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논문 기본정보
3차원 미세조직에 기반한 잔류응력 하의 이상 조직강의 소성변형률비 예측
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | 소성가공 = Transactions of materials processing : Journal of the Korean society for technology of plastics |
| ISSN | 1225-696x, |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | 하진진,이진우,이명규,김지훈 |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2015-01-01 |
| 초록 | A microstructure-based finite element simulation was conducted to predict the plastic strain ratio (R-value) of a dual-phase (DP) steel. The representative volume elements (RVEs) concept was adopted for the image-based FE modeling and a 3D model was constructed using sequential 2D images. Each phase was considered with the von-Mises yield criterion and the Swift model. The Swift parameters were defined by the empirical equations based on the chemical composition. The developed model was applied to analyze the effect of residual stress on the R-value and stress distribution. In order to consider the residual stress development after cold rolling, 10 % compression was applied in the thickness direction and unloaded before the tensile stress was applied in the rolling direction. The results showed a reasonable prediction for the R-value evolution: a sharp increase at small strains was well described and a transition followed in the downward direction. The R-value evolution was analyzed using the stress distribution change on the #x03C0;-plane |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201509651101970 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | R-value,Meso-scale,Representative Volume Element,Dual-phase Steel,Finite Element Simulation |