使用有限元分析砖块的行为

Alonso R Zúñiga-Suárez, Berenice C Zúñiga-Torres, Guido Giuliano Gualpa-Guzmán, F. Hernández-Olivares
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引用次数: 0

摘要

砖构件的机械性能取决于其组成部分的特性。同样的特性可以通过实验测试或数值方法获得,这两种方法都能提供出色的结果。因此,这项工作的目的是应用有限元方法分析砖块的行为。为此,建立了一种基于烧制砖块的物理、机械、化学特性和生态特性的方法,并以此校准和分析砖块不同几何截面的机械行为。结果表明,数值模型经过校准后,在简单压缩时获得了 6.91 兆帕的最大应力和变形,在厄瓜多尔标准 INEN 293 中将 G5 型定义为土壤-水泥-石膏混合物中的实心砖;在卡塔马约烧制砖混合物的相同几何截面上,获得了 1.65 兆帕的最大抗弯强度;结论是,应用于不同混合物和几何截面的计算模拟分析结果存在可靠性,其相关性为 0.99。
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Analysis of the Behavior of Bricks Using Finite Elements
The mechanical behavior of brick elements depends on the properties of its components. The same ones that can be obtained through experimental tests or with numerical methods, both methodologies provide excellent results. Consequently, the aims of this work to analyze the behavior of bricks by applying the finite element method. For this, a methodology based on the physical, mechanical, chemical properties of fired bricks and ecological was established, with which the mechanical behavior of different geometric sections of the bricks was calibrated and analyzed. As results, the numerical model was calibrated, obtaining maximum stresses and deformations at simple compression of 6.91 MPa, in the G5 form, defined by the Ecuadorian standard INEN 293 as solid brick in a mixture of soil-cement with gypsum; and the maximum flexural resistance is obtained at 1.65 MPa, in the same geometric section in the mix of Catamayo fired brick; concluding that exists a reliability in the results of the computational simulation analysis applied to different mixtures and geometries whose correlation is 0.99.
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