Evidence of a state of initial stress in osteonic lamellae

Ascenzi, A.; Benvenuti, A.

Affiliations

¹1st Institute of Anatomia Patologica, University of Rome, Policlinico ‘Umberto I° Wale Regina Elena 324 00161 Rome, ltaly

Abstract

By applying the technique described by Ascenzi et al. (1973), lamellar samples whose fiber bundles had a transverse spiral course were prepared from osteons with alternating lamellae isolated from human femoral shafts. Especially when their diameter is large with respect to their height, lamellar samples lose the cylindrical shape they normally possess in whole osteons, undergoing spontaneous deformations which suggest a state of initial stress. These deformations are more complex than those contemplated by Volterra's theory of dislocations. Even so, the main features of this theory have allowed us to analyse the state of initial stress. This stress was eliminated by cutting each lamellar sample along a line parallel to its axis. The new shape of the sample was then studied. Two conclusions have been drawn: (a) the capacity of lamellae whose fiber bundles have a transverse spiral course to support a tensile load oriented parallel to the osteon axis depends essentially on a state of initial stress, and (b) calcification plays no basic role in producing this state of initial stress.

Links

DOI: 10.1016/0021-9290(77)90098-7

PubMed: 893478

WoS: A1977DU25800001

History

Received: 1977-08-7

Cited Works (6)

Year	Entry
1976	Ascenzi A, Bonucci E, Benvenuti A. Relationship between ultrastructure and “pin test” in osteons. Clin Orthop Relat Res. November–December 1976;121:275-294.
1973	Ascenzi A, Bonucci E, Simkin A. An approach to the mechanical properties of single osteonic lamellae. J Biomech. May 1973;6(3):227-235.
1967	Ascenzi A, Bonucci E. The tensile properties of single osteons. Acta Anat. 1967;158(4):375-386.
1964	Ascenzi A, Bonucci E. The ultimate tensile strength of single osteons. Acta Anat. 1964;58(1-2):160-183.
1976	Ascenzi A, Bonucci E. Mechanical similarities between alternate osteons and cross-ply laminates. J Biomech. 1976;9(2):65-71.
1968	Ascenzi A, Bonucci E. The compressive properties of single osteons. Anat Rec. July 1968;161(3):377-392.

Cited By (7)

Year	Entry
1982	Ascenzi A, Benvenuti A, Bonucci E. The tensile properties of single osteonic lamellae: technical problems and preliminary results. J Biomech. 1982;15(1):29-37.
1986	Corondan G, Haworth WL. A fractographic study of human long bone. J Biomech. 1986;19(3):207-218.
2005	Almer JD, Stock SR. Internal strains and stresses measured in cortical bone via high-energy X-ray diffraction. J Struct Biol. October 2005;152(1):14-27.
2006	Ascenzi M-G, Lomovtsev A. Collagen orientation patterns in human secondary osteons, quantified in the radial direction by confocal microscopy. J Struct Biol. January 2006;153(1):14-30.
2020	Mehraban Alvandi L. Diffuse Damage Repair Mechanism in Bone [PhD thesis]. New York, NY: The City College of New York; 2020.
2019	Neves E. The Effect of Strain on the Minerlization of Individual Collagen Fibrils [Master's thesis]. Northeastern University; December 2019.
2012	Deymier-Black AC. Study of the Elasto-Plastic Properties of Mineralized Biomaterials Via Synchrotron High-Energy X-Ray Diffraction [PhD thesis]. Evanston, IL: Northwestern University; June 2012.