifeng Wang, Xianwei Zeng, J. Ding

{"title":"Finite Element Modeling of two-dimensional Nanoscale Structures with Surface Effects","authors":"Weifeng Wang, Xianwei Zeng, J. Ding","doi":"10.5281/ZENODO.1055039","DOIUrl":"https://doi.org/10.5281/ZENODO.1055039","url":null,"abstract":"Nanomaterials have attracted considerable attention\u0000during the last two decades, due to their unusual electrical, mechanical\u0000and other physical properties as compared with their bulky\u0000counterparts. The mechanical properties of nanostructured materials\u0000show strong size dependency, which has been explained within the\u0000framework of continuum mechanics by including the effects of surface\u0000stress. The size-dependent deformations of two-dimensional\u0000nanosized structures with surface effects are investigated in the paper\u0000by the finite element method. Truss element is used to evaluate the\u0000contribution of surface stress to the total potential energy and the\u0000Gurtin and Murdoch surface stress model is implemented with\u0000ANSYS through its user programmable features. The proposed\u0000approach is used to investigate size-dependent stress concentration\u0000around a nanosized circular hole and the size-dependent effective\u0000moduli of nanoporous materials. Numerical results are compared with\u0000available analytical results to validate the proposed modeling\u0000approach.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122116337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Dynamic Analysis Of Porous Media Using Finite Element Method 多孔介质的有限元动力学分析

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2009-10-22 DOI: 10.5281/zenodo.1062973

M. Khiavi, A. M. Gharabaghi, K. Abedi

{"title":"Dynamic Analysis Of Porous Media Using Finite Element Method","authors":"M. Khiavi, A. M. Gharabaghi, K. Abedi","doi":"10.5281/zenodo.1062973","DOIUrl":"https://doi.org/10.5281/zenodo.1062973","url":null,"abstract":"The mechanical behavior of porous media is governed by the interaction between its solid skeleton and the fluid existing inside its pores. The interaction occurs through the interface of gains and fluid. The traditional analysis methods of porous media, based on the effective stress and Darcy's law, are unable to account for these interactions. For an accurate analysis, the porous media is represented in a fluid-filled porous solid on the basis of the Biot theory of wave propagation in poroelastic media. In Biot formulation, the equations of motion of the soil mixture are coupled with the global mass balance equations to describe the realistic behavior of porous media. Because of irregular geometry, the domain is generally treated as an assemblage of fmite elements. In this investigation, the numerical formulation for the field equations governing the dynamic response of fluid-saturated porous media is analyzed and employed for the study of transient wave motion. A finite element model is developed and implemented into a computer code called DYNAPM for dynamic analysis of porous media. The weighted residual method with 8-node elements is used for developing of a finite element model and the analysis is carried out in the time domain considering the dynamic excitation and gravity loading. Newmark time integration scheme is developed to solve the time-discretized equations which are an unconditionally stable implicit method Finally, some numerical examples are presented to show the accuracy and capability of developed model for a wide variety of behaviors of porous media.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125445671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation into the Bond between CFRP and Steel Plates 碳纤维布与钢板粘结性能的研究

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2009-05-22 DOI: 10.1201/9780203970850.CH82

S. Fawzia, M. A. Karim

引用次数: 9

Nonlinear Finite Element Modeling of Unbonded Steel Reinforced Concrete Beams 无粘结钢筋混凝土梁的非线性有限元建模

World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 1900-01-01 DOI: 10.5281/ZENODO.1099310

Fares Jnaid, R. Aboutaha

{"title":"Nonlinear Finite Element Modeling of Unbonded Steel Reinforced Concrete Beams","authors":"Fares Jnaid, R. Aboutaha","doi":"10.5281/ZENODO.1099310","DOIUrl":"https://doi.org/10.5281/ZENODO.1099310","url":null,"abstract":"In this paper, a nonlinear Finite Element Analysis (FEA) was carried out using ANSYS software to build a model able of predicting the behavior of Reinforced Concrete (RC) beams with unbonded reinforcement. The FEA model was compared to existing experimental data by other researchers. The existing experimental data consisted of 16 beams that varied from structurally sound beams to beams with unbonded reinforcement with different unbonded lengths and reinforcement ratios. The model was able to predict the ultimate flexural strength, load-deflection curve, and crack pattern of concrete beams with unbonded reinforcement. It was concluded that when the when the unbonded length is less than 45% of the span, there will be no decrease in the ultimate flexural strength due to the loss of bond between the steel reinforcement and the surrounding concrete regardless of the reinforcement ratio. Moreover, when the reinforcement ratio is relatively low, there will be no decrease in ultimate flexural strength regardless of the length of unbond. Keywords—FEA, ANSYS, Unbond, Strain.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124812115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5