@Article{cmc.2020.06331,
AUTHOR = {Yajie Sun, Yanqing Yuan, Qi Wang, Sai Ji, Lihua Wang, Shao’en Wu},
TITLE = {Impact Force Magnitude and Location Recognition of Composite  Materials},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {64},
YEAR = {2020},
NUMBER = {3},
PAGES = {1647--1656},
URL = {http://www.techscience.com/cmc/v64n3/39450},
ISSN = {1546-2226},
ABSTRACT = {In order to identify the location and magnitude of the impact force accurately, 
determine the damage range of the structure and accelerate the health monitoring of key 
components of the composite, this paper studies the location and magnitude of the impact 
force of composite plates by an inverse method. Firstly, a PZT sensor mounted on the 
material plate is used to collect the response signal generated by the impact force, which 
is from several impact locations, and establish transfer functions between the impact 
location and the PZT sensor. Secondly, this paper applies several forces to any location 
on the material plate, and collects the corresponding response signals, and reconstructs 
the impact force of several locations in turn. Finally, according to the reconstruction 
result of each location, the correct impact location is identified. Then, an improved 
regularization method is used to optimize the reconstructed impact force and accurate the 
magnitude of the impact force. The comparison experiments prove that the recognition 
error of this method is smaller.},
DOI = {10.32604/cmc.2020.06331}
}