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Research · 02

Computational Mechanics

Computational mechanics: topology optimization removing material from a beam until an optimal truss-like structure remains

Consistent phase-field modeling of dynamic ductile fracture in shear-deformable curved shells

Consistent phase-field modeling of dynamic ductile fracture in shear-deformable curved shells

International Journal of Plasticity, 203:104751 Article

Van-Hoi Nguyen, Minh-Chien Trinh, Hyungmin Jun†

IF 15.4 JCR Top 1.4% 2026. 06. 18

Shear-Deformable Phase-Field Fracture Framework

This study develops a consistent phase-field framework for dynamic ductile fracture in curved shells. It integrates transverse shear deformation, plane-stress plasticity, and coupled geometric and material nonlinearities within a robust shell formulation.

Numerical Benchmarks and Fracture Predictions

Numerical benchmarks reproduce published fracture responses under static and dynamic loading. The framework captures crack initiation, propagation, curving, branching, and crack-tip velocities in thin and moderately thick shells.

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

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

Computer Methods in Applied Mechanics and Engineering, 453:118809 Article

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

IF 7.6 JCR Top 1.8% 2026. 05. 01

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.

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

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

Finite Elements in Analysis and Design, 254:104464 Article

Taejung Lim, Minh-Chien Trinh, Hyungmin Jun†

IF 3.8 JCR Top 1.3% 2026. 02. 01

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.

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

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

Engineering Fracture Mechanics, 310:110433 Article

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

IF 5.3 JCR Top 11.4% 2024. 11. 08

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.

  • 2026

    Consistent phase-field modeling of dynamic ductile fracture in shear-deformable curved shells

    Van-Hoi Nguyen, Minh-Chien Trinh, Hyungmin Jun†

    International Journal of Plasticity, 203:104751 · 2026. 06. 18

    IF 15.4 JCR Top 1.4% Article

  • 2026

    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

  • 2026

    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

  • 2024

    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 Top 11.4% Article

  • 2018

    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 Top 3.3% Article

2021 2022 2023 2024 2025 2026 2027 2028 2029 2030

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특수목적 미래자동차 경량화를 위한 AI 가속 멀티피직스 설계 프레임워크

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전력자립형 해저 데이터센터 연구단

과학기술정통부 · KAIST InnoCORE

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농촌진흥청 · 신농업기후변화대응체계구축사업

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한국전력공사 · 사외공모 기초연구

생체재료 기반 AI 메카노바이오 플랫폼

산업통상자원부 · 산업혁신인재 성장지원사업

2026.042030.12

특수목적 미래자동차 경량화를 위한 AI 가속 멀티피직스 설계 프레임워크

전북대학교 BK21 대학원혁신 · JBNU-G 국제 연구협력 지원

2025.092026.02

특수목적 미래자동차 ELITE 인재양성 사업단

한국연구재단 · 4단계 BK21 사업 혁신인재양성사업 교육연구단

2025.032027.08

전력자립형 해저 데이터센터 연구단

과학기술정통부 · KAIST InnoCORE

2026.052030.12

임상데이터 및 생체신호 기반 심장혈관 생체역학 3D 모델링-시뮬레이션 SW 개발

산업통상자원부 · 바이오산업기술개발사업

2024.062028.12

고온환경에 따른 가금산물(계란, 계육)의 신선도 및 품질 저하 방지기술 개발

농촌진흥청 · 신농업기후변화대응체계구축사업

2024.042027.12

한반도 해역에 적합한 20 MW 급 초대형 해상풍력 발전 시스템 개념설계

한국전력공사 · 사외공모 기초연구

2021.022024.01