MANAGEMENT VARIETIES in PROJECT MANAGEMENT for BUILDING CONSTRUCTION

MANAGEMENT VARIETIES in PROJECT MANAGEMENT for BUILDING CONSTRUCTION

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Part of #MANAGEMENT VARIETIES in PROJECT MANAGEMENT for BUILDING CONSTRUCTION# :

Publishing year : 2013

Conference : International Conference on Civil Engineering, Architecture and Sustainable Urban Development

Number of pages : 14

Abstract This article outlines practical solutions in their various varieties, as they result from over 35 years of experience by Mr.Hans Sommer. The respective disadvantages and benefits for the various varieties are often defferently viewed by different clients, depending on their individual priorities. Finaly, this article examines the different types of management varieties with the descript of their traits and the effect of these varieties on project management, and in the last part of the article, these varieties are compare together

STRESS CONCENTRATION FACTORS IN TUBULAR JOINTS UNDER IN PLANE MOMENT LOADING

STRESS CONCENTRATION FACTORS IN TUBULAR JOINTS UNDER IN PLANE MOMENT LOADING

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Part of #STRESS CONCENTRATION FACTORS IN TUBULAR JOINTS UNDER IN PLANE MOMENT LOADING# :

Publishing year : 2008

Conference : The 10th National Conference of Marine Industries of Iran

Number of pages : 8

Abstract: A study is presented of stress concentration factors in tubular K-joints, which are commonly used in offshore platform structures. In this study, the finite element analysis method is used to model tubular K-joints under inplane moment loadings. The aberration of geometric joint parameters was explored to model K-joints. Along the intersection tip, a well-graded finite mesh is generated to boost stress concentration factors. The results of the finite element analyzes were first used to evaluate two sets of commonly used parametric equations that predict the mximum stress concentration factors on the chord's outer surfaces. They were then used to modify the existing parametric equation for predicting stress concentration factors. There is a good agreement between finite element analysis and modified parametric equation results.

A Cyclic Plasticity Model without Yield Surface

A Cyclic Plasticity Model without Yield Surface

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Part of #A Cyclic Plasticity Model without Yield Surface# :

Publishing year : 2007

Conference : Fifteenth Annual Conference of Mechanical Engineering

Number of pages : 7

Abstract: In this study, after reviewing the classical cyclic plasticity models, we present a generalized form of these existing cyclic plasticity models. Using this unique format, the governing relation between stress and strain in deviatoric space can be expressed as two similar equations. The plastic constitutive equation of the model is based on two DP and eint parameters. The first parameter is a scalar function of the material status and the second one is the internal strain parameter representing the hardening rule. Most of the reviewed models will be presented based on these two parameters. Given this unified formulation, a cyclic plasticity model with no reference to yield surface is described. Different materials under a variety of load paths are considered and solved using the new model. The results agree well with available experimental results.