@inproceedings{9049d68e52e94097bf21c26d70b2a356,
title = "Study on Alleviating L{\"u}ders Deformation with Layered Structure Based on DIC and FEM",
abstract = "L{\"u}ders deformation is a persistent challenge in metallic material science and widely observed across various materials. L{\"u}ders band manifests as local plastic instability and hinders engineering applications. In recent years, heterogeneous structures have been shown to suppress local strain concentration and can help mitigate L{\"u}ders deformation. This study investigates the impact of layered structures on L{\"u}ders deformation in bi-layered steel/aluminum sheet materials with varying thickness ratios. Utilizing digital image correlation (DIC) and finite element (FE) modeling, the study finds that the inclusion of an aluminum layer reduces the magnitude of L{\"u}ders deformation of the steel/aluminum sheet. This leads to decreases in both upper and lower yield strengths and in L{\"u}ders strain as the thickness ratio decreases. FE analysis reveals that L{\"u}ders strain is primarily influenced by the product of stress drop and the local stress peak width ratio at the L{\"u}ders front. This study offers valuable insights into alleviating L{\"u}ders deformation through heterogeneous structural design.",
keywords = "digital image correlation, finite element simulation, layer structure, L{\"u}ders deformation, thickness ratio",
author = "Xingrui Jiang and He Wu and Wei Sun and Rengeng Li and Guohua Fan and Min Chen",
note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.; 30th International Conference on Computational and Experimental Engineering and Sciences, ICCES 2024 ; Conference date: 03-08-2024 Through 06-08-2024",
year = "2025",
doi = "10.1007/978-3-031-77489-8_62",
language = "English",
isbn = "9783031774881",
series = "Mechanisms and Machine Science",
publisher = "Springer Science and Business Media B.V.",
pages = "787--799",
editor = "Kun Zhou",
booktitle = "Computational and Experimental Simulations in Engineering - Proceedings of ICCES 2024",
}