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A semi-numerical approach to the buckling and post-buckling solution of plate 板屈曲和后屈曲解的半数值方法
Advances in Engineering Software and Workstations Pub Date : 1991-05-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90003-M
P.W. Khong, Michael W.S. Lau, Y.W. Chan
{"title":"A semi-numerical approach to the buckling and post-buckling solution of plate","authors":"P.W. Khong,&nbsp;Michael W.S. Lau,&nbsp;Y.W. Chan","doi":"10.1016/0961-3552(91)90003-M","DOIUrl":"10.1016/0961-3552(91)90003-M","url":null,"abstract":"<div><p>In this semi-numerical approach to buckling of plates, a combination of polynomial and trigonometric functions are used as displacement functions in the Rayleigh-Ritz method. It is shown that a variety of loading and boundary conditions can be handled using simple variation of the trigonometric function proposed here. A two-dimensional plate buckling problem is therefore reduced to selecting one of the set of trigonometric function shown. The buckling coefficient values are then computed as eigenvalues of the stiffness and geometric matrix pair. These values compare well with available analytical and numerical approach solutions. The approach can also be extended to post buckling analysis using the eigenvectors found.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 3","pages":"Pages 123-129"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90003-M","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54043748","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: 2
Computer aided minimum weight design using BEM 基于边界元法的计算机辅助最小重量设计
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90021-U
J. Abe, T. Nagai, N. Kamiya, E. Kita
{"title":"Computer aided minimum weight design using BEM","authors":"J. Abe,&nbsp;T. Nagai,&nbsp;N. Kamiya,&nbsp;E. Kita","doi":"10.1016/0961-3552(91)90021-U","DOIUrl":"10.1016/0961-3552(91)90021-U","url":null,"abstract":"<div><p>A mathematical programming technique and the boundary element method are combined to create the optimized shape of machine elements and structural components subjected to static external loads. The structural stress/deformation analysis and sensitivity analysis can be performed more correctly and elegantly by boundary discretization alone. The optimizer employed here is the so-called “method of inscribed hypersphere” which is known to be fitted for the object and constraint functions with weak nonlinearity. Minimum weight design of two-dimensional elastic structures is considered under the prescribed constraint conditions. Some numerical results demonstrate the validity of the proposed computational system even for the problem with the restriction expressed by an inequality.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 68-72"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90021-U","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78024286","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: 1
Computational engineering with boundary elements: The proceedings of betech 90 计算工程与边界元素:会议论文集1990
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90024-X
{"title":"Computational engineering with boundary elements: The proceedings of betech 90","authors":"","doi":"10.1016/0961-3552(91)90024-X","DOIUrl":"https://doi.org/10.1016/0961-3552(91)90024-X","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 104-106"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90024-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137221379","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
Calendar events 日历事件
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90025-Y
{"title":"Calendar events","authors":"","doi":"10.1016/0961-3552(91)90025-Y","DOIUrl":"https://doi.org/10.1016/0961-3552(91)90025-Y","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 107-108"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90025-Y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137221378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of the boundary curves in 2D finite elements codes 二维有限元程序中边界曲线的识别
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90022-V
Ireneusz Szczygiel, Andrzej Szlek, Ryszard Bialecki, Andrzej J. Nowak
{"title":"Identification of the boundary curves in 2D finite elements codes","authors":"Ireneusz Szczygiel,&nbsp;Andrzej Szlek,&nbsp;Ryszard Bialecki,&nbsp;Andrzej J. Nowak","doi":"10.1016/0961-3552(91)90022-V","DOIUrl":"10.1016/0961-3552(91)90022-V","url":null,"abstract":"<div><p>A simple algorithm for identification of the discretized curves bounding 2D regions is described. For a given FEM net defined by the (domain) nodal connectivity array, a boundary nodal connectivity array is generated. The latter contains subsequent boundary elements defined by nodes lying on the boundaries. Boundary elements are grouped into closed contours forming the curves bounding the region under consideration. The algorithm leads to substantial savings in data preparation time. It can also be used to check the consistency of the input connectivity array. A list of appropriate routines is included.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 73-83"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90022-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54043910","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: 4
