Modelling of chip separation in machining unidirectional FRP composites by stiffness degradation concept

Lasri, Larbi; Nouari, Mohammed; Mansori, Mohamed El

doi:10.1016/j.compscitech.2009.01.004

Cited by 127 publications

(139 citation statements)

References 24 publications

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“…The concept of degrading the stiffness of the composite in certain directions has been used in study composites failure including machining of composites [11,15,17]. In this study, the stiffness degradation values were adopted from [47] and are shown in Table 2.…”

Section: Stiffness Degradationmentioning

confidence: 99%

“…The micromechanical approach models fibres and matrix separately. Most of the studies utilising macromechanical approach used linear elastic material model [8,9,11,13]. However, Zenia [20,21] used a combined elasto-plastic model with isotropic hardening and without plastic flow in the principle fibre direction.…”

Section: Introductionmentioning

confidence: 99%

“…Material failure is governed by composite failure criteria. Different studies used various failure criteria, such as Tsai-Hill [8,10,14], maximum stress [10,11], Hashin [11,15,17]. Some studies [8][9][10] combined two failure mechanisms, primary failure for the onset of chip formation and a secondary failure for the progressive failure and completion of chip formation.…”

Section: Introductionmentioning

confidence: 99%

“…Dynamic studies usually utilise explicit solving techniques such as the central difference method. Studies that used the steady state approach include [8][9][10][11][12][13]. Some studies that adopted the transient approach include [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Some studies [8][9][10] combined two failure mechanisms, primary failure for the onset of chip formation and a secondary failure for the progressive failure and completion of chip formation. The progressive failure was modelled through stiffness degradation concept [11] or continuum damage mechanics approach [15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Meshfree formulation for modelling of orthogonal cutting of composites

Kahwash

Shyha

Maheri

2017

Composite Structures

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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.

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Section: Stiffness Degradationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Meshfree formulation for modelling of orthogonal cutting of composites

Kahwash

Shyha

Maheri

2017

Composite Structures

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Processing and Mechanical Properties of the Workpiece in Machining of Long‐Fiber‐Reinforced Composites

Miguélez

Santiuste

Soldani

et al. 2012

Wiley Encyclopedia of Composites

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This work focuses on the analysis of the influence of mechanical properties of long fiber reinforced polymeric composite (LFRP) on machining operations. Experimental works covering main aspects of the machining process, such as tool selection, wear evolution, and cutting parameters were briefly reviewed. It can be concluded from this analysis that the composite properties strongly influence machining process. The selection of the tool, both cutting material and geometry, should be done depending on the type of composite family (carbon, glass, or aramid). This aspect also influences the evolution and mechanism of tool wear. On the other hand, numerical modeling is a useful tool to get a better knowledge of machining operations. Mechanisms of chip generation, cutting forces, and damage can be evaluated depending on the workpiece properties. Finite element approach involves modeling the mechanical behavior of the composite, material properties influence damage generation through the models formulation.

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Study on cutting force and induced thermal damage of carbon fiber reinforced polymer composites using microscopic simulation modeling

Xiao

Wang

Su³

et al. 2022

Polymer Composites

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A three-dimensional (3D) microscopic finite element (FE) cutting model was developed with the thermo-mechanical coupling for carbon fiber reinforced polymer (CFRP) composites in this article. The model predictions of cutting force, machined surface, and cutting temperature at various fiber orientations were obtained and compared with the experimental data. It was shown that the 3D microscopic cutting model can predict the cutting force, cutting temperature, and subsurface damage precisely. The behavior of cutting force has presented an obviously cyclical variation characteristics at the fiber orientations of 0 , 45 , and 90 , and different chip morphologies were obtained correspondingly. The temperature fields of machined surface were studied at the four different fiber orientations, in which the maximum residual temperature on the machined surface occurs at 90 . The heat-induced resin coating and resin ridges on the machined surface were obviously observed at the fiber orientations of 45 and 135 . The trend curve of cutting temperature is more similar with that of thrust force by comparing with cutting force, which meaning, unlike the isotropic metal materials, the thrust force has the direct effect on the heat generation. In addition, the comparison of depth of thermal and mechanical subsurface damage was also performed, it was showed that the depths of thermal subsurface damage are close to that of mechanical subsurface damage in the range of 0 -45 , and the thermal subsurface damage decrease while the mechanical subsurface damage increases with the increase of the fiber orientation range from 90 to 180 .

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Modelling of chip separation in machining unidirectional FRP composites by stiffness degradation concept

Cited by 127 publications

References 24 publications

Meshfree formulation for modelling of orthogonal cutting of composites

Meshfree formulation for modelling of orthogonal cutting of composites

Processing and Mechanical Properties of the Workpiece in Machining of Long‐Fiber‐Reinforced Composites

Study on cutting force and induced thermal damage of carbon fiber reinforced polymer composites using microscopic simulation modeling

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