Evaluation of the pull-out strength of galvanised steel strips in a cement-based material     

Maziar Ramezani  Juan Vilches  Thomas Neitzert 《浙江大学学报(A卷英文版)》2013,14(12):843-855

The study of the interfacial and bond behaviour of reinforced cement-based materials is important for understanding the mechanical behaviour of such composites. This paper presents extensive experimental, theoretical and finite element analyses of pull-out tests of galvanised steel strips with different geometries, in lightweight cement-based material blocks with different densities and mechanical properties. The theoretical model proposed here is capable of determining the pull-out strength and bond stress versus the slip relationship between components of reinforced cement-based materials. This bond-slip relationship is then implemented in finite element simulation through the user-defined subroutine of ABAQUS software. Based on the results, a trilinear bond-slip model is suitable for modelling the interface between a steel strip and a cement-based material interface.  相似文献   

Impact of the E-Journals of Academic Libraries Consortium on Research Productivity: An Iranian Consortium Experience     

Mansoureh Damerchiloo  Abbas Haghparast  Aboozar Ramezani  Vahideh Zeinali  Naser VazifeShenas  Behnaz Jafari 《资料收集管理》2020,45(3):235-251

Abstract

This article reports on a research project undertaken at a university in Iran to study the impact of academic libraries consortium on research productivity. The overall objective of study was to examine to what extent the subscribed resources meet the needs of users and to determine the quality of cited journals by researchers. It also examined the relationship between the access method to a cited journal, its quality and the average citing to it. The results of the present research can help decision makers for selecting and providing suitable resources and databases based on the users' needs.  相似文献