Title: INVESTIGATION OF THE EFFECT OF IN-PLANE WAVINESS ON THE MECHANICAL BEHAVIOR OF ADDITIVE MANUFACTURED COMPOSITE LAMINATES
Authors: Sean E. Phenisee, Antonio Alessandro Deleo, Derek Shelley, Daniele Pelessone, Shawn Huff, Mark Flores, Marco Salviato
Abstract: This study presents a numerical exploration of the effect of tow in-plane waviness on the mechanical behavior of 3D printed composites. A new, discrete modeling framework (DM4C) which models the printed fiber tows explicitly with Timoshenko beams is described and utilized for this effort. To evaluate the fracture toughness of the additive manufactured composite laminate, center cracked tensile specimens with four different laminate configurations are simulated: one cross-ply laminate and three laminates with varying amplitude in sinusoidal wavy reinforcement layers. The wavy laminate with the largest amplitude showed an increase in structural strength by 25 %. Interesting toughening mechanisms are observed in the wavy laminates.
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Conference: SAMPE 2023
Publication Date: 2023/04/17
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