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Research

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Computational Mechanics

Computational Mechanics

Research

Computational Mechanics

  • Data-Driven Mechanics & Physics-Informed Learning

  • AI-accelerated Nonlinear Finite Element Method

  • Digital Twin Frameworks for Complex Systems

  • Smart Composite Structures

  • Phase-field Fracture Modeling

  • Generative Design & Topology Optimization

  • 데이터 기반 역학 및 물리 정보 기반 학습

  • AI 가속 비선형 유한요소해석법

  • 복잡한 시스템을 위한 디지털 트윈 프레임워크 개발

  • 마트 복합재 구조 해석

  • 페이즈 필드 파괴 모델링

  • Generative 디자인 및 위상 최적화

  • No. 5

    A novel stability-preserving load regulation for coupled thermomechanical buckling optimization of shell structures

    Thanh Thien Banh, Minh-Chien Trinh, Hyungmin Jun†

    Computer Methods in Applied Mechanics and Engineering, 453:118809

    2026. 05. 01

    IF 7.6, JCR Top 1.8%

    Article

    A novel stability-preserving load regulation for coupled thermomechanical buckling optimization of shell structures

    Stability-Preserving Load Regulation (SPLR) for Thermomechanical Buckling

    To resolve numerical instabilities in conventional buckling analyses, this study introduces the SPLR scheme. This maintains the positive definiteness of the stiffness matrix throughout the optimization process and suppresses complex eigenvalues, ensuring reliable and physically meaningful buckling evaluations.

    Multimaterial Topology Optimization and RACM Application for Shells

    The Refined Adaptive Continuation Method (RACM) is extended to multimaterial systems to enhance convergence and numerical robustness. Furthermore, using the MITC4 element eliminates shear locking, thereby optimizing the thermomechanical buckling performance of complex curved shell structures.

  • No. 4

    Partition of unity-based tetrahedral element for nonlinear structural analysis of nearly incompressible hyperelastic materials

    Taejung Lim, Minh-Chien Trinh, Hyungmin Jun†

    Finite Elements in Analysis and Design, 254:104464

    2026. 02. 01

    IF 3.8, JCR Top 1.3%

    Article

    Partition of unity-based tetrahedral element for nonlinear structural analysis of nearly incompressible hyperelastic materials

    Development of the Partition of Unity-based Four-node Tetrahedral Element

    The paper introduces TET4E, a refined element using the Partition of Unity method to enrich displacement fields and eliminate volumetric locking in nearly incompressible materials. It integrates Mooney-Rivlin and Neo-Hookean models within a Total Lagrangian framework to accurately handle large deformations without adding nodes.

    Nonlinear Modal Analysis and Numerical Validation

    This study validates TET4E using a new iterative procedure for nonlinear modal analysis to capture amplitude-dependent frequencies and mode shapes. Numerical examples, such as soft robots and distorted plates, demonstrate its superior accuracy and convergence over traditional elements, even with coarse meshes.

  • No. 3

    Fracture behavior of thermal mismatch in functionally graded materials using phase-field modeling

    Nguyen, V.H., Trinh, M.C. and Jun, H.†

    Engineering Fracture Mechanics, 310:110433

    2024. 11. 08

    IF 5.3, JCR 11.4%

    Article

    Fracture behavior of thermal mismatch in functionally graded materials using phase-field modeling

    Phase-Field Modeling for FGM Thermal Fracture

    This paper presents a phase-field model to analyze thermal-mismatch fracture behavior in functionally graded materials (FGMs). By homogenizing fracture resistance via the rule of mixtures , the model accurately captures complex experimental crack patterns in bi-material plates, showing better agreement with experimental data than theoretical models.

    Crack and Energy Evolution in Various Plate Shapes

    The validated model is applied to investigate thermal fractures in circular, square, and triangular FGM plates. It provides a fundamental understanding of fracture mechanisms by analyzing three key aspects: damage fields for crack propagation, principal stress fields in fracture-critical regions, and energy evolution during deformation.

  • No. 2

    Geometrically nonlinear analysis of functionally graded composite shells using MITC4 and MITC9 elements

    Trinh, M.C. and Jun, H.†

    Thin-Walled Structures, 185: 110632

    2023. 04. 16

    IF 6.4, JCR 6.2%

    Article

  • No. 1

    The MITC3+ shell element enriched in membrane displacements by interpolation covers

    Jun, H.*, Yoon, K., Bathe, K.J., Lee, P.S.

    Computer Methods in Applied Mechanics and Engineering, 337: 458-80

    2018. 08. 16

    IF 7.2, JCR 3.3%

    Article

산업통상자원부 바이오산업기술개발사업 임상데이터 및 생체신호 기반 심장혈관 생체역학 3D 모델링-시뮬레이션 SW 개발 2024-06-01 ~ 2028-12-31
농촌진흥청 신농업기후변화대응체계구축사업 고온환경에 따른 가금산물(계란, 계육)의 신선도 및 품질 저하 방지기술 개발 2024-04-01 ~ 2027-12-31
한국전력공사 사외공모 기초연구 한반도 해역에 적합한 20 MW 급 초대형 해상풍력 발전 시스템 개념설계 2021-02-01 ~ 2024-01-31