an investigation into the buckling behavior of the compression members using finite element method
Authors
abstract
the collapse of a compression member gives rise to decrease of the load carrying capacity of the member. to perform a nonlinear analysis, in addition to the precritical behavior, the post-critical behavior of the compression member also must be determined. in this study, because of certain advantages of the finite element method, this method has been selected to evaluate the axial load-axial displacement relationships of the compression members. for determining the behavior of a pinended member using finite element method, the following observations have been considered: an elastic-pefectly plastic material behavior is assumed; the intial curvature associated with the bowing of the member has been considered as an initial imperfection; each member has divided into ten element and behavior of each element has been modeled by the kirchhoff thin beam element; both of the material and geometrical nonlinearity has been considered in the analysis; to trace the equilibrium path through a critical point into the post critical range, the arc-length method is used. the member type most commonly used in space structures is circular hollow (tubular) section and the present study is limited to the investigation of the post-critical properties of compressive tubular members with various selenderness ratios and also various imperfections.
similar resources
buckling of viscoelastic composite plates using the finite strip method
در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....
Investigation into the geometrical loop effect on tensile behavior of single bar warp-knitted fabric using finite element method
full text
an inverstigation into the shrinkage behavior (kinetics) of microfilled hybrid and nano dental composites
چکیده ندارد.
15 صفحه اولAn Investigation of the Seismic Interaction of Surface Foundations and Underground Cavities Using Finite Element Method
In this study, the seismic interaction of surface foundations and underground cavities was investigated. For this purpose, a parametric study of geometric dimensions of the foundation and cavity, their location, and the effect of the interaction between surface foundations and underground cavities was evaluated. The variable parameters include the ratio of the overburden height to the foundatio...
full textan investigation into translation of cultural concepts by beginner and advance student using think – aloud protocols
this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...
an investigation about the relationship between insurance lines and economic growth; the case study of iran
مطالعات قبلی بازار بیمه را به صورت کلی در نظر می گرفتند اما در این مطالعه صنعت بیمه به عنوان متغیر مستفل به بیمه های زندگی و غیر زندگی شکسته شده و هم چنین بیمه های زندگی به رشته های مختلف بیمه ای که در بازار بیمه ایران سهم قابل توجهی دارند تقسیم میشود. با استفاده از روشهای اقتصاد سنجی داده های برای دوره های 48-89 از مراکز ملی داده جمع آوری شد سپس با تخمین مدل خود بازگشتی برداری همراه با تعدادی ...
15 صفحه اولMy Resources
Save resource for easier access later
Journal title:
مهندسی سازهجلد ۲، شماره ۲، صفحات ۲۸-۳۴
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023