By L. Ambrosio
Biocomposites are regularly occurring within the clinical to fix bone, cartilage, ligaments, and tendons. This booklet offers a radical assessment of the present scenario, contemporary development, and destiny tendencies in composites for biomedical functions. It concentrates at the study and functions of this more and more renowned family members of fabrics. The publication starts off with an creation to the cloth, targeting the homes, fabrication and layout of composites. It then discusses specific purposes and biocompatibility of biocomposites. the ultimate workforce of chapters analyses the mechanical habit and failure of biocomposites and their destiny power.
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Additional resources for Biomedical Composites (Woodhead Publishing in Materials)
Vincentelli r, grigorov m (1985), ‘The effect of Haversian remodeling on the tensile properties of human cortical bone’, Journal of Biomechanics 18:201–207. weiner s, arad t, sabanay i, traub w (1997), ‘Rotated plywood structure of primary lamellar bone in the rat: orientations of the collagen fibril arrays’, Bone 20:509–514. weiner s, wagner hd (1998), ‘The material bone: structure–mechanical function relations’, Annual Reviews of Material Science 28:271–298. weiner s, traub w, wagner hd (1999), ‘Lamellar bone: structure–function relations’, Journal of Structural Biology 126:241–255.
In a physiological environment, AC has to sustain loads that are transmitted between adjacent joint surfaces. Owing to its peculiar shape and microarchitecture, it experiences locally complex and contextual stress states, such as compression, shear and tension (Mow and Guo, 2002). Compressive stresses induce a relative movement between the fluid (collagen) and solid (proteoglycan network) phases. Such movement, of course, introduces timedependent phenomena and dissipates large amounts of energy, owing to the high frictional forces involved in this mechanism.
Therefore, bone specimens are usually shaped in the form of rods or beams, in order to reduce the effects of the above-mentioned parameters on the evaluation of relevant mechanical parameter. , 1997). Natural composites 9 The mechanical properties of cancellous bone are mainly determined by using tension, compression and bending tests. The values of both tensile strength and elastic modulus of cancellous bone are much lower than the corresponding values for cortical bone. , 1989). Several intrinsic factors affect the mechanical properties of both cortical and cancellous bone.