On evaluating integrals with strongly singular integrands 关于用强奇异积分求积分
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90023-W
Autar K. Kaw
{"title":"On evaluating integrals with strongly singular integrands","authors":"Autar K. Kaw","doi":"10.1016/0961-3552(91)90023-W","DOIUrl":"10.1016/0961-3552(91)90023-W","url":null,"abstract":"<div><p>The solution of many mixed boundary value problems in engineering is found in terms of singular integral equations. These equations may require numerical evaluation of integrals with strongly singular integrands. Two simple algorithms based on an adaptive scheme are written to evaluate these integrals in the Hadamard sense. The results are compared with exact results available for specific integrands.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 84-103"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90023-W","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54044307","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: 4
Upwind parameters for the numerical solution of the compressible flow Euler equations 可压缩流动欧拉方程迎风参数的数值解
Advances in Engineering Software and Workstations Pub Date : 1991-03-01 Epub Date: 2003-03-05 DOI: 10.1016/0961-3552(91)90020-5
Sergio R. Idelsohn
{"title":"Upwind parameters for the numerical solution of the compressible flow Euler equations","authors":"Sergio R. Idelsohn","doi":"10.1016/0961-3552(91)90020-5","DOIUrl":"10.1016/0961-3552(91)90020-5","url":null,"abstract":"<div><p>The present work generalises the earlier work in which a variational principle technique was presented in order to evaluate the magnitude of upwind required to solve the compressible flow equations.</p><p>The technique proposed allows the choice of nodes where upwind is required in each of the relevant equations. It is a simple and mathematically consistent way of evaluating the amount of upwind or artificial viscosity to be introduced at every node and every equation involved.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 2","pages":"Pages 58-67"},"PeriodicalIF":0.0,"publicationDate":"1991-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90020-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86648087","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
On load interaction in the non linear buckling analysis of cylindrical shells 圆柱壳非线性屈曲分析中的载荷相互作用
Advances in Engineering Software and Workstations Pub Date : 1991-01-03 DOI: 10.1016/0965-9978(91)90007-O
L. Godoy, S. Idelsohn, E. Barbero
{"title":"On load interaction in the non linear buckling analysis of cylindrical shells","authors":"L. Godoy, S. Idelsohn, E. Barbero","doi":"10.1016/0965-9978(91)90007-O","DOIUrl":"https://doi.org/10.1016/0965-9978(91)90007-O","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"29 1","pages":"46-50"},"PeriodicalIF":0.0,"publicationDate":"1991-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85187840","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: 4
Software engineering environments—Concepts and technology 软件工程环境-概念和技术
Advances in Engineering Software and Workstations Pub Date : 1991-01-01 Epub Date: 2003-03-19 DOI: 10.1016/0961-3552(91)90053-7
A. Chaudouet-Miranda
{"title":"Software engineering environments—Concepts and technology","authors":"A. Chaudouet-Miranda","doi":"10.1016/0961-3552(91)90053-7","DOIUrl":"10.1016/0961-3552(91)90053-7","url":null,"abstract":"","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 1","pages":"Page 54"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90053-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84623849","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
On load interaction in the non linear buckling analysis of cylindrical shells 圆柱壳非线性屈曲分析中的载荷相互作用
Advances in Engineering Software and Workstations Pub Date : 1991-01-01 Epub Date: 2003-03-19 DOI: 10.1016/0961-3552(91)90045-6
Luis A. Godoy, Sergio R. Idelsohn, Ever Barbero
{"title":"On load interaction in the non linear buckling analysis of cylindrical shells","authors":"Luis A. Godoy,&nbsp;Sergio R. Idelsohn,&nbsp;Ever Barbero","doi":"10.1016/0961-3552(91)90045-6","DOIUrl":"https://doi.org/10.1016/0961-3552(91)90045-6","url":null,"abstract":"<div><p>The elastic stability of shells or shell-like structures under two independent load parameters is considered. One of the loads is associated to a limit point form of buckling, whereas the second is a bifurcation. A simple one degree of freedom mechanical system is first investigated, for which an analytical solution is possible. Next, a cylindrical shell under the combined action of axial load and localised lateral pressure is studied via a non linear, two-dimensional, finite element discretization. It is shown that both problems display the same general behaviour, with a stability boundary in the load space which is convex towards the region of stability. The results show the need of performing a full non-linear analysis to evaluate the stability boundary for the class of interaction problems considered.</p></div>","PeriodicalId":100044,"journal":{"name":"Advances in Engineering Software and Workstations","volume":"13 1","pages":"Pages 46-50"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0961-3552(91)90045-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137291400","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
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