A discrete element method for the simulation of CFRP cutting

Iliescu, Daniel; Géhin, Daniel; Iordanoff, Ivan; Girot, F.; Gutiérrez, María Elena

doi:10.1016/j.compscitech.2009.09.007

Cited by 143 publications

(92 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Machining of metals have been studied using some meshfree methods such as: Material Point Method [22], finite pointset method [23] and smoothed particle hydrodynamics [24][25][26][27][28]. Iliescu et al [29], developed a model for machining composites utilising the discrete element method. The workpiece was modelled as discrete particles with connections.…”

Section: Introductionmentioning

confidence: 99%

Meshfree formulation for modelling of orthogonal cutting of composites

Kahwash

Shyha

Maheri

2017

Composite Structures

View full text Add to dashboard Cite

Please cite this article as: Kahwash, F., Shyha, I., Maheri, A., Meshfree formulation for modelling of orthogonal cutting of composites, Composite Structures (2017), doi: http://dx.doi.org/10. 1016/j.compstruct.2017.01.021 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Simulations show that the meshfree model is capable of predicting cutting forces as a function of the fibre orientation. Sensitivity analysis is conducted to investigate the effect of important meshfree parameters such as the domain of influence and weight function on forces. One of the strongest advantages of the proposed model is the simple and automatic set up process, as meshing for domain discretisation is not required.

show abstract

Section: Introductionmentioning

confidence: 99%

Meshfree formulation for modelling of orthogonal cutting of composites

Kahwash

Shyha

Maheri

2017

Composite Structures

View full text Add to dashboard Cite

show abstract

“…The same model validated through the comparison with experimental results provided in recent works dealing with orthogonal cutting of the carbon-epoxy LFRP composite T300/914 [48] was applied to the simulation of cortical bone cutting. Predicted cutting forces and temperature were compared with the values presented in Alam et al [11] as described in next section.…”

Section: Elastic Properties Ultimate Stressmentioning

confidence: 99%

The influence of anisotropy in numerical modeling of orthogonal cutting of cortical bone

Santiuste

Rodríguez-Millán

Giner

et al. 2014

Composite Structures

View full text Add to dashboard Cite

Cutting operations in bone are involved in surgical treatments in orthopaedics and traumatology.The importance of guaranteeing the absence of damage in the living workpiece is equivalent in this case to ensuring surface quality. The knowledge in this field is really far from the expertise in industrial cutting of mechanical components. Modeling of bone cutting is a challenge strongly dependent on the accurate modeling of mechanical behaviour of the bone. This paper focuses on modeling of orthogonal cutting of cortical bone. The intrinsic anisotropic nature of the cortical bone that makes it comparable to a compos-ite material is taken into account. The influence of anisotropy is analysed comparing this behaviour with an isotropic approach. It is shown that both chip morphology and temperature are affected by the anisot-ropy of the cortical bone that acts as a workpiece.

show abstract

“…The model was validated through the comparison with experimental results provided in recent works 6,33 dealing with orthogonal cutting of the carbon-epoxy LFRP composite T300/914. The values of experimental cutting forces (in N/mm) are obtained as the ratio between the average level of the cutting forces and the laminate thickness.…”

Section: Numerical Modelmentioning

confidence: 99%

“…Mahdi and Zhang 5 carried out a 2D analysis reproducing an equivalent homogeneous material predicting cutting forces of LFRP composite depending on the fiber orientation. A new approach of 2D modeling of orthogonal cutting of carbon LFRP using discrete element method (DEM) has been presented in Reference [6]. The observation of the chip formation using a high-speed video camera made possible to validate qualitatively the results of numerical simulation by discrete elements.…”

Section: Introductionmentioning

confidence: 99%

Delamination prediction in orthogonal machining of carbon long fiber-reinforced polymer composites

Santiuste

Olmedo

Soldani

et al. 2012

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

Machining processes of composites are common operations in industry involving elevated risk of damage generation in the workpiece. Long fiber reinforced polymer composites used in high-responsibility applications require safety machining operations guaranteeing workpiece integrity. Modeling techniques would help in the improvement of machining processes definition; however, they are still poorly developed for composites. The aim of this paper is advancing in the prediction of damage mechanisms involved during cutting, including out-of-plane failure causing delamination. Only few works have focused on three-dimensional simulation of cutting; however, this approach is required for accurate reproduction of the complex geometries of tool and workpiece during cutting processes. On the other hand, cohesive interactions have proved its ability to simulate out-of-plane failure of composites under dynamic loads, as impact events. However, this interlaminar interaction has not been used up to date to model out-of-plane failure induced during chip removal. In this paper, both a classical damage model and cohesive interactions are implemented in a three-dimensional model based on finite elements, in order to analyze intralaminar and interlaminar damage generation in the simplified case of orthogonal cutting of carbon LFRP composite. More realistic damage predictions using cohesive interactions were observed. The strong influence of the stacking sequence on interlaminar damage has been demonstrated.

show abstract

A discrete element method for the simulation of CFRP cutting

Cited by 143 publications

References 12 publications

Meshfree formulation for modelling of orthogonal cutting of composites

Meshfree formulation for modelling of orthogonal cutting of composites

The influence of anisotropy in numerical modeling of orthogonal cutting of cortical bone

Delamination prediction in orthogonal machining of carbon long fiber-reinforced polymer composites

Contact Info

Product

Resources

About