In this study we investigated how microdamage accumulated with increasing compressive strain in bovine trabecular bone. We found that little damage is created in the linear elastic region, up to −0.4 percent strain. At an average strain of the stress-strain curve became nonlinear, and peaked at strain. Microdamage increases rapidly during the peak of the stress-strain curve, and a localized band of damage formed. At strains beyond the ultimate strain, the damaged band widened and the density of damage within the band increased. Microdamage occurred as groupings of cracks; the majority of damage occurred as regions of cross-hatching. All microdamage parameters increased with increasing maximum compressive strain. We also observed exponential relationships between crack numerical density and damage and between crack length density and damage.
Microdamage Accumulation in Bovine Trabecular Bone in Uniaxial Compression
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division August 29, 2000; revised manuscript received October 2, 2001. Associate Editor: Charles H. Turner.
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Moore, T. L. A., and Gibson, L. J. (October 2, 2001). "Microdamage Accumulation in Bovine Trabecular Bone in Uniaxial Compression ." ASME. J Biomech Eng. February 2002; 124(1): 63–71. https://doi.org/10.1115/1.1428745
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