Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017 |
| Editors | Dermot Brabazon, Inam Ul Ahad, Sumsun Naher |
| Publisher | American Institute of Physics Inc. |
| ISBN (electronic) | 9780735415805 |
| Publication status | Published - 16 Oct 2017 |
| Event | 20th International ESAFORM Conference on Material Forming, ESAFORM 2017 - Dublin, Ireland Duration: 26 Apr 2017 → 28 Apr 2017 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1896 |
| ISSN (Print) | 0094-243X |
| ISSN (electronic) | 1551-7616 |
Abstract
There is a strong trend in the automotive industry to reduce car body-, chassis- and power-train mass in order to lower carbon emissions. More wide spread use of lightweight short fiber reinforced polymer (SFRP) is a promising approach to attain this goal. This poses the challenge of how to integrate new SFRP components by joining them to traditional sheet metal structures. Recently (1), the clinching technique has been successfully applied as a suitable joining method for dissimilar material such as SFRP and Aluminum. The material pairing PA6GF30 and EN AW 5754 is chosen for this purpose due to their common application in industry. The current contribution presents a verification and validation of a finite strain anisotropic material model for SFRP developed in (2) for the FE simulation of the hybrid clinching process. The finite fiber rotation during forming and separation, and thus the change of the preferential material direction, is represented in this model. Plastic deformations in SFRP are considered in this model via an invariant based non-associated plasticity formulation following the multiplicative decomposition approach of the deformation gradient where the stress-free intermediate configuration is introduced. The model allows for six independent characterization curves. The aforementioned material model allows for a detailed simulation of the forming process as well as a simulative prediction of the shear test strength of the produced joint at room temperature.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017. ed. / Dermot Brabazon; Inam Ul Ahad; Sumsun Naher. American Institute of Physics Inc., 2017. 030037 (AIP Conference Proceedings; Vol. 1896).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Finite strain anisotropic elasto-plastic model for the simulation of the forming and testing of metal/short fiber reinforced polymer clinch joints at room temperature
AU - Dean, A.
AU - Rolfes, R.
AU - Behrens, A.
AU - Bouguecha, A.
AU - Hübner, S.
AU - Bonk, C.
AU - Grbic, N.
N1 - Funding information: RR, and AD would like to acknowledge to Dr.-Ing. Benedikt Daum, Dr.-Ing. Shahab Sahraee, Dr.-Ing. Jose Reinoso and Dr.ir. Eelco Jansen for many helpful comments and discussions. The authors acknowledge the German Research Council (DFG) for the financial support through the priority program 1640 joining by plastic deformation with contract No. RO 706/6-2.
PY - 2017/10/16
Y1 - 2017/10/16
N2 - There is a strong trend in the automotive industry to reduce car body-, chassis- and power-train mass in order to lower carbon emissions. More wide spread use of lightweight short fiber reinforced polymer (SFRP) is a promising approach to attain this goal. This poses the challenge of how to integrate new SFRP components by joining them to traditional sheet metal structures. Recently (1), the clinching technique has been successfully applied as a suitable joining method for dissimilar material such as SFRP and Aluminum. The material pairing PA6GF30 and EN AW 5754 is chosen for this purpose due to their common application in industry. The current contribution presents a verification and validation of a finite strain anisotropic material model for SFRP developed in (2) for the FE simulation of the hybrid clinching process. The finite fiber rotation during forming and separation, and thus the change of the preferential material direction, is represented in this model. Plastic deformations in SFRP are considered in this model via an invariant based non-associated plasticity formulation following the multiplicative decomposition approach of the deformation gradient where the stress-free intermediate configuration is introduced. The model allows for six independent characterization curves. The aforementioned material model allows for a detailed simulation of the forming process as well as a simulative prediction of the shear test strength of the produced joint at room temperature.
AB - There is a strong trend in the automotive industry to reduce car body-, chassis- and power-train mass in order to lower carbon emissions. More wide spread use of lightweight short fiber reinforced polymer (SFRP) is a promising approach to attain this goal. This poses the challenge of how to integrate new SFRP components by joining them to traditional sheet metal structures. Recently (1), the clinching technique has been successfully applied as a suitable joining method for dissimilar material such as SFRP and Aluminum. The material pairing PA6GF30 and EN AW 5754 is chosen for this purpose due to their common application in industry. The current contribution presents a verification and validation of a finite strain anisotropic material model for SFRP developed in (2) for the FE simulation of the hybrid clinching process. The finite fiber rotation during forming and separation, and thus the change of the preferential material direction, is represented in this model. Plastic deformations in SFRP are considered in this model via an invariant based non-associated plasticity formulation following the multiplicative decomposition approach of the deformation gradient where the stress-free intermediate configuration is introduced. The model allows for six independent characterization curves. The aforementioned material model allows for a detailed simulation of the forming process as well as a simulative prediction of the shear test strength of the produced joint at room temperature.
UR - http://www.scopus.com/inward/record.url?scp=85037702826&partnerID=8YFLogxK
U2 - 10.1063/1.5008024
DO - 10.1063/1.5008024
M3 - Conference contribution
AN - SCOPUS:85037702826
T3 - AIP Conference Proceedings
BT - Proceedings of the 20th International ESAFORM Conference on Material Forming, ESAFORM 2017
A2 - Brabazon, Dermot
A2 - Ul Ahad, Inam
A2 - Naher, Sumsun
PB - American Institute of Physics Inc.
T2 - 20th International ESAFORM Conference on Material Forming, ESAFORM 2017
Y2 - 26 April 2017 through 28 April 2017
ER -