Glenn D. Hibbard

Biography

"Dr. Glenn D. Hibbard is currently working as a Professor in the Department of Materials Science & Engineering, University of Toronto , Canada. His research interests includes New regions of material property space can be accessed by combining microstructural design at the nm-scale, with architectural design at the μm- or mm-scale. For example, the large strength increase associated with grain size reduction to below 50 nm has driven global research efforts into the development of nanocrystalline materials. For many potential structural applications, however, the density of a nanocrystalline material is just as important as its strength. In fact, reducing the density is more important than increasing the strength for certain weight specific materials performance indices and is especially critical for applying structural nanomaterials in the aerospace and automotive sectors. We are developing a new class of structural nanomaterial where in the effective density of the parent metal is reduced by more than an order of magnitude by incorporating a periodic cellular architecture of open space. In one example a low density cellular nanocrystalline material was created by electroforming nanocrystalline Ni around a rapid prototyped acrylic photopolymer micro-truss. This new hybrid material combined the structural efficiency of micro-truss architectures with the ultra-high strength that can be achieved by grain size reduction to the nm-scale. Electrodeposited nanocrystalline material can also be used to reinforce conventional metallic micro-truss materials, creating metal/metal cellular hybrids. This approach is particularly effective because the ultra-high strength material is optimally located at the furthest distance from the neutral bending axis of the constituent micro-truss struts. The mechanical performance of these new hybrids is controlled by the interconnected network of nanocrystalline tubes.. He /she is serving as an editorial member and reviewer of several international reputed journals. Dr. Glenn D. Hibbard is the member of many international affiliations. He/ She has successfully completed his Administrative responsibilities. He /she has authored of many research articles/books related to New regions of material property space can be accessed by combining microstructural design at the nm-scale, with architectural design at the μm- or mm-scale. For example, the large strength increase associated with grain size reduction to below 50 nm has driven global research efforts into the development of nanocrystalline materials. For many potential structural applications, however, the density of a nanocrystalline material is just as important as its strength. In fact, reducing the density is more important than increasing the strength for certain weight specific materials performance indices and is especially critical for applying structural nanomaterials in the aerospace and automotive sectors. We are developing a new class of structural nanomaterial where in the effective density of the parent metal is reduced by more than an order of magnitude by incorporating a periodic cellular architecture of open space. In one example a low density cellular nanocrystalline material was created by electroforming nanocrystalline Ni around a rapid prototyped acrylic photopolymer micro-truss. This new hybrid material combined the structural efficiency of micro-truss architectures with the ultra-high strength that can be achieved by grain size reduction to the nm-scale. Electrodeposited nanocrystalline material can also be used to reinforce conventional metallic micro-truss materials, creating metal/metal cellular hybrids. This approach is particularly effective because the ultra-high strength material is optimally located at the furthest distance from the neutral bending axis of the constituent micro-truss struts. The mechanical performance of these new hybrids is controlled by the interconnected network of nanocrystalline tubes.. " "Dr. Glenn D. Hibbard is currently working as a Professor in the Department of Materials Science & Engineering, University of Toronto , Canada. His research interests includes New regions of material property space can be accessed by combining microstructural design at the nm-scale, with architectural design at the μm- or mm-scale. For example, the large strength increase associated with grain size reduction to below 50 nm has driven global research efforts into the development of nanocrystalline materials. For many potential structural applications, however, the density of a nanocrystalline material is just as important as its strength. In fact, reducing the density is more important than increasing the strength for certain weight specific materials performance indices and is especially critical for applying structural nanomaterials in the aerospace and automotive sectors. We are developing a new class of structural nanomaterial where in the effective density of the parent metal is reduced by more than an order of magnitude by incorporating a periodic cellular architecture of open space. In one example a low density cellular nanocrystalline material was created by electroforming nanocrystalline Ni around a rapid prototyped acrylic photopolymer micro-truss. This new hybrid material combined the structural efficiency of micro-truss architectures with the ultra-high strength that can be achieved by grain size reduction to the nm-scale. Electrodeposited nanocrystalline material can also be used to reinforce conventional metallic micro-truss materials, creating metal/metal cellular hybrids. This approach is particularly effective because the ultra-high strength material is optimally located at the furthest distance from the neutral bending axis of the constituent micro-truss struts. The mechanical performance of these new hybrids is controlled by the interconnected network of nanocrystalline tubes.. He /she is serving as an editorial member and reviewer of several international reputed journals. Dr. Glenn D. Hibbard is the member of many international affiliations. He/ She has successfully completed his Administrative responsibilities. He /she has authored of many research articles/books related to New regions of material property space can be accessed by combining microstructural design at the nm-scale, with architectural design at the μm- or mm-scale. For example, the large strength increase associated with grain size reduction to below 50 nm has driven global research efforts into the development of nanocrystalline materials. For many potential structural applications, however, the density of a nanocrystalline material is just as important as its strength. In fact, reducing the density is more important than increasing the strength for certain weight specific materials performance indices and is especially critical for applying structural nanomaterials in the aerospace and automotive sectors. We are developing a new class of structural nanomaterial where in the effective density of the parent metal is reduced by more than an order of magnitude by incorporating a periodic cellular architecture of open space. In one example a low density cellular nanocrystalline material was created by electroforming nanocrystalline Ni around a rapid prototyped acrylic photopolymer micro-truss. This new hybrid material combined the structural efficiency of micro-truss architectures with the ultra-high strength that can be achieved by grain size reduction to the nm-scale. Electrodeposited nanocrystalline material can also be used to reinforce conventional metallic micro-truss materials, creating metal/metal cellular hybrids. This approach is particularly effective because the ultra-high strength material is optimally located at the furthest distance from the neutral bending axis of the constituent micro-truss struts. The mechanical performance of these new hybrids is controlled by the interconnected network of nanocrystalline tubes.. "

Research Interest

"New regions of material property space can be accessed by combining microstructural design at the nm-scale, with architectural design at the μm- or mm-scale. For example, the large strength increase associated with grain size reduction to below 50 nm has driven global research efforts into the development of nanocrystalline materials. For many potential structural applications, however, the density of a nanocrystalline material is just as important as its strength. In fact, reducing the density is more important than increasing the strength for certain weight specific materials performance indices and is especially critical for applying structural nanomaterials in the aerospace and automotive sectors. We are developing a new class of structural nanomaterial where in the effective density of the parent metal is reduced by more than an order of magnitude by incorporating a periodic cellular architecture of open space. In one example a low density cellular nanocrystalline material was created by electroforming nanocrystalline Ni around a rapid prototyped acrylic photopolymer micro-truss. This new hybrid material combined the structural efficiency of micro-truss architectures with the ultra-high strength that can be achieved by grain size reduction to the nm-scale. Electrodeposited nanocrystalline material can also be used to reinforce conventional metallic micro-truss materials, creating metal/metal cellular hybrids. This approach is particularly effective because the ultra-high strength material is optimally located at the furthest distance from the neutral bending axis of the constituent micro-truss struts. The mechanical performance of these new hybrids is controlled by the interconnected network of nanocrystalline tubes."