Experimental Mechanics
Experimental Mechanics
Theme 1
Mechanical properties and formability of Li-ion battery pouch
박중현A reliable failure prediction framework for aluminum-polymer laminated pouch films that integrates experimental ductile fracture criteria into finite element simulations to prevent manufacturing defects.
What we do
- Investigate the complex and inhomogeneous deformation behavior of multi-layered pouch films (PET/PA/Al/PP) during the deep-drawing and forming processes.
- Establish a localized ductile fracture criterion by correlating experimental minor/major strain data with Digital Image Correlation (DIC) and FE analysis.
- Develop a numerical prediction model to identify and mitigate structural vulnerabilities, such as corner cracks, ensuring the long-term stability of battery packaging.
Representative Publications
DOI
Theme 2
A study on galling behavior of stainless steel sheet metal forming
문지환A tribological investigation that characterizes the galling behavior and wear mechanisms of stainless steel forming by analyzing interactions across various tool interfaces and surface topologies.
What we do
- Analyze the influence of different tool materials and coatings, such as TiAlN-coated and copper alloys, on the frictional behavior and durability during sheet metal forming.
- Characterize and distinguish between adhesive and abrasive wear mechanisms through advanced surface roughness profiling and scanning electron microscopy (SEM).
- Identify critical failure modes and transition points from debris generation to severe galling to optimize tooling strategies and extend tool life in industrial environments.