Elastic-plastic multi scale approach for localization problems—the embedded unit cell

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

תקציר

This paper presents theoretical research of multi scale analysis of wide variety of composite materials, such as aluminum alloy or cement matrix with fibers or cement mass containing aggregates. We propose analysis approach, called Embedded Unit Cell (EUC), based on milestones of homogenization theory. The developed mathematical formulation was implemented using the Finite Elements Software package Simulia Abaqus. The aim of the EUC approach is to evaluate the response of composites using the solution sequence of homogenization theory, but to enhance the applicability of classical homogenization to structure zones that can’t be analyzed using classical homogenization due to method restrictions, such as the essential periodicity assumption. The verification studies include several selected cases, such as Local Global problem or boundary zones of homogeneous structure. The mathematical formulation as well as the numerical and thus software implementation are compatible with physical cases containing pure elastic and combined elastic plastic types of response. For the approach validation purposes, the selected examples can be mostly solved using classical homogenization, since they are based on heterogeneous material with periodic structure. Nevertheless, the benefit of the presented approach is in accurate evaluation of mechanical response in zones, where both or any of geometrical and material periodicity can’t be assumed.

שפה מקוריתאנגלית
כותר פרסום המארחComputational Modelling of Concrete Structures - Proceedings of the conference on Computational Modelling of Concrete and Concrete Structures, EURO-C 2018
עורכיםBernhard Pichler, Jan G. Rots, Günther Meschke
עמודים149-154
מספר עמודים6
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 2018
פורסם באופן חיצוניכן
אירועConference on Computational Modelling of Concrete and Concrete Structures, EURO-C 2018 - Bad Hofgastein, אוסטריה
משך הזמן: 26 פבר׳ 20181 מרץ 2018

סדרות פרסומים

שםComputational Modelling of Concrete Structures - Proceedings of the conference on Computational Modelling of Concrete and Concrete Structures, EURO-C 2018

כנס

כנסConference on Computational Modelling of Concrete and Concrete Structures, EURO-C 2018
מדינה/אזוראוסטריה
עירBad Hofgastein
תקופה26/02/181/03/18

טביעת אצבע

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