Research on Strength and Nondestructive Testing Technology of Carbon Fiber Maglev Carbody
The carbon fiber maglev carbody has complex structurally that are subject to complex loads in service.In order to evaluate the strength characteristics of the carbon fiber maglev carbody,this paper proposes a carbon fiber composite strength and ultrasonic phased array nondestructive testing program.Firstly,the entire carbody is subjected to nondestructive testing to detect the initial defects generated in the manufacturing process and assembly process of the carbody.Then the strength test is conducted on the carbody to verify whether the structural strength of the carbody meets the design requirements,and ultrasonic phased array nondestructive testing is conducted on the abnormal structure area,the stress abnormal area and the high stress area after each strength test condition to confirm the status of the carbody during the test.Finally,the whole carbody is again subjected to nondestructive testing to confirm the carbody status after the strength test is completed.The test results show that the carbon fiber maglev carbody structure meets the strength requirements,and the nondestructive testing results meet the requirements of the evaluation guidelines.The proposed carbon fiber composite strength and ultrasonic phased array nondestructive testing method can effectively meet the static strength test of carbon fiber maglev carbody.