http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
소형펀치-크리프 시험에 대한 응력해석과 일축 크리프 시험과의 상관성에 관한 연구
이송인,백승세,권일현,유효선,Lee, Song-In,Baek, Seoung-Se,Kwon, Il-Hyun,Yu, Hyo-Sun 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.12
A basic research was performed to ensure the usefulness of Small Punch-creep(SP-creep) test for residual life evaluation of heat resistant components effectively. This paper presents analytical results of initial stress and strain distributions in SP specimen caused by constant loading for SP-creep test and its experimental correlations with uniaxial creep(Ten-creep) test on 9Cr1MoVNb steel. It was shown that the initial maximum equivalent stress, ${\sigma}_{eq{\cdot}max}$ from FE analysis was correlated with steady-state equivalent creep strain rate, ${\epsilon}_{qf-ss'}$ rupture time, $t_r$, activation energy, Q and Larson-Miller Parameter, LMP during SP-creep deformation. The simple correlation laws, ${\sigma}_{sp}-{\sigma}_{TEN}$, $P_{sp}-{\sigma}_{TEN}\; and\; Q_{sp}-Q_{TEN}$ adopted to established a quantitative correlation between SP-creep and Ten-creep test data. Especially, the activation energy obtained from SP-creep test is linearly related to that from Ten-creep test at $650^{\circ}C$ as follows : $Q_{SP-P}\;{\risingdotseq}\;1.37 \;Q_{TEN},\; Q_{SP-{\sigma}}{\risingdotseq}1.53\; Q_{TEN}$.
유한요소해석을 이용한 소형펀치-크리프 시험에 관한 연구
이송인(Song-In Lee),백승세(Seoung-Se Baek),권일현(Il-Hyun Kwon),나의균(Eui-Gyun Na),유호선(Hyo-Sun Yu) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.8
A basic research is performed to ensure the usefulness of small punch-creep(SP-Creep) test for residual life evaluation of heat resistant components effectively. This investigation presents analytical results of initial stress and strain distributions in SP specimen caused by constant loading for SP-Creep test performed on 9CrIMoVNb steel. It is shown that the initial max. equivalent stress, σ<SUB>eqㆍmax</SUB> from FE analysis is successfully correlated with steady-state equivalent creep strain rate,ε<SUB>qf-ss</SUB> and rupture time, t<SUB>r</SUB> from SP-Creep test.