On torsion of random composite beams

被引：56

作者：

Barretta, Raffaele ^{[1
]}

Luciano, Raimondo ^{[2
]}

Willis, John R. ^{[3
]}

机构：

[1] Univ Naples Federico II, Dept Struct Engn & Architecture, I-80125 Naples, Italy

[2] Univ Cassino & Southern Lazio, Dept Civil & Mech Engn, I-03043 Cassino, FR, Italy

[3] Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Math Sci, Cambridge CB3 OWA, England

来源：

COMPOSITE STRUCTURES | 2015年 / 132卷

关键词：

Elasticity; Random beams; Micro-mechanics; Finite element analysis; NONLOCAL EFFECTIVE RELATIONS; DEPENDENT BODY FORCE; SAINT-VENANT BEAM; STRAIN FIELDS; FE ANALYSIS; BEHAVIOR; STRESS; BODIES;

D O I：

10.1016/j.compstruct.2015.06.069

中图分类号：

O3 [力学];

学科分类号：

070301 [无机化学];

摘要：

Elastic equilibrium of two-phase random composite beams under torsion, with simply and multiply connected cross-sections, is investigated. The analysis is carried out in order to assess the boundary layer effect exhibited by the shear stress field, expressed in terms of the torsional warping function, near the cross-section boundary. The boundary value problem governing the warping function is formulated in variational terms and solved by a FEM analysis. Standard methods of micromechanics are adopted in order to evaluate the eigenstress fields describing cross-sectional elastic inhomogeneities. The shear stress distribution in a beam with equilateral triangular cross-section is numerically evaluated for different microstructures characterizing the elastic phases of the composite material. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：915 / 922

页数：8

共 23 条

[1]

Some closed-form solutions of functionally graded beams undergoing nonuniform torsion [J].