FBG based strain monitoring of reinforced concrete blast walls under high-velocity bullets penetration

The structure of this paper is as follows. In section 1, background of the research in this paper is introduced. In the next section, the principle and frequency measurable of FBG sensors are described in brief. The experimental device and concrete targets are introduced in later sections. In the fourth section 4, the detailed results of experiment are concluded, including three pieces of concrete target. In the last section, the conclusion is made, including some conclusions and deductions of the experiment in this paper.