About the Authors
- Hongyan Yuan
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Affiliation Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Changjin Huang
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Affiliation Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Sulin Zhang
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* E-mail: suz10@psu.edu
Affiliation Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SZ. Performed the experiments: HY CH SZ. Analyzed the data: HY CH SZ. Wrote the paper: HY CH SZ.