1 Title: Wave Propagation Modeling of PZT Sensing Region for Structural Health Monitoring Authors: Yuhang HU 1 and Yaowen YANG 2* Address: School of Civil and Environmental Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 1 Research Scholar, huyu0006@ntu.edu.sg 2* Corresponding author, Assistant Professor, Hcywyang@ntu.edu.sg H