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Subject

Ultrasonic Fatigue Test Guidelines for Reliability Standardization
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초음파피로 시험평가 신뢰성 규격화를 위한 방법

논문 기본 정보

Type
Proceeding
Author
InSik Cho (엠브로지아) JungCheol Park (포항산업과학연구원) ByeongChoon Goo (한국철도기술연구원)
Journal
The Korean Society of Mechanical Engineers 대한기계학회 춘추학술대회 대한기계학회 창립 70주년 기념 학술대회
Published
2015.11
Pages
1,104 - 1,108 (5page)

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Ultrasonic Fatigue Test Guidelines for Reliability Standardization
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Abstract· Keywords

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Evaluation of the test is based on the ultrasonic fatigue test method for a material which requires high cycle fatigue life and basic fatigue tests with standard KS B ISO 1099 and is designated as ASTM E 466 and the main difference is in the way of the load based on the load and the load added by using an ultrasonic acoustic resonance. UFT utilizes a piezoelectric oscillator(piezoelectric actuator) to generate an ultrasonic waves train at a frequency of 20 ㎑ and it amplifies the amplitude to which a fatigue test can be performed. In UFT, the maximum displacement occurs at the end of the specimen, while the maximum stress amplitude occurs in the center of the specimen. Dynamic Young`s modulus is required in order to obtain the maximum stress amplitude which can be obtained from acoustic test according to the ASTM E1875 standard. Therefore, the evaluation method of UFT machine and test methods and processes, related fields overseas research trends and technological level and reliability need to be standardized.

Contents

Abstract
1. 초음파 피로시험장치
2. 초음파 피로시험장치 응용사례
3. Very High Cycle Fatigue Properties
4 RIST Analysis & Assessment(http://rac.rist.re.kr/)
4. 결론
참고문헌

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UCI(KEPA) : I410-ECN-0101-2016-550-002181368