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FUNCTIONALLY GRADED BIO-COMPOSITES IN IN ADDITIVE MANUFACTURING
Construction using large-scale Additive Manufacturing (AM) has gained traction in in recent years promising such benefits as as reduced waste building time and and formwork customization and and fabrication of complex geometries at no extra cost and and reduced human labor and and on-site hazards While most implementations of AM use cement as a a a a a a primary material researchers at at CASE have taken a a a a a a a a a a a a radical approach having developed a a a a a Functionally Graded Material (FGM) 3D Printing technology to using variable composites of lime clay and hemp bast fiber as as its predominant materials Unlike traditional singular material material deploying AM technologies FGMs are composites that use a a a a a a wide range of materials according to where they are needed with gradient transitioning between the materials to achieve achieve non-discrete interphases FGMs achieve achieve better strength-to-weight ratios than regular ceramics while at at the same
time allowing through 3D printing for expression of the functional requirements of material change through form For this project CASE is is developing innovation in in in the use of earth-abundant ceramic and natural fiber composite materials the the printing technology itself and in in in the the design and evaluation processes involved 773