Induced drilling strains in glass fibre reinforced epoxy composites

被引：16
|
作者：
Nobre, J. P. [1 ,2 ]
Stiffel, J. -H. [2 ]
Nau, A. [3 ]
Outeiro, J. C.
Batista, A. C. [1 ]
Van Paepegem, W. [4 ]
Scholtes, B. [3 ]
机构：
[1] Univ Coimbra, Dept Phys, CEMDRX, P-3030728 Coimbra, Portugal
[2] Univ Coimbra, Dept Mech Engn, P-3030728 Coimbra, Portugal
[3] Univ Kassel, Inst Mat Engn, IfW, D-34109 Kassel, Germany
[4] Univ Ghent, Dept Mat Sci & Engn, B-9052 Ghent, Belgium
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2013年 / 62卷 / 01期
关键词：
Drilling; Composite; Residual stress; RESIDUAL-STRESS; ORTHOTROPIC MATERIALS;
D O I：
10.1016/j.cirp.2013.03.089
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Residual strains induced by drilling of glass-fibre reinforced polymers (GFRPs) were determined using a hybrid experimental-numerical methodology. Experimentally, a set of GFRP specimens were drilled under well-defined tensile (calibration) stresses, using an especially designed tensile test device. To remove the effect of the initial residual stresses, this methodology considers differential stress values instead of absolute ones. Numerically, the experimental procedure was simulated using the finite element method. The induced drilling strains were determined by comparing the experimental measured strains with those calculated numerically. Clear differences between the selected drilling operations could be observed and evaluated. (C) 2013 CIRP.
引用
收藏
页码：87 / 90
页数：4
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