International Journal Papers
[Under review]
Seunghhyeon Mun, Yubynn Bae, Hyundo Noh, Chang-Whan LEE, "Image-Based Surrogate Modeling and Inverse Optimization for Optimal Die Design in the Forming Process of the Hat-section", Engineering Applications of Artificial Intelligence
-2026
54. Hyun-Do Noh, Seung-Hyeon Mun, Yubynn Bae, Wan-Jin Chung, Chang Whan Lee, Prediction of Deformed Shape and Die Optimization for Hat-Section Forming Using a Scalar-based ANN Surrogate and Genetic Algorithm, J. Korean Soc. Precis. Eng, Accepted for publication
53. Seong-Min Cho, Ki-Chul Park, Chang-Whan LEE, and Wan-Jin Chung, "Optimization of variable blank holding force conditions for improvement of formability in the cylindrical cup drawing process using a reinforcement learning algorithm", International Journal of Precision Engineering and Manufacturing-Green Technology , Accepted for publication
52. In-Gyu Choi, Jae-Hyeong Yu,· Jung-Sik Yoon, John S. Kang, Chang-Whan Lee, Characterization of acoustic emission signals in single point incremental forming (SPIF) process of AZ31B, The International Journal of Advanced Manufacturing Technology, https://doi.org/10.1007/s00170-026-17797-0
-2025
51. Yujin Cho, Hanbyeol Pak, Chang-Whan Lee, Jeong-Hyun Kim, "Velocity measurements in single and parallel channels using concentration changes in aqueous methylene blue solution", International Journal of Hydrogen Energy, Vol. 145(7), pp. 761-771, https://doi.org/10.1016/j.ijhydene.2025.06.084
50. Xiaowei Zuo, Nicholas Satterlee, Chang-Whan Lee, In-Gyu Choi, Choon-Wook Park, John S. Kang, "Feature-informed machine learning for detecting material deformation and failure in aluminum pipes under bending load using acoustic emission sensors", Materials & Design, https://doi.org/10.1016/j.matdes.2025.114087
49. Nicholas Satterlee, Xiaowei Zuo, Chang-Whan Lee, Choon-Wook Park, John S Kang, "Parallel multi-layer sensor fusion for pipe leak detection using multi-sensors and machine learning", Engineering Applications of Artificial Intelligence, vol. 153, pp. 110923, https://doi.org/10.1016/j.engappai.2025.110923
48. Jae-Hyeong YU, In-Gyu Choi, Jung-Sik Yoon, John S. Kang, Wan-Jin Chung, and Changwhan LEE, "Analysis of acoustic emission signals during bending deformation of magnesium alloy sheet", Nondestructive Testing and Evaluation, https://doi.org/10.1080/10589759.2025.2496433
47. Kyu-Seok Jung, Young-Bae Jeon, Jung-Sik Yoon, Sung-Pil Yoon, Chang-Whan LEE (2025), "Simulation of molten carbonate fuel cell with dry reforming of methane (DR-MCFC)", Energies, https://doi.org/10.3390/en18071863
-2024
46. Eun-Bin Mok, Jung-Sik Yoon, Chang-Dae Kim. Seung-Wook Baek, Wan-jin Chung, Chang-Whan LEE* (2024). Measurement of bending deformation of sheet metal using machine vision. International Journal of Computer Integrated Manufacturing, 1-20., https://doi.org/10.1080/0951192X.2024.2397818
45. Jae-Hyeong Yu, Jung-Sik Yoon, In-Gyu Choi, John S Kang, Wan-Jin Chung, Chang-Whan LEE*, "Analysis and Clustering of Acoustic Emission Signals in the Tensile Deformation of AZ31B", Metals and Materials International, https://doi.org/10.1007/s12540-024-01771-0
44. Chang-Dae Kim. Seung-Wook Baek, Wan-jin Chung, Chang-Whan LEE* (2024). Defect Detection in the Forging Process of Wheel Nut Products through Object Detection. Journal of the Korean Society for Precision Engineering, 41(4), 279-286.
