Advances in biomechanics and applications

  • 제1권3호
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  • Pages.211-225
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  • 2014
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  • 2287-2094(pISSN)
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  • 2287-2272(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

A simplified theory of adaptive bone elastic beam buckling

  • Ramtani, Salah (Laboratoire CSPBAT-LBPS UMR 7244 CNRS Universite Paris-Nord, Institut Galilee) ;
  • Bennaceur, Hamza (Laboratoire Mecanique des Structures et Materiaux Universite de Batna, Departement de Mecanique, Faculte de technologie) ;
  • Outtas, Toufik (Laboratoire Mecanique des Structures et Materiaux Universite de Batna, Departement de Mecanique, Faculte de technologie)
  • 투고 : 2014.02.12
  • 심사 : 2014.09.30
  • 발행 : 2014.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

The usual assumption that the increase of fractures in aging bone is due entirely to lower bone density is taken back with respect to the possibility that aging bone fractures result from a loss of stability, or buckling, in the structure of the bone lattice. Buckling is an instability mode that becomes likely in end-loaded structures when they become too slender and lose lateral support. The relative importance of bone density and architecture in etiology bone fractures are poorly understood and the need for improved mechanistic understanding of bone failure is at the core of important clinical problems such as osteoporosis, as well as basic biological issues such as bone formation and adaptation. These observations motivated the present work in which simplified adaptive-beam buckling model is formulated within the context of the adaptive elasticity (Cowin and Hegedus 1976, Hegedus and Cowin 1976). Our results indicate that bone loss activation process leads systematically to the apparition of new elastic instabilities that can conduct to bone-buckling mechanism of fracture.

키워드

참고문헌

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피인용 문헌

  1. Elastic bone-column buckling including bone density gradient effect within the context of adaptive elasticity vol.36, pp.5, 2015, https://doi.org/10.1016/j.irbm.2015.07.004
  2. Hydroxyapatite Crystal Thickness and Buckling Phenomenon in Bone Nanostructure During Mechanical Tests 2018, https://doi.org/10.1007/s10439-018-1983-0
  3. NONLOCAL CONTINUUM ADAPTIVE ELASTIC BONE-COLUMN BUCKLING MODEL vol.21, pp.3, 2014, https://doi.org/10.1142/s0219519421500159