Mechanical Properties of 3-D Printed Cellular Foams with triangular cells |
Posted on:2015-08-08 | Degree:M.S | Type:Thesis |
University:State University of New York at Stony Brook | Candidate:Bunga, Pratap Kumar | Full Text:PDF |
GTID:2471390017490615 | Subject:Engineering |
Abstract/Summary: | |
In the present work, poly lactic acid (PLA) is used as a model system to investigate the mechanical behavior of 3-D printed foams with triangular cells. Solid PLA tension and compression specimens and foams made of PLA were fabricated using fused deposition 3-D printing technique. The solid PLA tension specimens were characterized for their densities and found to be about 10% lower in density as compared to their bulk counter parts. The triangular foams had a relative density of about 64%. The relationships between the structure of the foams and its deformation behavior under compression along two in-plane directions were characterized. Furthermore, simple finite element models were developed to understand the observed deformation behavior of triangular foams. |
Keywords/Search Tags: | Foams, PLA, Triangular, 3-D, Behavior |
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