Polymers, Free Full-Text
We investigate the compressive energy absorption performance of polymeric octet-truss lattice structures that are 3D printed using high-resolution stereolithography. These structures are potential candidates for personal protective equipment, structural, and automotive applications. Two polymeric resins (high-strength/low-ductility and moderate-strength/high-ductility) were used in this work, and a comprehensive uniaxial tensile characterization was conducted to establish an optimal UV curing time. The external octet-truss structure geometry (3″ × 3″ × 3″) was maintained, and four different lattice cell densities (strut length, L) and three different strut radii (R) were printed, UV cured, and compression tested. The compressive stress–strain and energy absorption (EA) behavior were quantified, and the EA at 0.5 strain for the least dense and smallest R structure was 0.02 MJ/m3, while the highest density structure with the largest R was 1.80 MJ/m3 for Resin 2. The structural failure modes varied drastically based on resin type, and it was shown that EA and deformation behavior were related to L, R, and the structures’ relative density (ρ¯). For the ductile resin, an empirical model was developed to predict the EA vs. compressive strain curves based on L and R. This model can be used to design an octet-truss lattice structure based on the EA requirements of an application.
Polymers, Free Full-Text
Carbohydrate Polymers 2002: Vol 47 Table of Contents : Free Download, Borrow, and Streaming : Internet Archive
Polymers, Free Full-Text, nmm2 values
Polymers, Free Full-Text
Polymers, Free Full-Text
Polymers, Free Full-Text, analyses
Membranes with artificial free-volume for biofuel production
Polymers, Free Full-Text, passfeder 4mm
AMOLF Institutional Repository: Biological polymers : confined, bent, and driven
Polymers, Free Full-Text, passfeder 5mm
Polymers, Free Full-Text
Polymers
Carbohydrate Polymers 2002: Vol 49 Table of Contents : Free Download, Borrow, and Streaming : Internet Archive
Polymers, Free Full-Text, benny watts x reader
Polymers, Free Full-Text