공학DB
한국과학기술원 iCaRE Laboratory
실험실 소개 이미지
실험실 정보안내
지도교수 심기동
전공분류 신뢰성공학(Confidence Engineering),
주소 대전광역시 유성구 대학로 291 기계 6114호
전화 042-350-7318
홈페이지 https://icare.kaist.ac.kr/
실험실소개

 

Welcome to iCaRE Lab. @ KAIST
(in-situ Characterization and Reliability Evaluation)
 

Our research interests ​span the areas of mechanics of materials and advanced manufacturing
to understand the mechanical behavior of materials at different length scales,
environment conditions and to use the information to develop materials/structures
​for advanced technological applications.

연구분야

 

 

​In-situ Characterization and Reliability Evaluation (iCaRE) Lab

Uncovering the Mechanical Response of Disparate Material Systems (from nano to bulk-scale)

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​Research Topics

In-situ Mechanical Testing of Metallic Thin Films at Elevated Temperatures
Develop experiments and models to understand the high temperature mechanical behavior of materials at small length scales with a particular emphasis on anelastic deformation and diffusional creep. Understand deformation mechanisms operating at small length scales, elevated temperatures. Passivation layer effect on the high temperature deformation mechanism will be further investigated.​

Development of High Temperature Structural Materials and Devices
​Develop metallic materials for high temperature MEMS sensors and micro-switches. Combinatorial approach to deposit films with compositional gradients and evaluate room temperature, high temperature mechanical properties. Tailor high temperature mechanical properties by heat treatment, controlling impurity content. Simple metal MEMS devices with improved functionality will be fabricated using the newly developed alloy.

Small-scale Mechanical Testing as a Benchmark for Crystal Plasticity Modeling
​​Small-scale experiments to facilitate collection of salient mechanical properties at appropriate temperatures and microstructural states. Teaming with crystal plasticity modelers, experiments will be used to provide model parameters, validate key predictions, and supplement and extend the range of validity and reliability of the models.

 

연구성과
Gi-Dong Sim, Yun Hwangbo, Hyun-Ho Kim, Soon-Bok Lee, Joost J. Vlassak
Fatigue of polymer-supported Ag thin films
Scripta Materialia, 2012, Vol. 0, No. 0, pp. 0~ 0

Chang-Kyu Chung, Gi-Dong Sim, Soon-Bok Lee, and Kyung-Wook Paik
The Effects of the Type of Conductive Particles on the Electrical Stability and Reliability of Anisotropic Conductive Film Interconnections for Chip-On-Board Applications
IEEE Transactions on Components and Packaging Technologies , 2012, Vol. 0, No. 0, pp. 0~ 0

Se Young Yang, Woon-Seong Kwon, Soon-Bok Lee
Chip warpage model for reliability prediction of delamination failures
Microelectronics Reliability, 2012, Vol. 52, No. 0, pp. 718~ 724

Lee, K.-O., Lee, S.-B.
Modeling of materials behavior at various temperatures of hot isostatically pressed superalloys
Materials Science and Engineering A, , Vol. 541, No. 0, pp. 81~ 87

Kyung-Woon Jang, Jin-Hyoung Park, Soon-Bok Lee, Kyoung-Wook Paik
A study on thermal cycling (T/C) reliability of anisotropic conductive film (ACF) flip chip assembly for thin chip-on-board (COB) packages
Microelectronics Reliability, 2012, Vol. 0, No. 0, pp. 0~ 0

Q. Jiao, G.-D. Sim, M. Komarasamy, R.S. Mishra, P.K. Liaw, J.A. El-Awady
Thermo-mechanical response of single-phase face-centered-cubic AlxCoCrFeNi high-entropy alloy microcrystals
Materials Research Letters, 2018, Vol. 6, No. 0, pp. 300~ 306

​G.-D. Sim, J.A. Krogstad, K.Y. Xie, S. Dasgupta, G.M. Valentino, T.P. Weihs, K.J. Hemker
Tailoring the mechanical properties of sputter deposited nanotwinned nickel-molybdenum-tungsten films
Acta Mater, 2018, Vol. 144, No. 0, pp. 216~ 225

​Q. Jiao, G.-D. Sim, H. Fan, J.A. El-Awady
Micro-mechanical characterization of micro-architectured tungsten coatings
Materials Science and Engineering: A, 2017, Vol. 705, No. 0, pp. 366~ 375

G.-D. Sim, J.A. Krogstad, K.M. Reddy, K.Y. Xie, G.M. Valentino, T.P. Weihs, K.J. Hemker
Nanotwinned metal MEMS films with unprecedented strength and stability
Science Advances, 2017, Vol. 0, No. 0, pp. 0~ 0

​G.-D. Sim, G. Kim, S. Lavenstein, M.H. Hamza, H. Fan, J.A. El-Awady
Anomalous hardening in magnesium driven by a size-dependent transition in deformation modes
Acta Mater, 2018, Vol. 144, No. 0, pp. 11~ 20

S. Lavenstein, B. Crawford, G.-D. Sim, P.A. Shade, C. Woodward, J.A. El-Awady
High frequency in situ fatigue response of Ni-base superalloy René-N5 microcrystals
Acta Mater, 2018, Vol. 144, No. 0, pp. 154~ 163

I. Oh, D. Park, E. Cheong, H. Jo, S. Park, D. You, T. Kim, Y. Park, ​K. Kim, G.-D. Sim, C. Shin, D. Lee
Anisotropic He-ion irradiation damages in nanocolumnar W thin films
Extreme Mechanics Letters 41, 2020, Vol. 0, No. 0, pp. 100984~ 0

J.-H. Choi, G.-D. Sim, B.-C. Lee
​A four-node C0 tetrahedral element based on the node based smoothing technique for the modified couple stress theory
​Computational Mechanics 65, 2020, Vol. 0, No. 0, pp. 1493~ 1508

G.K. Cuddalorepatta, G.-D. Sim, H. Li, D. Pantuso, J.J. Vlassak
Residual stress–driven test technique for freestanding ultrathin films: Elastic behavior and residual strain
Journal of Materials Research 34, 2019, Vol. 0, No. 0, pp. 3474~ 3482

프로젝트
[Flexible Hose의 가속수명시험을 위한 복합가속계수 모델에 관한 연구] Study on combined life model for accelerating testing of flexible hydraulic hose

[소재시험을 통한 터보펌프 HIP 내열강 소재의 기계적 특성에 관한 연구] Material Property Test of HIP Superalloys for Liquid Rocket Engine Turbopump

[고온 피로 해석용 특정 계수 추출 및 재료 시험 방법 개발] Specific Parameter Extraction for High Temperature Fatigue Analysis and Development of Material Testing Methods

[가스터빈 신뢰성 향상을 위한 Superalloy의 TMF 거동 분석 및 수명 예측 모델 개발] 가스터빈 신뢰성 향상을 위한 Superalloy의 TMF 거동 분석 및 수명 예측 모델 개발

[고온 저주기 피로 해석용 최적 재료상수 추출 및 시험 방법 개발] Specific Parameter Extraction for Elevated-Temperature LCF Analysis and Development of Testing Methods