不同水灰比下胶凝体代表性体积元的建模

IF 1 Q4 MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
M. Shahzamanian, W. Basirun
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引用次数: 2

摘要

本研究使用有限元法(FEM)测量了CEMHYD3D生成的具有不同水灰比(W/Cs)的基于微观结构的水泥基代表性体积单元(RVE)的力学性能。研究和讨论了在计算上显著改变弹性特性的有限元边界条件效应。应用ABAQUS中的各种边界条件,并将其与用变分渐近法求解单元均匀化(VAMUCH)得到的结果进行了比较。此比较是使用ANSYS进行的。本研究旨在详细分析和确定不同边界条件对预测不同W/C水泥基RVE弹性性能的影响,并确定这方面的最佳方法。结果表明,杨氏模量、剪切模量和体积模量随着W/C的增加而降低,ABAQUS中的边界条件会影响结果,特别是体积模量和泊松比。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling of Cementitious Representative Volume Element with Various Water–Cement Ratios
This study uses the finite element method (FEM) to measure the mechanical properties of microstructure-based cementitious representative volume elements (RVEs) with various water–cement ratios (W/Cs) generated by CEMHYD3D. The finite element boundary condition effects that significantly and computationally change the elastic properties are studied and discussed. Various boundary conditions in ABAQUS are applied and compared with the results obtained using the variational asymptotic method for unit cell homogenization (VAMUCH). This comparison is conducted using ANSYS. This study aims to analyze and determine the effect of different boundary conditions in detail on the prediction of the elastic properties of cementitious RVE with various W/Cs and identify the best approach in this regard. Results show that Young’s, shear, and bulk moduli decrease with the increase in W/C and the boundary conditions in ABAQUS influence the outcomes, particularly on bulk modulus and Poisson’s ratio.
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来源期刊
Journal of Multiscale Modelling
Journal of Multiscale Modelling MATHEMATICS, INTERDISCIPLINARY APPLICATIONS-
CiteScore
2.70
自引率
0.00%
发文量
9
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