Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline

Journals

remove_circle_outline

Article Types

Countries / Regions

Search Results (2)

Search Parameters:
Keywords = pARD-RSC

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
10 pages, 3898 KiB  
Article
Significance of Model Parameter Variations in the pARD-RSC Model
by Armin Kech, Susanne Kugler and Tim Osswald
J. Compos. Sci. 2020, 4(3), 109; https://doi.org/10.3390/jcs4030109 - 7 Aug 2020
Cited by 3 | Viewed by 2105
Abstract
This study aims to evaluate how fiber orientation results are dependent on fluctuations in input parameters, such as the average fiber length, fiber volume content, and initial alignment of fibers. The range of parameters is restricted to deviations within one specific short fiber [...] Read more.
This study aims to evaluate how fiber orientation results are dependent on fluctuations in input parameters, such as the average fiber length, fiber volume content, and initial alignment of fibers. The range of parameters is restricted to deviations within one specific short fiber reinforced thermoplastic and is not set up to investigate the differences between materials. The evaluation was conducted by a virtual shear cell based on a mechanistic modeling approach. The fiber orientation prediction model discussed is the pARD-RSC (principal anisotropic rotary diffusion-reduced strain closure) model implemented as a user routine in AUTODESK MOLDFLOW INSIGHT® (AMI®). The material investigated was discontinuous short glass fiber reinforced PBT (polybutylene-terephthalate), which is often used for housings in various industries. It is shown that variation in the input parameters, although having an influence on the fiber orientation model parameters, only affects the final orientation moderately. Full article
(This article belongs to the Special Issue Discontinuous Fiber Composites, Volume II)
Show Figures

Figure 1

21 pages, 1221 KiB  
Review
Fiber Orientation Predictions—A Review of Existing Models
by Susanne Katrin Kugler, Armin Kech, Camilo Cruz and Tim Osswald
J. Compos. Sci. 2020, 4(2), 69; https://doi.org/10.3390/jcs4020069 - 8 Jun 2020
Cited by 56 | Viewed by 7275
Abstract
Fiber reinforced polymers are key materials across different industries. The manufacturing processes of those materials have typically strong impact on their final microstructure, which at the same time controls the mechanical performance of the part. A reliable virtual engineering design of fiber-reinforced polymers [...] Read more.
Fiber reinforced polymers are key materials across different industries. The manufacturing processes of those materials have typically strong impact on their final microstructure, which at the same time controls the mechanical performance of the part. A reliable virtual engineering design of fiber-reinforced polymers requires therefore considering the simulation of the process-induced microstructure. One relevant microstructure descriptor in fiber-reinforced polymers is the fiber orientation. This work focuses on the modeling of the fiber orientation phenomenon and presents a historical review of the different modelling approaches. In this context, the article describes different macroscopic fiber orientation models such as the Folgar-Tucker, nematic, reduced strain closure (RSC), retarding principal rate (RPR), anisotropic rotary diffusion (ARD), principal anisotropic rotary diffusion (pARD), and Moldflow rotary diffusion (MRD) model. We discuss briefly about closure approximations, which are a common mathematical element of those macroscopic fiber orientation models. In the last section, we introduce some micro-scale numerical methods for simulating the fiber orientation phenomenon, such as the discrete element method (DEM), the smoothed particle hydrodynamics (SPH) method and the moving particle semi-implicit (MPS) method. Full article
(This article belongs to the Special Issue Discontinuous Fiber Composites, Volume II)
Show Figures

Figure 1

Back to TopTop