43. Young-Bae Jun, Jeong-Hyun Park, Hyun-Soo Kim, Kyu-Seok Jung, Sung-Pil Yoon, Chang-Whan LEE*, A simulation model for ruthenium-catalyzed dry reforming of methane (DRM) at different temperatures and gas compositions, International Journal of Hydrogen Energy, 2024, vol. 49, pp. 786-797, https://doi.org/10.1016/j.ijhydene.2023.07.199.
-2023
42. 손현명, Chang-Whan LEE, 윤석호, 이기호, 류민영, "Mechanical Properties at Room and Elevated Temperatures According to the Thickness Ratio of Coextruded Film Using Polycarbonate and Acrylic Resin", Polymer Korea, Vol. 47, no. 6, pp. 757-765
41. Mohanraj Murugesan, Jae-Hyeong Yu, Wan-Jin Chung and Chang-Whan LEE*, Hybrid Artificial Neural Network-Based Models to Investigate Deformation Behavior of AZ31B Magnesium Alloy at Warm Tensile Deformation, Materials 16(15), 5308, 2023, https://doi.org/10.3390/ma16155308
40. Mohanraj Murugesan, Jae-Hyeong Yu, Wan-Jin Chung and Chang-Whan LEE*, Warm Deformation Behavior and Flow Stress Modeling of AZ31B Magnesium Alloy under Tensile Deformation, Materials, 16(14) 5088, 2023, https://doi.org/10.3390/ma16145088
39. Mohanraj Murugesan, Hyung-Won Youn, Jae-Hyeong Yu, Wan-Jin Chung and Chang-Whan LEE*, Formability enhancement and deformation characteristics on controlling pillow defect during vacuum-assisted incremental sheet forming process, International Journal of Advanced Manufacturing Technology, vol. 127, pp. 5531-5551, 2023, https://doi.org/10.1007/s00170-023-11854-8
38. Yun-Chan Chung, YU Jae-Hyeong, Kyu-Seok Jung, Yong-Ho Song, Young-Bae Jeon, Young-Jae Kim, Sung-Min Jun, Sung-Oh Kwon, Chang-Whan LEE*, Effects of the material properties and thickness on the minimum formable radius in the subtle feature forming process, Heliyon, vol. 9, e14757, 2023, https://doi.org/10.1016/j.heliyon.2023.e14757
37. Kyu-Seok Jung, Kai Zhang and Chang-Whan Lee*, "Simulation of Internal Manifold-Type Molten Carbonate Fuel Cells (MCFCs) with Different Operating Conditions", Energies, 16(6), 2700, https://doi.org/10.3390/en16062700
36. Jae-Hyeong Yu, Kyu-Seok Jung, Yun-Chan Chung, and Chang-Whan Lee*, “A Study on the Prediction Model of the Radius of Curvature of the Subtle Feature of the Automotive Parts for Different Forming Conditions”, J. of the Korean Society for Precision Engineering, vol. 40, No. 1, pp. 49-55, http://doi.org/10.7736/JKSPE.022.101
35. Yong-Ho Song, So-Chan An-, Jae-Hyeong Yu, Wan-Jin Chung, and Chang-Whan Lee*, Analysis of Acoustic Emission (AE) Signal Characteristics of the Magnesium Alloy Sheet (AZ31B) in the Tensile Deformation, J. of the Korean Society for Precision Engineering, vol. 40, No. 1, pp. 39-47, http://doi.org/10.7736/JKSPE.022.091
-2022
34. Jae-Hyeong Yu, Kyu-Seok Jung, Mohanraj Murugesan, Wan-Jin Chung, Chang-Whan Lee*, “Study in the incremental sheet metal forming process using a metal foam as a die”, International Journal of Material Forming, Vol. 15, 71, https://doi.org/10.1007/s12289-022-01716-1
