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1	Fracture properties of balsa wood and balsa core sandwich composites Shir Mohammadi, Meisam 14 June 2012 (has links) Favorable properties of Balsa wood make it an interesting alternative in a number of applications including thermal insulation or as a lightweight core material in sandwich composites. Increasing use in construction necessitates a better understanding of its mechanical and failure properties. In the present work, mode I and mode II fracture toughness for different types of balsa wood and a sandwich structure (balsa as core and fiber glass as skin layer) are studied experimentally by using load-displacement diagrams and visually acquired crack growth data. / Graduation date: 2013 Balsa wood Sandwich composite Fracture properties Crack propagation fiber bridging Engineered wood -- Mechanical properties Engineered wood -- Fracture Balsa wood -- Mechanical properties Balsa wood -- Fracture Sandwich construction