کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
811582 1469162 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Are tensile and compressive Young’s moduli of compact bone different?
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی پزشکی
پیش نمایش صفحه اول مقاله
Are tensile and compressive Young’s moduli of compact bone different?
چکیده انگلیسی

This study examines the question of whether the stiffness (Young’s modulus) of secondary osteonal cortical bone is different in compression and tension. Electronic speckle pattern interferometry (ESPI) is used to measure concurrently the compressive and tensile strains in cortical bone beams tested in bending. ESPI is a non-contact method of measuring surface deformations over the entire region of interest of a specimen, tested wet. The measured strain distributions across the beam, and the determination of the location of the neutral axis, demonstrate in a statistically-robust way that the tensile Young’s modulus is slightly (6%), but significantly greater than that of the compressive Young’s modulus. It is also shown that within a relatively small bone specimen there are considerable variations in the modulus, presumably caused by structural inhomogeneities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanical Behavior of Biomedical Materials - Volume 2, Issue 1, January 2009, Pages 51–60
نویسندگان
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