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Metallic materials - Very high cycle fatigue - Ultrasonic fatigue test method
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Basic data
| Standard ID | GB/T 43896-2024 (GB/T43896-2024) |
| Description (Translated English) | Metallic materials - Very high cycle fatigue - Ultrasonic fatigue test method |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | H22 |
| Classification of International Standard | 77.040.10 |
| Word Count Estimation | 26,212 |
| Date of Issue | 2024-04-25 |
| Date of Implementation | 2024-11-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43896-2024: Metallic materials - Very high cycle fatigue - Ultrasonic fatigue test method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77:040:10
CCSH22
National Standards of People's Republic of China
Very high cycle fatigue of metal materials
Ultrasonic fatigue test method
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Symbols and instructions 1
5 Principle 2
6 Sample 3
7 Test equipment 7
8 Test steps 9
9 Test Report 10
Appendix A (Informative) Design of Ultrasonic Fatigue Specimens 12
Appendix B (Informative) Stress Control Methods for Ultrasonic Fatigue Specimens of Different Shapes 17
References 19
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Iron and Steel Association:
This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183):
This document was drafted by: Baosteel Co:, Ltd:, Sichuan University, Metallurgical Industry Information Standards Research Institute, China Iron and Steel Research Institute Co:, Ltd:
Company, Suzhou Mida Testing Technology Co:, Ltd:, Institute of Mechanics, Chinese Academy of Sciences, East China University of Science and Technology, National Energy Group New Energy Technology Research Institute
Institute Co:, Ltd:, Chengdu Meichuangtu Technology Co:, Ltd:, Zhejiang University City College, Shenzhen Xince Standard Technology Service Co:, Ltd:, Zhejiang Province
Special Equipment Science Research Institute, Shandong Juncheng Metal Technology Co:, Ltd:, Ocean University of China, Zhejiang Jisen Metal Technology Co:, Ltd:
The main drafters of this document are: Peng Wenjie, Sun Chengqi, Wang Qingyuan, Wu Shengchuan, Liu Dong, Zhu Mingliang, Dong Li, Wang Chong, Wei Wenchao, Zhou Yedong,
Du Jinfeng, Xie Qing, Li Rongfeng, Xia Li, Xuan Fuzhen, Gao Yifei, Fang Jian, Hou Huining, Sun Pu, Cui Hongzhi, Qin Bin, Du Liying, Wu Xiaolei, Wen Jianfeng,
Liu Yongjie, Li Wenkai, Qiao Zhan, Shi Jie, Fu Junping, Li Hongguang, Cui Zhongyu:
Introduction
With the development of industrial technology, some engineering parts, such as engine parts, automobile load-bearing parts, railway axles and tracks, aircraft,
Bridges and special medical equipment, etc:, are subjected to cyclic loads, and their actual service life exceeds 107 cycles, and even reaches 109 cycles:
In recent years, there are more and more ultra-high cycle load-bearing parts, and the demand for ultra-high cycle fatigue testing of metal materials is increasing day by day: Ultrasonic fatigue testing is a method to complete ultra-high cycle fatigue testing:
One of the effective means of high cycle fatigue: Compared with high cycle fatigue, ultrasonic fatigue has a much higher test frequency, specimen size design, stress control
etc: are different from high cycle fatigue, and high cycle fatigue test methods are no longer suitable:
Ultrasonic fatigue testing has the following characteristics due to its ultra-high operating frequency:
--- Accelerate fatigue test and significantly shorten fatigue test cycle;
---Can carry out ultra-high cycle (such as 108 cycles, 109 cycles or even 1010 cycles) fatigue tests on metal materials of parts/structures:
Very high cycle fatigue of metal materials
Ultrasonic fatigue test method
1 Scope
This document specifies the test specimens, test equipment, test procedures and test methods for ultra-high cycle fatigue ultrasonic fatigue test of metallic materials at room temperature:
Report:
This document is applicable to ultra-high cycle fatigue with a test frequency of:20000Hz±500Hz, single-end axial excited vibration, and stress ratio R=-1
test:
Fatigue tests with other stress ratios or ultrasonic resonance frequencies can refer to this method, and the corresponding specimens need to be designed and verified separately:
This document does not cover notched specimens, but the fatigue test procedures described in this document can be applied to very high cycle fatigue testing of notched specimens:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 2614 Nickel-chromium-nickel-silicon thermocouple wire
GB/T 3075 Axial force control method for fatigue test of metallic materials
GB/T 38897 Ultrasonic measurement method for elastic modulus and Poisson's ratio for non-destructive testing
JJF1305 Linear Displacement Sensor Calibration Specification
JJG623 Resistance Strain Gauge
JJG856 Working Radiation Thermometer
3 Terms and definitions
The terms and definitions defined in GB/T 3075 and the following apply to this document:
3:1
Very high cycle fatigue veryhighcyclefatigue
Fatigue with a cycle frequency greater than 107:
3:2
Fatigue test with cyclic stress applied at ultrasonic resonant frequency:
3:3
Fatigue specimens that meet the requirements of ultrasonic frequency resonance:
4 Symbols and instructions
The symbols used in this document and their corresponding descriptions are shown in Table 1:
...
