Short Fiber Filled Injection Molded Workflow with Multiscale Simulation Siemens

Format:

Book

Conference/Event

Author/Creator:

Cornwell, Hayden, author.

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

In the automotive industry, injection molded components are often used due to their ability to create complex shapes and increase production volume. In order to strengthen these parts, milled or chopped fibers will often be mixed into the matrix to improve the performance of the polymer. However, the complexity of this material is also increased leading to more influence from processing parameters and material variability. Along with inclusion aspect ratio and volume fraction (VF), an important attribute of this material that affects the part stiffness and strength is fiber orientation due to the injection molding process. In this paper, a workflow is presented to predict the mechanical properties of an injection molded part using only injection molding simulation and constituent material properties to build microstructural finite element models (FEM). In collaboration with AGY, experimental tensile tests of injection molded samples of varying VFs of S-2 Glass® and Carbon fibers are used to validate this multiscale approach. First, the fiber orientation results from the injection molding simulation are used to create microstructures for validating the modulus of each material formulation. Due to the rather consistent fiber orientation in the samples, single scale microstructural tests are performed using the calibrated matrix and fiber properties to predict the non-linear stress-strain curve of the materials. The results of this study demonstrate high levels of accuracy for both the stiffness and non-linear response of short fiber reinforced polymers (SFRP) without the need to calibrate the composite material properties

Notes:

Vendor supplied data

Publisher Number:

2021-01-0351

Access Restriction:

Restricted for use by site license