Estimation Apparatus and Method of Creep Crack Rate and Relevant Growth Fracture Parameters for Small Punch Specimen with a Micro Groove

The present invention relates to an apparatus for measuring crack growth properties of creep using a small specimen with a micro groove and a method thereof. According to the present invention, the apparatus comprises: a lower die on which the edge of a specimen is seated and a lower die hole is for...

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Main Authors YOON, KEE BONG, THANH TUAN NGUYEN
Format Patent
LanguageEnglish
Korean
Published 28.11.2018
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Abstract The present invention relates to an apparatus for measuring crack growth properties of creep using a small specimen with a micro groove and a method thereof. According to the present invention, the apparatus comprises: a lower die on which the edge of a specimen is seated and a lower die hole is formed in the center; an upper die coupled to an upper portion of the lower die to fix the specimen; and a punching means inserted into an upper die hole formed at the center of the upper die to press an upper surface of the specimen. On a lower surface of the specimen, a semi-elliptical micro groove may be processed to measure crack growth properties of creep. 본 발명은 미세홈이 있는 소형시편을 이용한 크리프 균열성장 물성 측정 장치 및 방법에 관한 것이다. 본 발명에 의한 크리프 균열성장 물성 측정 장치는 상기 시편의 가장자리가 안착되고, 중앙에는 하부 다이홀이 형성되는 하부 다이; 상기 하부 다이의 상부에 결합되어 상기 시편을 고정시키는 상부 다이; 및 상기 상부 다이의 중앙에 형성된 상부 다이홀에 삽입되어 상기 시편의 상면을 가압하는 펀칭수단을 포함하고, 상기 시편의 하면에는 크리프 균열성장 물성측정을 위하여 반타원형의 미세홈이 가공될 수 있다.
AbstractList The present invention relates to an apparatus for measuring crack growth properties of creep using a small specimen with a micro groove and a method thereof. According to the present invention, the apparatus comprises: a lower die on which the edge of a specimen is seated and a lower die hole is formed in the center; an upper die coupled to an upper portion of the lower die to fix the specimen; and a punching means inserted into an upper die hole formed at the center of the upper die to press an upper surface of the specimen. On a lower surface of the specimen, a semi-elliptical micro groove may be processed to measure crack growth properties of creep. 본 발명은 미세홈이 있는 소형시편을 이용한 크리프 균열성장 물성 측정 장치 및 방법에 관한 것이다. 본 발명에 의한 크리프 균열성장 물성 측정 장치는 상기 시편의 가장자리가 안착되고, 중앙에는 하부 다이홀이 형성되는 하부 다이; 상기 하부 다이의 상부에 결합되어 상기 시편을 고정시키는 상부 다이; 및 상기 상부 다이의 중앙에 형성된 상부 다이홀에 삽입되어 상기 시편의 상면을 가압하는 펀칭수단을 포함하고, 상기 시편의 하면에는 크리프 균열성장 물성측정을 위하여 반타원형의 미세홈이 가공될 수 있다.
Author THANH TUAN NGUYEN
YOON, KEE BONG
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DocumentTitleAlternate 미세홈이 있는 소형시편을 이용한 크리프 균열성장 물성 측정 장치 및 방법
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Snippet The present invention relates to an apparatus for measuring crack growth properties of creep using a small specimen with a micro groove and a method thereof....
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SubjectTerms INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
Title Estimation Apparatus and Method of Creep Crack Rate and Relevant Growth Fracture Parameters for Small Punch Specimen with a Micro Groove
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