• Aucun résultat trouvé

Short fiber suspensions

Recirculating Flows Involving Short Fiber Suspensions: Numerical Difficulties and Efficient Advanced Micro-Macro Solvers

Recirculating Flows Involving Short Fiber Suspensions: Numerical Difficulties and Efficient Advanced Micro-Macro Solvers

... a short fiber suspension whose description is accomplished in the kinetic theory framework from the introduction of the Fokker-Planck (FP) equation governing the fiber orientation dis- ...polymer ...

58

Learning the macroscopic flow model of short fiber suspensions from fine-scale simulated data

Learning the macroscopic flow model of short fiber suspensions from fine-scale simulated data

... Abstract: Fiberfiber interaction plays an important role in the evolution of fiber orientation in semi-concentrated ...in short-fiber reinforced composites determines the anisotropic ...

14

Empirical Natural Closure Relation for Short Fiber Suspension Models

Empirical Natural Closure Relation for Short Fiber Suspension Models

... 1.1. Short Fiber Suspensions flow models Numerical modeling of non-Newtonian flows usually involves the coupling between equations of motion, which define an elliptic problem, and the fluid ...

31

Predictin of the thermoelastic properties of an injection molded short-fiber composite

Predictin of the thermoelastic properties of an injection molded short-fiber composite

... molded short-fiber composites, by using techniques of ...the fiber orientation state: in the particular case of injection, where the fibers lie as a majority in the injection plane, we have developed ...

197

Experimental Parameters Identification of Fatigue Damage Model for Short Glass Fiber Reinforced Thermoplastics GFRP

Experimental Parameters Identification of Fatigue Damage Model for Short Glass Fiber Reinforced Thermoplastics GFRP

... Nouri, H., Meraghni, F., Lory, P.: A new thermodynamical fatigue damage model for short glass fibre reinforced thermoplastic composites. In: 16th International Conference on Composite Materials, Kyoto (July 2007) ...

10

Thermal aging effects on overall mechanical behavior of short glass fiber-reinforced polyphenylene sulfide composites

Thermal aging effects on overall mechanical behavior of short glass fiber-reinforced polyphenylene sulfide composites

... very short (about 24 h) for the specimens aged at 200  C while this value sig- ni ficantly increases for the temperatures of 180 and 160  C (240 and above 1,100 h, respectively), and for 140  C, the induc- tion ...

9

Multi-scale viscoelastic damage model of short glass fiber reinforced thermoplastics under fatigue loading

Multi-scale viscoelastic damage model of short glass fiber reinforced thermoplastics under fatigue loading

... glass fiber 30 wt% composite (PA66/GF30) is strongly dependent on several coupled effects: complex damage mechanisms, viscous rheology of the matrix, environmental conditions, injection molding induced ...

10

Multi-scale viscoelastic damage model of short glass fiber reinforced thermoplastics under fatigue loading

Multi-scale viscoelastic damage model of short glass fiber reinforced thermoplastics under fatigue loading

... glass fiber 30 wt% composite (PA66/GF30) is strongly dependent on several coupled effects: complex damage mechanisms, viscous rheology of the matrix, environmental conditions, injection molding induced ...

10

Multiscale fatigue damage characterization in short glass fiber reinforced polyamide-66

Multiscale fatigue damage characterization in short glass fiber reinforced polyamide-66

... To acquire the real tendency of fiber orientation throughout the samples, the tensor representation of fiber orientation state pro- posed by Advani and Tucker [27] is used in this work. This method is widely used to ...

12

Microstructural and experimental analysis of strain rate effect for short glass fiber reinforced polypropylene

Microstructural and experimental analysis of strain rate effect for short glass fiber reinforced polypropylene

... tests at low and high speed loading results is presented and the last part demonstrates the equi bi tensile test at low speed. 2. Micro-structural analysis The material studied here is an injection molded composite ...

