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Prof. Dr. Xinsheng Xu
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Academic Career Length
19Years (2008-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 February 2022 in Thin-Walled Structures
Journal Article
JJJufang Jia
Jufang JiaALAndi Lai
Andi Lai
TLTong Li
Tong Li
ZZZhenhuan Zhou
Zhenhuan Zhou
XXXinsheng Xu
Xinsheng Xu
C.W. Lim15 February 2019 in Smart Materials and Structures
Journal Article
KZKai Zhou
Kai ZhouYZYuebin Zheng
Yuebin Zheng
JZJiaqi Zhang
Jiaqi ZhangXXXinsheng Xu
Xinsheng XuSMShuyi Ma
Shuyi Ma
ZWZhanjun Wu
Zhanjun Wu
This paper presents a new method to separate multi-mode signal of Lamb wave through reconstruction of pure mode basis signals calculated based on phase and group velocity. Individual signal of each mode contained in multi-mode signal can be obtained and analyzed by mode separation. Simultaneously, the hidden damage scattering signal can be extracted after removing the undesired signal. Two simulations are conducted on aluminum plates as examples to demonstrate the procedure of mode separation in detail. The first one models Lamb wave propagating in an aluminum plate without damage to separate each mode step by step. Extraction of damage scattering signal through mode separation is presented with the other simulation conducted on a damaged aluminum plate. Also an experiment is designed to example the applicability of this method. The results of both simulations and experiment verify the validity and accuracy of this method. This mode separation method provides a potential baseline free approach for damage detection using Lamb wave.
1 April 2018 in Journal of Vibration Engineering & Technologies
Journal Article
ZTZhen Zhen Tong
Zhen Zhen Tong
YNYi Wen Ni
Yi Wen Ni
ZZZhen Huan Zhou
Zhen Huan Zhou
XXXinsheng Xu
Xinsheng XuSZSheng Bo Zhu
Sheng Bo Zhu
XMXu Yuan Miao
Xu Yuan Miao
Journal Article
WWwang wei
wang weiYWYajing Wang
Yajing WangZZZhen Zhao
Zhen ZhaoZTZhenzhen Tong
Zhenzhen TongXXXinsheng Xu
Xinsheng XuC.W. LimA crashworthiness design of foam-filled local nanocrystallized thin-walled tubes (FLNTs) is proposed by using foam-filled structures and ultrasonic impact surface treatment. The crashworthiness and deformation modes of FLNTs are studied using an experiment and numerical analysis. A finite element numerical model of FLNTs is established, and the processing and test platform of FLNTs is set up to verify the numerical predication and analytical design. The results show that local nanocrystallization is an effective method to enhance crashworthiness for hexagonal FLNTs. The FLNTs with four circumferential continuous stripes of surface nanocrystallization exhibit a level of 47.12% higher specific energy absorption than the untreated tubes in numerical simulations for tubes with a 50% ratio of nanocrystallized area. Inspired by the strength mechanism, a novel nested foam-filled local surface nanocrystallization tube is further designed and studied in detail.
28 June 2023 in Journal of Physics D: Applied Physics
Journal Article
GWGuifeng Wang
Guifeng Wang
YGYanhong Guan
Yanhong Guan
ZCZhenyu Chen
Zhenyu ChenXXXinsheng Xu
Xinsheng XuZZZhenhuan Zhou
Zhenhuan ZhouC.W. LimRainbow trapping is of great significance for frequency-based wave splitting and broadband wave attenuation. By recognizing the deficiency of prevailing gradient rainbow reflection devices in terms of energy concentration and broadband vibration isolation, we design a new topological rainbow trapping device by introducing a topological protected interface mode (TPIM) into the prevailing gradient rainbow device. Therefore, a topological rainbow trapping beam composed of a homogenous beam rested on an alternate and gradient foundation is constructed. Using theoretical and numerical analysis, we perform a unit-cell band structure analysis. The dependence of bandgap region and group velocity on the reference foundation stiffness is investigated. With the help of the topological phase transition and Zak phase analysis, we successfully predict and demonstrate TPIM. A quantitative evaluation of the advancement of topological rainbow devices upon the prevailing gradient device in vibration amplification and broadband wave attenuation is also presented. We believe that the robust one-dimensional topological rainbow trapping beam will be useful in many applications, such as energy harvesting, wave splitting, and vibration control.
1 June 2008 in Applied Mathematics and Mechanics
Journal Article
About Me
He studied at Peking University between 1978 and 1993, obtaining his BSc, MSc and PhD degrees, and did his postdoctoral research at Dalian University of Technology in 1993. On the eve of his release in August 1995, he was promoted directly to the rank of Professor and became Deputy Director of the Institute of Engineering Mechanics. He has served as a visiting professor in several universities and a visiting researcher in institutes of the Academy of Sciences. He has been a member of the National 211 Project Expert Group; a member of the National Doctoral Fund Review Expert Group; a member of the Ministry of Education University Science and Technology Award Review Expert Group; a member of the National Doctoral Point, Master's Point and Key Discipline Review Expert Group; and the Director of the Fluid Mechanics Professional Committee of the Provincial Mechanics Society. He has been awarded the Croucher Foundation in Hong Kong, the China National Postdoctoral Award Fund (China Outstanding Postdoctoral Fellowship, 1/10), and the title of "National Outstanding Postdoctoral Fellow". He has undertaken more than ten national research projects and published more than 200 academic papers, in addition to many monographs, patents and software copyrights.
He has trained a number of international joint postgraduate students and acted as a liaison for the joint training of PhD students from Dalian University of Technology and City University of Hong Kong.