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Применить Всего найдено 8. Отображено 8.
25-03-2010 дата публикации

METHOD FOR CORRECTING AN INCOMPLETE SHAPE OF A SPHERICAL INDENTER THROUGH CONTINUOUS EFFECTIVE RADIUS DERIVATION

Номер: WO2010032932A3
Автор: KANG, Seungkyun, KANG, Ingeun, LEE, Kyungwoo, KWON, Dongil
Принадлежит:

The present invention relates to a method for correcting an incomplete shape of a spherical indenter, characterized in that the effective radius through which materials actively react to the depth of contact is defined to accurately derive the physical property evaluated through an indentation test using the spherical indenter having an incomplete shape. Further, the present invention proposes an indirect correction method using a reference curve to correct the shape of a spherical indenter in an efficient manner.

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Номер записи: 1
24-12-2014 дата публикации

INDENTATION FATIGUE TEST MODULE

Номер: WO2014204032A1
Автор: KWON, Dong Il, JEON, Seung Won, CHANG, Hee Kwang, JI, Jung Hyun
Принадлежит:

The present invention relates to an indentation fatigue test module mounted on an indentation tester applied to an indentation fatigue evaluation system. According to an embodiment of the present invention, an indentation fatigue test module mounted on an indentation tester applied to an indentation fatigue evaluation system has an actuator which is a piezoelectric-type actuator, the actuator moving an indenter and applying an indentation load, thereby advantageously applying loads repeatedly at a frequency of up to 100Hz and, at the same time, implementing 50mN-grade load resolution and 10nm-grade displacement resolution.

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Номер записи: 2
13-01-2011 дата публикации

STENT

Номер: KR2011004925A1
Автор: SHIN, Kyong Min, GWON, Dong Il
Принадлежит:

In cases where bile cannot be smoothly supplied to the duodenum because cancer has occurred inside the bile duct or because of stenosis of the bile duct, the smooth supply of bile is ensured by surgically inserting a cylindrical stent at the site in question. Further, normal stents present a problem in that, although they do not suffer the phenomenon of slipping from the place where they are fitted, growing cancer cells penetrate inside the stent, while covered stents present a problem in that, although they can resolve the problem of cancer cells penetrating the inside even when the cells are growing, they can give rise to the phenomenon of slipping from the place where they are fitted as well as pancreatitis and gallstones. The present invention has been devised to resolve problems such as those above, and the object of the present invention is to provide a stent adapted to prevent food which is passing through the duodenum from flowing back into the bile duct and to ensure the smooth ...

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Номер записи: 3
12-10-2016 дата публикации

INTERFACIAL BONDING FORCE EVALUATION METHOD

Номер: KR1020160118852A
Автор: KIM, JONG HEON, KWON, DONG IL
Принадлежит:

The present invention relates to a method of evaluating an interfacial bonding force. According to the present invention, a method of evaluating the interfacial bonding force comprises: a step of measuring a maximum indentation load (L_max) and a maximum indentation depth (h_max); a step of calculating a hardness (H_s) of the substrate, a hardness (H_f) of the thin film, a complex hardness (H_c), a volume (V_s) of a plastic zone of a substrate, and a volume (V_f) of plastic zone of the thin film; a step of comparing the hardness (H_s) of the substrate with the hardness (H_f) of the thin film; a step of calculating an interface variable (x^3); and a step of calculating a work (W_adhesion) due to an interface bonding force, thereby obtaining a quantitative interface bonding force not affected by the test conditions. COPYRIGHT KIPO 2016 ...

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Номер записи: 4
08-01-2019 дата публикации

금속-고분자 복합재료의 제조방법

Номер: KR1020190002220A
Автор: 유웅열, 김재호, 성민창, 권동일
Принадлежит:

... 단량체, 디아조늄염 및 제1 용매를 포함하는 제1 조성물을 금속 기재의 표면에 1차 스프레이하는 단계; 환원제 및 제2 용매를 포함하는 제2 조성물을, 상기 1차 스프레이된 금속 기재의 표면에 2차 스프레이하여 단량체가 그라프팅된 고분자를 포함하는 유기 박막층을 형성하는 단계; 및 상기 유기 박막층 상에 고분자 기재를 부착하는 단계를 포함하는 금속-고분자 복합재료의 제조방법의 제조 방법이 제시된다.

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Номер записи: 5
25-03-2010 дата публикации

METHOD FOR CORRECTING AN INCOMPLETE SHAPE OF A SPHERICAL INDENTER THROUGH CONTINUOUS EFFECTIVE RADIUS DERIVATION

Номер: KR2010032932A2
Автор: KANG, Seungkyun, KANG, Ingeun, LEE, Kyungwoo, KWON, Dongil
Принадлежит:

The present invention relates to a method for correcting an incomplete shape of a spherical indenter, characterized in that the effective radius through which materials actively react to the depth of contact is defined to accurately derive the physical property evaluated through an indentation test using the spherical indenter having an incomplete shape. Further, the present invention proposes an indirect correction method using a reference curve to correct the shape of a spherical indenter in an efficient manner.

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Номер записи: 6
17-02-2017 дата публикации

METHOD TO MEASURE FRACTURE TOUGHNESS USING CONTINUOUS INDENTATION TEST METHOD

Номер: KR101707492B1
Автор: KIM, JUN YEONG, KWON, DONG IL, KIM, KWANG HO, JEON, SEUNG WON, KIM, WOO JOO, CHOI, SEUNG HUN
Принадлежит: FRONTICS. INC.

The present invention relates to a method to measure fracture toughness using a continuous indentation test method, and to a method to measure fracture toughness by using the continuous indentation test method to measure a load and the indentation depth in real time while applying the load to a specimen by a flat punch-shaped indenter. According to the present invention, the method comprises: an indentation test performance step of performing an indentation test up to a predetermined indentation depth with an indenter with a predetermined radius to generate a set load displacement curve; a conversion step of converting the set load displacement curve into a generalized curve of the radius of the indenter with respect to the load and the indentation depth; a step of searching for a fracture start stress of a time point when the fracture has started and the radius of the indenter with respect to the indentation depth at the fracture start time point in a generalized curve; a step of calculating ...

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Номер записи: 7
13-12-2016 дата публикации

계면접합력 평가방법

Номер: KR0101685507B1
Автор: 김종헌, 권동일
Принадлежит: (주)프론틱스

... 본 발명은 계면접합력 평가방법에 관한 것이다. 본 발명에 의하면 계면접합력 평가방법는 압입시험을 통해 최대압입하중(Lmax)과 최대압입깊이(hmax)를 측정하는 단계; 최대압입하중(Lmax)과 최대압입깊이(hmax)를 경도(Hs, Hf, Hc) 산출식과 소성영역 부피(Vs, Vf) 산출식에 대입하여 기판의 경도(Hs), 박막의 경도(Hf), 복합경도(Hc), 기판의 소성영역 부피(Vs), 박막의 소성영역 부피(Vf)를 산출하는 단계; 기판의 경도(Hs)와 박막의 경도(Hf)를 비교하는 단계; 각각의 경도(Hs, Hf, Hc)와 소성영역 부피(Vs, Vf)를 계면변수(x3) 산출식에 대입하여 계면변수(x3)를 산출하는 단계; 및 계면에 의한 일(Wadhesion) 산출식을 통해 계면접합력에 의한 일(Wadhesion)을 산출하는 단계를 포함하여 시험조건에 영향을 받지 않는 정량적인 계면접합력을 구하게 되는 계면접합력 평가방법이다.

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Номер записи: 8