33. Chang-Whan LEE, Yun-Chan CHUNG, Curve-Fitting Algorithm for the Inspection of Subtle Feature Lines on Automotive Outer Panels, Materials, Vol. 15, No. 8, 6323; https://doi.org/10.3390/ma15186323
32. Mohanraj Murugesan, Jae-Hyeong Yu, Kyu-Seok Jung, Sung-Min Cho, Krishna Singh Bhandari, Wanjin Chung, Chang-Whan Lee*, “Supervised Machine Learning Approach for Modeling Hot Deformation Behavior of Medium Carbon Steel”, Steel Research International, 2200188, https://doi.org/10.1002/srin.202200188
31. Mohanraj Murugesan, Jae-Hyeong Yu, Kyu-Seok Jung, Sung-Min Cho, Krishna Singh Bhandari, Chang-Whan Lee*, “Optimization of Forming Parameters in Incremental Sheet Forming of AA3003-H18 Sheets Using Taguchi Method", Materials, Vol. 15, No. 4, 1458, https://doi.org/10.3390/ma15041458
-2021
30. Hyung-Won Youn, Jun-Hyun Kyeong, Keun Park, Chang-Whan LEE* (2021), Analysis on the Warm Bending Process of Magnesium Alloy Sheet Using Additively Manufactured Polymer Die-Set, J. of the Korean Society for Precision Engineering, vol. 38, No. 10, pp. 775-783
29. Chang-Whan Lee, Dong-Jun Kim, Sung-Kwon Kim, Kyu-Ho Sim (2021), "Design Optimization of Flexure Springs for Free-Piston Stirling Engines and Experimental Evaluations with Fatigue Testing", Energies, Vol. 14, https://doi.org/10.3390/en14165156
28. Jae-Hyung YU, Chang-Whan LEE (2021), "Study on the Time-Dependent Mechanical Behavior and Springback of Magnesium Alloy Sheet (AZ31B) in Warm Conditions", Materials, Vol. 14, https://doi.org/10.3390/ma14143856
27. Chang-Whan LEE, Jae-Hyung YU, Hyung Won Youn, Yunchan Chung (2021), "THE MINIMUM FORMABLE RADIUS OF SUBTLE FEATURE LINES IN AUTOMOTIVE OUTER PANEL STAMPING", International Journal of Automotive Technology, Vol. 22, No. 4, pp. 993-1001, https://doi.org/10.1007/s12239-021-0089-0
-2020
26. Kyu-Seok Jung, Jae-Hyeong Yu, Wan-Jin Chung, Chang-Whan Lee (2020), "Analysis of the section deflection in the incremental sheet metal forming process of the circular cup shape according to the cup geometry", J. of the Korean Society for Precision Engineering, Vol. 37, No. 9, pp. 675-683
25. Kyu-Seok Jung, Sung-Min Cho, Jae-Hyeong Yu, Yo-Han Yoo, Jong-Bong Kim, Wan-Jin Chung, Chang-Whan Lee (2020) "Optimization Design of Penetrator Geometry Using Artificial Neural Network and Genetic Algorithm", J. of the Korean Society for Precision Engineering, Vol. 37, No. 6, pp. 429-436
24. Taek Jin Jang, Jong-Bong Kim, Seok Bong Kim, Chang-Whan LEE (2020), Penetration Depth of High-velocity Projectiles for Geomaterials through an Empirical Equation, vol. 44, no. 5, pp. 383-390
23. Jae-Hyeong Yu， Chang-Whan Lee (2020), "Analysis of Springback Characteristics of Magnesium Alloy Sheet (AZ31B) Considering Time-Dependence in Warm Bending", J. of the Korean Society for Precision Engineering, Vol. 37, No. 3, pp. 201-207
22. Kyu-Seok Jung, Jae-Hyung Yu, Wan-Jin Chung, Chang-Whan LEE (2020), "Tool Path Design of the Counter Single Point Incremental Forming Process to Decrease Shape Error", Materials, Vol. 13, No. 21, https://doi.org/10.3390/ma13214719
