Virtual process chain of sheet molding compound: Development, validation and perspectives

被引：78

作者：

Goerthofer, Johannes ^{[1
]}

Meyer, Nils ^{[2
]}

Pallicity, Tarkes Dora ^{[1
]}

Schoettl, Ludwig ^{[3
]}

Trauth, Anna ^{[3
]}

Schemmann, Malte ^{[1
]}

Hohberg, Martin ^{[2
,7
]}

Pinter, Pascal ^{[3
]}

Elsner, Peter ^{[3
,4
]}

Henning, Frank ^{[2
,4
]}

Hrymak, Andrew ^{[5
]}

Seelig, Thomas ^{[6
]}

Weidenmann, Kay ^{[3
]}

Kaerger, Luise ^{[2
]}

Boehlke, Thomas ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Engn Mech, Karlsruhe, Germany

[2] Karlsruhe Inst Technol, Inst Vehicle Syst Technol, Karlsruhe, Germany

[3] Karlsruhe Inst Technol, Inst Appl Mat Mat Sci & Engn, Karlsruhe, Germany

[4] Fraunhofer Inst Chem Technol, Pfinztal, Germany

[5] Western Univ UWO, Dept Chem & Biochem Engn, London, England

[6] Karlsruhe Inst Technol, Dept Civil Engn Geo & Environm Sci, Inst Mech, Karlsruhe, Germany

[7] Virtual Composite Solut, SIMUTENCE, Karlsruhe, Germany

来源：

COMPOSITES PART B-ENGINEERING | 2019年 / 169卷

关键词：

Discontinuous reinforcement; Compression molding; Damage mechanics; Computational modeling; REINFORCED POLYMER COMPOSITES; FIBER ORIENTATION; MICROMECHANICAL DAMAGE; ANISOTROPIC DAMAGE; CAE CHAIN; MODEL; SMC; MATRIX; FLOW; PREDICTION;

D O I：

10.1016/j.compositesb.2019.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A virtual process chain for sheet molding compound (SMC) composites is established and validated by means of experimental investigations on a demonstrator structure. The flow in the compression molding step is simulated via a Coupled-Eulerian-Lagrangian approach using an anisotropic non-Newtonian fluid flow model. Evolution of the fiber orientation distribution (FOD) is described by Jeffery's equation. The predicted FOD is mapped to structural simulations employing a neutral data format. A mean-field anisotropic damage model is used to predict the damage evolution in the demonstrator. Simulated FOD at the end of the compression molding is validated by computer tomography. Structural simulations are validated by means of a cyclic four-point bending test on the demonstrator. The predicted results show increased accuracy with the experiments by transferring FOD data within the virtual process chain. Critical points of high damage concentrations leading to failure agree with the experimental observations.

引用

页码：133 / 147

页数：15

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