11

Fatigue damage in short glass fiber reinforced PA66: Micromechanical modeling and multiscale identification approach

Fatigue damage in short glass fiber reinforced PA66: Micromechanical modeling and multiscale identification approach

... for short glass fiber reinforced thermoplastic composites, namely: ...processes: fiber-matrix interface debonding/coating degradation, matrix microcracking and fiber ...

11

In situ SEM damage mechanisms investigation of short glass fiber reinforced polyamide composite

In situ SEM damage mechanisms investigation of short glass fiber reinforced polyamide composite

... from fiber ends and from the locations where the fibers are close one another ...at fiber end and interface decohesion at the location where fibers are close one another for a load P=56% of  ...

4

On the solution of Flokker-Planck equations in steady recirculating flows involving short fibers suspensions

On the solution of Flokker-Planck equations in steady recirculating flows involving short fibers suspensions

... In this paper, we generalize those numerical strategies to compute the steady solution of the Fokker–Planck equation which governs the evolution of the fiber orientation probability dist[r] ...

30

Micromechanical Fatigue Visco-Damage Model for Short Glass Fiber Reinforced Polyamide-66

Micromechanical Fatigue Visco-Damage Model for Short Glass Fiber Reinforced Polyamide-66

... fibers and coating and is equal to 100. Results are presented in Figure 6. It is shown that matrix and fiber volume fractions are slowly decreasing in early fatigue life. This is due to matrix microcracking and ...

11

Micro-mechanisms of fatigue in short glass fiber reinforced polyamide 66: A multi-scale experimental analysis

Micro-mechanisms of fatigue in short glass fiber reinforced polyamide 66: A multi-scale experimental analysis

... 3.3. Analysis of the fatigue behavior at the microscopic scale 3.3.1 Micro-ductile areas In order to determine the microscopic mechanisms at the origin of the fatigue behavior, SEM observations have been performed on the ...

10

Mechanical and microstructural characterization of flowing weld lines in injection-molded short fiber-reinforced PBT

Mechanical and microstructural characterization of flowing weld lines in injection-molded short fiber-reinforced PBT

... A B S T R A C T The aim of this work is an extensive experimental mechanical and microstructural characterization of flowing weld lines (WLs) in injection-molded short glass fiber-reinforced polybutylenterephthalate ...

12

Imagerie de suspensions pour la mesure des contraintes particulaires dans les suspensions non-browniennes

Imagerie de suspensions pour la mesure des contraintes particulaires dans les suspensions non-browniennes

... [ 1999 ] à un moment où le caractère rhéofluidifiant des suspensions était mal connu et parfois même nié. Ainsi, toute la formulation du SBM fait l’hypothèse que la viscosité d’une suspension est uniquement ...

194

Fatigue damage mechanisms of short fiber reinforced PA66 as observed by in-situ synchrotron X-ray microtomography

Fatigue damage mechanisms of short fiber reinforced PA66 as observed by in-situ synchrotron X-ray microtomography

... Microtomography testing 3D observations A B S T R A C T The understanding of fatigue damage mechanisms of short fiber reinforced thermoplastics are a key issue in order to optimize material processing and propose ...

14

Automatic group-wise whole-brain short association fiber bundle labeling based on clustering and cortical surface information

Automatic group-wise whole-brain short association fiber bundle labeling based on clustering and cortical surface information

... Background The preferred technique to non-invasively study structural brain connections is diffu- sion-weighted magnetic resonance imaging (dMRI), based on the measurement of water molecules movement [ 1 , 2 ]. Diffusion ...

25

Multi‐scale analysis of short glass fiber‐reinforced polypropylene under monotonic and fatigue loading

Multi‐scale analysis of short glass fiber‐reinforced polypropylene under monotonic and fatigue loading

... 2.2.2 | Ultrasonic measurement The ultrasonic wave propagation measurement is used to characterize the orientation and spatial distribution in a short glass reinforced composite plate. Indeed, sev- eral authors ...

15

Show all 1913 documents...

Sujets connexes