Numerical simulation of the drilling process on carbon/epoxy composite laminates

Durão, Luís Miguel P.; Moura, M.F.S.F. de; Marques, A.T.

doi:10.1016/j.compositesa.2005.08.013

Cited by 82 publications

(41 citation statements)

References 22 publications

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“…Common assumption in simplified models considers the drill acting like a punch that pierces the laminate, see for instance [17,18]. This was the approach used by Durao et al [19] and Singn et al [20] when studying GFRP drilling; they showed the influence of the drill point angle in the induced damage.…”

Section: Introductionmentioning

confidence: 99%

Numerical prediction of delamination in CFRP drilling

Feito

López-Puente

Santiuste

et al. 2014

Composite Structures

135

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CFRPs Drilling Delamination ModelingDelamination is one of the undesired effects of machining using non appropriate cutting parameters or worn drill. Finite element modeling of drilling of Carbon Fiber Reinforced Polymer (CFRP) composites is an interesting tool for damage prediction. Recently, complete modeling of the process including the rotatory movement of the drill, penetration in the composite plate and element erosion has been developed in the scientific literature. Computational cost of these complex models is a great disadvantage when comparing them with simplified models that consider the drill acting like a punch that pierces the laminate. In this paper both complete and simplified models were developed and compared in terms of delamination prediction. The simplified model, presenting reduced computational cost, slightly overestimates the delamination factor when compared with the complex model. The influence on delamination of thrust force, clamping area at the bottom surface of the laminate and the stacking sequence is studied using the simplified model.

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Section: Introductionmentioning

confidence: 99%

Numerical prediction of delamination in CFRP drilling

Feito

López-Puente

Santiuste

et al. 2014

Composite Structures

135

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“…On the other hand, only unidirectional laminate can be modeled, while quasi isotropic laminates are com monly used in structural applications due to their higher perfor mance. Simplified quasi static three dimensional (3D) models of drilling, which consider the drill as a punch, for delamination pre diction, are also found in scientific literature (see for instance [10]). …”

Section: Introductionmentioning

confidence: 99%

Out-of-plane failure mechanisms in LFRP composite cutting

Santiuste

Miguélez

Soldani

2011

Composite Structures

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Damage Out-of-plane failure LFRP (Long Fiber Reinforced) composites are widely used in structural components for high responsibility applications in different industrial sectors. Composite components are manufactured near final shape, however several machining operations are commonly required to achieve dimensional and assembly specifications. Machining should be carefully carried out in order to avoid workpiece damage. Despite of the interest of numerical modeling to analyze in detail the phenomena involved during composite cut ting, there are only few works in the scientific literature dealing with this topic even in the simple case of orthogonal cutting. Out of plane failure can be accounted only if three dimensional modeling is per formed. However up to date numerical analysis of cutting found in scientific literature was focused in two dimensional approach. In this paper (2D) and three dimensional (3D) numerical modeling of orthog onal cutting of carbon LFRP composite are presented. The aim of the paper is to analyze the complex aspects involved during cutting, including out of plane failure.

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“…Experimental tests and numerical simulations were performed. The numerical approach is based on a three-dimensional analysis including a cohesive mixed-mode (I+I+III) damage model implemented via interface finite elements [22]. The objective of the numerical analysis is to understand the different damage evolutions between the three studied cases.…”

Section: Introductionmentioning

confidence: 99%