Materials Reports  2021, Vol. 35 Issue (z2): 433-436 |
| METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
| Research on Ultrasonic Testing Method of Rail Vehicle Composite Material Laminate Structure |
| GAO Yulong, WANG Song, ZHANG Lianhe, TAI Yangfeng
|
| CRRC Qingdao Sifang Co., Ltd., Qingdao 266111, China |
|
|
|
|
Abstract In this paper, the ultrasonic pulse reflection A-scan detection method and the penetrating C-scan detection method are used to study the delamination defects and inclusion defects of the multi-material hybrid laminate structure. The layered test block is designed with 5 step thicknesses, covering the smallest, largest thickness and the representative thickness in between, and simulates the layered defect of Φ9 mm. And simulate inclusion defects for all the auxiliary materials that may be mixed into the prepreg layer during the part laying process. The research results show that penetration C-scan detection is superior to pulsed reflection A-scan detection in defect detection ability, near-surface resolution and defect quantification for layered defects and inclusion defects. In terms of defect qualitative aspects, pulsed reflection A-scan detection is better than pulsed reflection C-scan detection.
|
|
Published: 09 December 2021
|
|
|
| Fund:This work was financially supported by National Natural Science Foundation of China (U1334206), National Key R & D Program of China (2018YFE0201300). |
About author:: Yulong Gao, director of Composites R & D Department, Senior Engineer, CRRC Qingdao Sifang Locomotive & Rolling Stock Co., Ltd. Since joining the work, he has been committed to the research of lightweight technology for high-speed trains and the application of carbon fiber composite materials in rail vehicles. Presided over and participated in a series of composite products such as next-generation subway trains, Jingxiong cabs, and high-speed train pantograph platforms. The next-generation carbon fiber metro vehicle “CETROVO” was unveiled for the world at the Berlin International Rail Transit Technology Exhibition in September 2018. As the world's first all-carbon fiber composite subway car body, CETROVO embodies many modern advanced design concepts and adopts new systems, new materials, new structures, and new processes have realized vehicle lightweight, autonomous driving, intelligent operation and maintenance and intelligent services, which will effectively promote the material revolution and technological upgrading of rail transit equipment. Won the 2019 China International Industry Fair Technology Innovation Award. He is presiding over the major scientific and technological innovation project of Shandong Province “Research and Application of High-throughput Parallel Wear-resistant Mate-rials Based on Material Genetic Engineering”.
Song Wang, director of Material Engineering R & D, PhD, Senior Engineer, CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. The main research areas are composite material quality system for rail vehicles, composite material non-destructive testing techno-logy and evaluation. Aiming at the characteristics of various new functional composite materials, molding process and structure, manufacturing process (including trimming, hole making, assembly) of rail vehicles, research the non-destructive testing and evaluation of internal defects of composite material structure, and study how to construct new defects identify mechanisms, defect judgments, new detection methods, and new processes; for large-scale and complex composite material structures, research how to establish fast visual detection methods with multi-dimensional features and in-situ high-speed detection methods. Provide technical support for the safety of composite vehicle operations and promote engineering applications. |
|
|
1 樊星.化学工业,2019,37(4),12.
2 于海宁,高长星,王艳华.合成纤维工业,2020,43(1),55.
3 马绪强,苏正涛.材料工程,2020,48(10),39.
4 Aydin E, Arel H S. Data in Brief,2019,26,1.
5 Ibrahim I D, Jamiru T, Sadikue R, et al.Procedia Manufacturing,2019,35,471.
6 丁叁叁,田爱琴,王建军,等.电力机车与城轨车辆,2015,38(S1),1.
7 王媛媛.现代制造技术与装备,2019(7),97.
8 杨玉娥,张文习.济南大学学报(自然科学版),2015,29(6),471.
9 Brunner A J, Potstada P, Sause M G R.Structural Integrity Procedia, 2019,17,146.
10 康明辉,习西男,张永民.测控技术,2018,37(S1),358.
11 Naresh K,Khan K A,Umer R,et al.Materials and Design,2020,190,1.
12 张振林,范梦豹,曹丙花,等.科学技术与工程,2018,18(18),43.
13 Dattoma V,Nobile R,Panella F W,et al.Structural Integrity Procedia,2018,8,452.
14 魏莹莹,安庆龙,蔡晓江,等.航空学报,2016,37(11),3512.
15 刘松平,刘菲菲,李乐刚,等.航空制造技术,2019,62(14),14.
16 王丹,宁宁,樊俊铃,等.科学技术与工程,2020,20(18),7531. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
