Analytical method for determining maximum shear stresses in laminated composite metal bars subjected to torsion

被引:0
|
作者
Acosta-Flores, Mario [1 ]
Lilia Erana-Diaz, Marta [1 ]
Jimenez-Lopez, Eusebio [2 ]
Carlos Garcia, Juan [3 ]
Jose Delfin-Vazquez, Juan [4 ]
Lucero-Velazquez, Baldomero [4 ]
机构
[1] Autonomous Univ Morelos State, Fac Chem Sci, Av Univ 1001, Cuernavaca 62209, Morelos, Mexico
[2] Technol Univ South Sonora ULSA Northwest IIMM, Km 14 S-N,8&9 Col Nuevo Mexico, Cajeme 850950, Sonora, Mexico
[3] Autonomous Univ Morelos State, Res Ctr Engn & Appl Sci, Av Univ 1001, Cuernavaca 62209, Morelos, Mexico
[4] Cajeme Higher Technol Inst, Mech Engn Div, Int Highway Nogales Km 2, Obregon 85000, Sonora, Mexico
关键词
Shear stresses in the torsion problems of laminated composite metal bars; Laminated composites; Torsion problems; Shear stresses; Torsion of laminated composites; ELEMENT-LESS METHOD; BEAMS; FLEXURE;
D O I
10.1007/s12206-021-0625-x
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this study, a novel method for determining stresses in the torsion problems of laminated composite trimetallic and bimetallic bars was developed and evaluated via experimental and numerical analyses. The objective of this method is to transform a real transversal section of a model for a laminated composite bar into a hypothetical virtual section that is homogenous and isotropic. An analogy with the transformed-section method for solving composite beams under flexion was conducted. The shear stresses (maximum on external surfaces and interfaces) in laminated composite bars were undergoing torsion. Isotropic symmetric and asymmetric laminated composite bars were examined analytically, and the results of their respective experimental and numerical tests were analyzed. The proposed method exhibits differences between 2% and 12% compared with the experimental results and between 2% and 10% compared with the results obtained using the finite element method.
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页码:3019 / 3031
页数:13
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