21. Khac-Ha Nguyen, Chang-Whan LEE, Hyunho Shin, Joo Hyoung Lee, Jong-Bong KIM (2020), "A Study on the effect of specimen geometry on the measurement accuracy of dynamic constitutive properties of metals using SHTB ", International Journal of Precision Engineering and Manufacturing, https://doi.org/10.1007/s12541-020-00368-y
20. Chang-Whan LEE, Dong-Yol YANG (2020), "Study on the formability of magnesium alloy sheets in the incremental forming process with external heating sources", International Journal of Precision Engineering and Manufacturing, https://doi.org/10.1007/s12541-020-00352-6
19. Jae-Hyung YU and Chang-Whan LEE, Effect of Cell Size on the Performance and Temperature Distribution of Molten Carbonate Fuel Cells, Energies, 13(6), 1361; https://doi.org/10.3390/en13061361
-2019-
18. Yo-Han YOO, Jong-Bong KIM, Chang-Whan LEE (2019), "Effects of the projectile geometries on normal and oblique penetration using the finite cavity pressure method ", Applied Sciences, 9(18), 3939.
17. Piemaan Fazily, Jaehyung Yu, Chang-Whan LEE (2019), "Characterization of sheared edges in warm blanking of magnesium alloy AZ31B", Materials, 12(7), 1203.
- 2018 -
16. Chang-Whan LEE, Jaehyung Yu, Hyun-Woo KIM, Bo-Hyun RYU (2018), "Effect of the Size of Molten Carbonate Fuel Cells on the Temperature Distribution, Key Engineering Materials, Vol. 773, pp. 118-122
15. Dong-Yol Yang, M. Bambach, J. Cao, J. R. Duflou, P. Groche, T. Kuboki, A. Sterzing, A. E. Tekkaya, Chang-Whan Lee, "Flexibility in metal forming", CIRP Annals, Vol. 67 No. 2, pp. 743-765.
14. Chang-Whan Lee, Mihui Lee, Min-Goo Kang, Hyung-Chul Ham, Sing-Pil Yoon, Jonghee Han, Ki Bong LEE (2018), “Fabrication and operation characteristics of electrolyte impregnated matrix and cathode for molten carbonate fuel cells”, International Journal of Precision Engineering and Manufacturing – Green Technology, Vol. 5, No. 2, pp. 279-286.
- 2017 -
13. Chang-Whan Lee, Mihui Lee, Sun Hee Choi, Sung-Pil Yoon, Hyung Chul Ham, Suk Woo Nam, Dong-Yol Yang, (2017). “Study on the effect of the current collector structure on the performance of MCFCs using three-dimensional fluid dynamics analysis”, Journal of Industrial and Engineering Chemistry, Vol. 51, pp. 153–161.
12. Mihui LEE, Chang-Whan LEE, Hyung-Chul Ham, Jonghee Han, Sung-Pil Yoon, Ki Bong LEE (2017), , “Mechanical Strength Improvement of Aluminum Foam-Reinforced Matrix for Molten Carbonate Fuel Cells”, International Journal of Hydrogen Energy, Vol. 42(25), pp. 16235-16243
11. Chang-Whan Lee, Byeong Wan Kwon, Min-Goo Kang, Hyung Chul Ham, Sung-Pil Yoon, Jonghee Han, Yong-Jin Kim, Min-Chul Lee (2017), "Improved performance of molten carbonate fuel cells with (Li/Na) 2 CO 3 electrolytes by using BYS coated cathode at low operating temperatures", International Journal of Hydrogen Energy, Vol. 42(29), pp. 18514-18523
- 2016 -
10. Chang-Whan Lee, Dong-Yol Yang, Sung-Pil Yoon, Hyung Chul Ham, (2016), “A new levelling process using skew-arranged roll sets for the doubly-curved plate”, International Journal of Precision Engineering and Manufacturing, Vol. 17, No. 10, pp. 1275-1284.
