Experimental Study on Damage Evolution Characteristics of Concrete under Impact Load Based on EMI Method

In this paper, the damage evolution characteristics of C50 concrete under impact load were studied, based on electro-mechanical impedance (EMI) technique. A parallel test was conducted internal relationship between EMI technology and a resonant frequency to verify sensitivity accuracy technology. addition, another mechanical specimens with different levels establish empirical degree properties concrete. The degrees discussed by calculating root mean square deviation (RMSD) index. Results illustrated that changes can be well monitored PZT patches. Based evolutionary characteristic RMSD index, worrying information obtained before destruction On other hand, results indicated value correlated splitting tensile strength specimens; therefore, it used as reference evaluate predict performance