Abstract

This paper constitutes a first attempt to explore the influence of porosity on bending static analysis of functionally graded (FG) beams using a refined mixed finite element beam model. The material properties of functionally graded porous beams are estimated using a modified power law distribution with two different types of porosity namely even and uneven distributions. The potential of the proposed model is highlighted via a comparison study. Then, a parametric study is carried out to show the effects of power law index, porosity coefficient, boundary conditions and types of porosity distributions on deflections and stresses of the studied FG beams.

中文翻译：

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功能梯度多孔材料梁的静态弯曲分析

摘要

本文首次尝试使用改进的混合有限元梁模型探索孔隙率对功能梯度 (FG) 梁的弯曲静态分析的影响。功能梯度多孔梁的材料特性是使用修正的幂律分布估计的，该分布具有两种不同类型的孔隙率，即均匀分布和不均匀分布。通过比较研究突出了所提出模型的潜力。然后，进行了参数研究，以显示幂律指数、孔隙率系数、边界条件和孔隙率分布类型对所研究的 FG 梁的挠度和应力的影响。