9. Min Goo Kang*, Chang-Whan Lee*, Han Sae Dong, Seong-Cheol Jang, Shin Ae Song, Hyun Seo Park, Sun Hee Choi, Hyung Chul Ham, Jonghee Han, Suk Woo Nam, Sung Hyun Kim, Sung Pil Yoon, (2016). “Effects of vibrations in marine environments on performance of molten-carbonate fuel cells ”, International Journal of Hydrogen Energy, Vol. 41, No. 41, pp. 18732-18738.
8. Chang-Whan Lee, Mihui Lee, Min-Jae Lee, Seong-Cheol Chang, Sung-Pil Yoon, Hyung Chul Ham, Jonghee Han, (2016). “Effect of the flow directions on a 100 cm2 MCFC single cell with internal flow channels”, International Journal of Hydrogen Energy, Vol. 41, No. 41, pp. 18747-18760.
7. Hyun Koo Kim*, Chang-Whan Lee*, Minsoo Kim, Joo Hyeng Oh, Shin Ae Song, Sung Cheol Jang, Jonghee Han, Sung Pil Yoon, Suk Woo Nam, Dae-Ki Choi, Yong-gun Shul, and Hyung Chul Ham, (2016). “Preparation of CoMo/Al2O3, CoMo/CeO2, CoMo/TiO2 catalysts using ultrasonic spray pyrolysis for the hydro-desulfurization of 4, 6-Dimethyldibenzothiophene for molten carbonate fuel cell application”, International Journal of Hydrogen Energy, Vol. 41, No. 41, pp. 18846-18857.
6. Chang-Whan Lee, Dong-Yol Yang, (2016). “Effect of the size of the sheet with sheared protrusions on the deformed shape after spring back”, Materials & Design, Vol. 95, pp. 348-357
- Before 2015 –
5. Chang-Whan Lee, Dong-Yol Yang, (2014). “Non-uniform fracture in three-stage forming process of sheared protrusion for current collector of molten carbonate fuel cells”, Procedia Engineering, Vol. 81, pp. 1151-1156.
4. Chang-Whan Lee, Dong-Yol Yang, Jong-seung Park, Yun-sung Kim, Tae-won Lee, (2014). “Investigation into mechanical behavior of the current collector for the molten carbonate fuel cell through finite element analysis using hexahedral mesh coarsening”, Journal of Fuel Cell Science and Technology, Vol. 11(6), pp. 061005-01 – 061005-10.
3. Eun-Ho Lee, June-Sun Hwang, Chang-Whan Lee, Dong-Yol Yang, Woo-Ho Yang, (2014), “A local heating method by near-infrared rays for forming of non-quenchable advanced high-strength steels”, Journal of Material Processing Technology, vol. 214(4), pp. 784-793.
2. Chang-Whan Lee, Dong-Yol Yang, Dong-Woo Kang, Tae-Won Lee, (2014). “Study on the levelling process of the current collector for the molten carbonate fuel cell based on curvature integration method”, International Journal of Hydrogen Energy, Vol. 39(12), pp. 6714-6728
1. Chang-Whan Lee, Dong-Yol Yang, Dong-Woo Kang, In-Gab Chang, Tae-Won LEE, (2011). “Anisotropic behavior and homogenization of the shielded slot plate for the molten carbonate fuel cell”, Steel Research international, Special Edition, pp. 1102-1107
(* Equally contributed)
International Papents
1. Sung Pil Yoon, Jonghee Han, Hyung Chul Ham, Chang Won Yoon, Sun-Hee Choi, Hyun Seo Park, Yeong Cheon Kim, LEE Chang-Whan, Hyoung-Juhn Kim, Tae Hoon Lim, Suk Woo Nam, Seong Cheol Jang. (2018). "Method for supplying molten carbonate fuel cell with electrolyte and molten carbonate fuel cell using the same", US patents 15/675,233