Xin Ren is an associate professor in the School of Civil Engineering, Nanjing Tech University. He graduated with a Ph.D. from the Royal Melbourne Institute of Technology, Australia in 2017 (Supervised by Professor Xie Yimin, academician of the Australian Academy of Engineering; and Professor Tian Hongqi, academician of the Chinese Academy of Engineering). Excellent young teacher of "Qing Lan Project" in Jiangsu Province; Top-notch talents of middle-aged and young people in Nanjing. Member of the International Negative Poisson's Ratio Materials and Structure Academic Committee (the only one in mainland China); Member of the Royal Society of Victoria, Australia; Reviewer of the National Natural Science Foundation of China; Member of the Youth Working Committee of the Jiangsu Mechanics Society; Vice president of the Young Teachers Association of Nanjing University of Technology. Published nearly 40 papers, including two "ESI Highly Cited" papers, with a total cited number of more than 1,000 times. Mainly engaged in the research of applied mechanics, new materials and new structures, mechanical metamaterials, composite materials, etc.