▶ G.R.I.D. (Global Researchers in Dialogue)

KIAT US Office 에서 지원하는 글로벌 연구자들과의 대화 시리즈 입니다. 한-미 산학연 간의 네트워크를 구축하고, 공동 R&D를 희망하시는 분들의 많은 참여를 부탁드립니다.  

This is a series of Dialogue supported by the KIAT US Office with global researchers. We invite everyone interested in building networks between Korean and U.S. academia, industry, and research institutes, as well as those seeking joint R&D opportunities, to actively participate.

Physics Based Digital Twin Simulation Driven Fiber-Reinforced Composites Additive Manufacturing for Tooling Application

본 웨비나는 퍼듀대학교의 김가람 교수님을 모시고, 섬유강화 열가소성 소재를 활용한 대형 적층제조(LSAM)를 소개하며, 대형 복합재 금형을 신속하게 제작하는 기술을 다룹니다. 또한 이방성, 잔류응력, 층간 박리와 같은 주요 문제를 설명하고, 이를 예측 및 보정하여 최대 180°C 환경에서도 성능을 향상시키는 ADDITIVE3D 디지털 트윈 기술을 소개합니다.

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Webinar

 Tuesday, April 23, 20:10 (EST) 

 2026년 4월 24일, 금요일, 오전 9:10 (한국) 

Dr. Garam Kim 

Webinar Abstract

The Large-Scale Additive Manufacturing (LSAM) process is a form of Extrusion Deposition Additive Manufacturing (EDAM) that uses fiber-reinforced thermoplastics to achieve deposition rates of up to 220 kg/hr. This enables the rapid fabrication of multi-meter long tooling for producing composite parts in the aerospace, automotive, wind energy, and marine industries. However, the intrinsic characteristics of fiber-reinforced composite materials, which are highly anisotropic, and the non-isothermal nature of additive manufacturing produce stresses that can lead to deformation and delamination of the printed geometry. This challenge motivated the development of a physics-based virtual twin for additive manufacturing, ADDITIVE3D, which predicts residual stresses, deformation, interlayer bonding, and potential delamination. Additionally, this virtual twin enables the investigation of the performance of the as-printed state, considering effects such as residual stresses, global material orientation, and interlayer bonding developed during printing. Predicting and compensating for shape changes due to printing, machining, and during the operation of printed autoclave tooling at temperatures of up to 180°C is of paramount importance for the successful implementation of this technology.

Speaker

Dr. Garam Kim is an Assistant Professor in the School of Aviation and Transportation Technology at Purdue University’s Polytechnic Institute. He completed his bachelor’s, master’s, and Ph.D. degrees in the same school at Purdue University. Dr. Kim co-manages the Composites Manufacturing and Simulation Center (CMSC) and the Raisbeck Advanced Composite Laboratory (RACL) with Dr. Byron Pipes and Dr. Ronald Sterkenburg. He has approximately 10 years of experience in the manufacturing, testing, and characterization of fiber-reinforced composite structures. His research has covered a wide range of topics, including additive manufacturing, surface coatings, composite machining methods and process optimization, structural testing, mechanical and thermal property analysis, and advanced composite manufacturing technologies. He has led multiple projects in collaboration with industry partners and research organizations. Dr. Kim is a certificated FAA Airframe & Powerplant (A&P) mechanic and previously served as an aircraft maintenance technician in the Republic of Korea Air Force. He primarily worked on J85 and F404 engines and holds multiple aircraft maintenance certifications.