Numerical investigation of the effects of drill geometry on drilling induced delamination of carbon fiber reinforced composites

Isbilir, Ozden; Ghassemieh, Elaheh

doi:10.1016/j.compstruct.2013.04.026

Cited by 148 publications

(55 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They recommended the use of special drill designs where the thrust force was directed towards the drill periphery instead of being concentrated at the center. In a recent study, Isbilir and Ghassemieh [15] used finite element modeling of drilling including real drill geometry to study delamination. The advantages of step drills over twist drills were shown based on finite element simulations.…”

Section: Introductionmentioning

confidence: 99%

Tool geometry based prediction of critical thrust force while drilling carbon fiber reinforced polymers

Bahtiyar

2015

Adv. Manuf.

View full text Add to dashboard Cite

Carbon fiber reinforced polymers (CFRPs) are known to be difficult to cut due to the abrasive nature of carbon fibers and the low thermal conductivity of the polymer matrix. Polycrystalline diamond (PCD) drills are commonly employed in CFRP drilling to satisfy hole quality conditions with an acceptable tool life. Drill geometry is known to be influential on the hole quality and productivity of the process. Considering the variety of CFRP laminates and available PCD drills on the market, selecting the suitable drill design and process parameters for the CFRP material being machined is usually performed through trial and error. In this study, machining performances of four different PCD drills are investigated. A mechanistic model of drilling is used to reveal trade-offs in drill designs and it is shown that it can be used to select suitable feed rate for a given CFRP drilling process.

show abstract

Section: Introductionmentioning

confidence: 99%

Tool geometry based prediction of critical thrust force while drilling carbon fiber reinforced polymers

Bahtiyar

2015

Adv. Manuf.

View full text Add to dashboard Cite

show abstract

“…El bisel transversal tiene una gran influencia sobre las fuerzas de corte y la calidad de los agujeros (Pirtini y Lazoglu, 2005). En una operación de taladrado el bisel transversal arranca material mediante un proceso de indentación (Isbilir y Ghassemieh, 2013), con presencia de un ángulo de desprendimiento altamente negativo.…”

Section: Introductionunclassified

Modelo de Shaw y Oxford aplicado a un Proceso de Taladrado que Utiliza Brocas Helicoidales con Geometría Innovada y Ausencia de Bisel

Leal-Muñoz

Guzmán

2017

Inf. tecnol.

View full text Add to dashboard Cite

ResumenEn este artículo se presenta una forma corregida del modelo de Shaw y Oxford para brocas con geometría mejorada y ausencia de bisel transversal. Se ha realizado un ajuste de las expresiones que conforman el modelo y se han determinado los parámetros experimentales para estimar la fuerza de avance y el par de taladrado en aluminio Al-2011. Los resultados obtenidos mediante el modelo corregido se han comparado con valores estimados mediante el modelo de la presión específica de corte. Finalmente, se muestra que el modelo de Shaw y Oxford puede ser aplicado en brocas con geometría mejorada mediante el ajuste del parámetro asociado al bisel transversal. Palabras clave: presión específica de corte; mecanizado; fuerza de corte; taladrado; Shaw y Oxford The Shaw and Oxford Model Applied to a Process of Drilling that uses Twist Drills with Innovated Geometry and without Chisel AbstractThis article presents a corrected form of the Shaw and Oxford model for drills with improved geometry and absence of the edge chisel. Adjustments of the expressions that compose the model have been made, and also the experimental parameters have been determined in order to estimate the thrust force and the torque of the drilling in aluminum Al-2011. The results obtained through the corrected model, have been compared with estimated values through the specific cutting pressure model. Finally, it is proved that the Shaw and Oxford model can be applied to drills with improved geometry through the adjustment of the parameter associated to the edge chisel.

show abstract

“…Hence, sandwich plate systems (SPSs) [18][19][20][21][22] with lower density and numerous other advantages, such as enhanced blast and ballistic resistance, has been extensively employed for aerospace and marine applications. Although SPH approaches can be applied to problems with severe distortions, they are generally not as good as the finite-element method (FEM) [23][24][25][26][27] -a mature scheme with a high efficiency, suitable for structural applications. Therefore, alongside the SPH approach, the FEM is applied here to model steel/SPS structures and analyse their damage response, considerable effort was dedicated to coupled SPH-FEM methods [28][29][30][31][32][33][34][35][36][37][38] by various researchers in the past years.…”

Section: Introductionmentioning

confidence: 99%

SPH-FEM simulation of shaped-charge jet penetration into double hull: A comparison study for steel and SPS

Zhang

Wang

Silberschmidt

et al. 2016

Composite Structures

View full text Add to dashboard Cite

Numerical investigation of the effects of drill geometry on drilling induced delamination of carbon fiber reinforced composites

Cited by 148 publications

References 53 publications

Tool geometry based prediction of critical thrust force while drilling carbon fiber reinforced polymers

Tool geometry based prediction of critical thrust force while drilling carbon fiber reinforced polymers

Modelo de Shaw y Oxford aplicado a un Proceso de Taladrado que Utiliza Brocas Helicoidales con Geometría Innovada y Ausencia de Bisel

SPH-FEM simulation of shaped-charge jet penetration into double hull: A comparison study for steel and SPS

Contact Info

Product

Resources

About