Jin-Hwe Kweon

TL;DR: In this article, a new approach to model surface roughness in fused deposition modeling (FDM) is proposed, which is based on real-world FDM parts and a theoretical model is presented by considering the main factors that crucially affect surface quality.

TL;DR: In this paper, composite-to-aluminum double lap joints were tested to obtain the failure loads and modes for three types of joints: adhesive bonding, bolt fastening and adhesive-bolt hybrid joining.

TL;DR: In this article, a parametric study on adhesively bonded carbon composite-to-aluminum single-lap joints was conducted and the effects of various parameters, such as bonding pressure, overlap length, adherend thickness, and material type, on the failure load and failure mode of joints with dissimilar materials.

TL;DR: The buckling and failure characteristics of moderately thick-walled filament-wound carbon-epoxy composite cylinders under external hydrostatic pressure were investigated through finite element analysis and testing for underwater vehicle applications as mentioned in this paper.

TL;DR: In this paper, a meso-scale finite element modeling of Nomex honeycomb cores is proposed to account for strain gage local stiffening effects and thickness normalization, and the cell wall material properties are implemented in a honeycomb core finite element model and further calibrated by matching simulation results to manufacturer test data.