Numerical and experimental investigation of impact performances of cast and stretched polymethyl methacrylate panels

Muhammed C. Tezel; Nursev Erdoğan; Erdem Acar

doi:10.1515/mt-2024-0112

Article

Numerical and experimental investigation of impact performances of cast and stretched polymethyl methacrylate panels

Muhammed C. Tezel
Muhammed C. Tezel received his BSc degree in Mechanical Engineering from TOBB University of Economics and Technology in 2021. He works at Roketsan Missile Industries Inc., and his main fields of interests include mechanical and structural design, structural and explicit dynamic analysis, and design optimization.
, Nursev Erdoğan
Dr. Nursev Erdoğan is Chief Engineer at the department of Functional Coatings and Transparencies Technology Center at Turkish Aerospace Industries, Ankara, Türkiye. Her research and development interests include optical and electromagnetic design and manufacturing of thin film coatings, frequency selective surfaces, and transparencies for aerospace.
and Erdem Acar
Dr. Erdem Acar is a professor in the Mechanical Engineering Department at TOBB University of Economics and Technology, Ankara, Türkiye. His research interests include design optimization, design of automobile and aircraft structures (in particular composite structures), finite element analysis, ballistic simulations, and uncertainty analysis. He is an associate fellow of the American Institute of Aeronautics and Astronautics (AIAA), and he has been serving as a Review Editor for the Journal of Structural and Multidisciplinary Optimization, Springer, since 2017.

Published/Copyright: June 28, 2024

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From the journal Materials Testing Volume 66 Issue 9

Abstract

In this study, numerical and experimental analysis of impact performances of cast polymethyl methacrylate (CPMMA) and stretched polymethyl methacrylate (SPMMA) panels were conducted. First, the material characterization tests (tensile and compression tests as well as split Hopkinson pressure bar tests) of CPMMA and SPMMA materials were performed to determine the Johnson–Cook material model parameters to be used in the finite element models. Next, impact tests were performed for CPMMA and SPMMA panels. The velocity of the impactor before and after penetration was measured and the deformation patterns are recorded. Then, finite element models were generated using LS-DYNA to simulate the impact tests. Finally, the impact performances of the CPMMA and SPMMA panels were compared. It is found that CPMMA has better impact performance than SPMMA for the impact velocities investigated in this study.

Keywords: finite element analysis; impact tests; Johnson–Cook material model; LS-DYNA; polymethyl methacrylate; split Hopkinson pressure bar tests

Corresponding author: Erdem Acar, Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Ankara, Türkiye, E-mail: erdem.acar@gmail.com

Funding source: TÃ¼rkiye Bilimsel ve Teknolojik AraÅŸtÄ±rma Kurumu

Award Identifier / Grant number: 20AG001

Award Identifier / Grant number: 20AG008

Award Identifier / Grant number: 20AG027

About the authors

Muhammed C. Tezel

Muhammed C. Tezel received his BSc degree in Mechanical Engineering from TOBB University of Economics and Technology in 2021. He works at Roketsan Missile Industries Inc., and his main fields of interests include mechanical and structural design, structural and explicit dynamic analysis, and design optimization.

Nursev Erdoğan

Dr. Nursev Erdoğan is Chief Engineer at the department of Functional Coatings and Transparencies Technology Center at Turkish Aerospace Industries, Ankara, Türkiye. Her research and development interests include optical and electromagnetic design and manufacturing of thin film coatings, frequency selective surfaces, and transparencies for aerospace.

Erdem Acar

Dr. Erdem Acar is a professor in the Mechanical Engineering Department at TOBB University of Economics and Technology, Ankara, Türkiye. His research interests include design optimization, design of automobile and aircraft structures (in particular composite structures), finite element analysis, ballistic simulations, and uncertainty analysis. He is an associate fellow of the American Institute of Aeronautics and Astronautics (AIAA), and he has been serving as a Review Editor for the Journal of Structural and Multidisciplinary Optimization, Springer, since 2017.

Acknowledgments

The authors thank Turkish Aerospace Industries for providing the specimens and plates used in the tests.

Research ethics: Not applicable.
Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
Competing interests: The authors state no conflict of interest.
Research funding: This study was supported by the Scientific and Technological Research Council of Türkiye (TÜBİTAK) project no. 20AG027 and 20AG008 under program no. 20AG001.
Data availability: Not applicable.

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Published Online: 2024-06-28

Published in Print: 2024-09-25

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Articles in the same Issue

https://doi.org/10.1515/mt-2024-0112

Keywords for this article

finite element analysis; impact tests; Johnson–Cook material model; LS-DYNA; polymethyl methacrylate; split Hopkinson pressure bar tests