Induced drilling strains in glass fibre reinforced epoxy composites
Article dans une revue avec comité de lecture
JournalCIRP Annals - Manufacturing Technology
Residual strains induced by drilling of glass-fibre reinforced polymers (GFRP) 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.
Files in this item
- LABOMAP_CIRP-ANNALS_2013_Outei ...
Showing items related by title, author, creator and subject.
Evaluating Residual Stresses Induced by Drilling of Ti-6Al-4V Alloy by Using an Experimental-Numerical Methodology Communication avec acteNOBRE, Joao Paulo; OUTEIRO, José (Elsevier, 2015)An experimental-numerical methodology is applied to evaluate the residual stresses induced by drilling of Ti-6Al-4V alloy. The influence of ultra-high cutting speeds on the residual stress distribution is analysed. These ...
Machining and heat treatment as post-processing strategies for Ni-superalloys structures fabricated using direct energy deposition Article dans une revue avec comité de lectureCARERI, Francesco; IMBROGNO, Stano; UMBRELLO, Domenico; ATTALLAH, Moataz M.; OUTEIRO, José; BATISTA, António C. (Elsevier, 2021)The aim of this study is to determine the most suitable post-processing routines to enhance the surface integrity of components produced with Inconel 718 superalloy by additive manufacturing. The components were fabricated ...
Article dans une revue avec comité de lectureOUTEIRO, José; BATISTA, Antonio; MARQUES, M.J. (Trans Tech Publications, 2014)The major challenge of the Mg alloys has been their unsatisfactory corrosion resistance, which can be enhanced by improving the surface integrity. Cryogenic machining, where liquid nitrogen was used during machining, has ...
Process Mechanics and Surface Integrity Induced by Dry and Cryogenic Machining of AZ31B-O Magnesium Alloy Communication avec acteOUTEIRO, José; ROSSI, Frédéric; FROMENTIN, Guillaume; POULACHON, Gérard; GERMAIN, Guénaël; BATISTA, Antonio (Elsevier, 2013)The corrosion resistance of magnesium alloys depends mainly on its surface integrity. Previous experimental studies have shown that machining can induces small (nano-scale) grain size, compressive residual stresses and ...
Residual Stresses in Machining of AISI 52100 Steel under Dry and Cryogenic Conditions: A Brief Summary Communication avec acteCARUSO, Serafino; OUTEIRO, José; UMBRELLO, Domenico; BATISTA, Antonio (Trans Tech Publications, 2014)Residual stress is one of the most important surface integrity parameter that can significantly affect the service performance of a mechanical component, such as: contact fatigue, corrosion resistance and part distortion. ...