Experimental study of cancellous bone under large strains and a constitutive probabilistic model

Kefalas, V; Eftaxiopoulos, DA

dc.contributor.author	Kefalas, V	en
dc.contributor.author	Eftaxiopoulos, DA	en
dc.date.accessioned	2014-03-01T02:08:59Z
dc.date.available	2014-03-01T02:08:59Z
dc.date.issued	2012	en
dc.identifier.issn	17516161	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29759
dc.subject	Cancellous bone	en
dc.subject	Compression	en
dc.subject	Constitutive model	en
dc.subject	Experimental	en
dc.subject	Large strains	en
dc.subject	Tension	en
dc.subject.other	Bovine cancellous bones	en
dc.subject.other	Cancellous bone	en
dc.subject.other	Compaction process	en
dc.subject.other	Constitutive law	en
dc.subject.other	Engineering strains	en
dc.subject.other	Experimental	en
dc.subject.other	Experimental studies	en
dc.subject.other	Failure process	en
dc.subject.other	Large strains	en
dc.subject.other	Mechanical model	en
dc.subject.other	Plateau region	en
dc.subject.other	Probabilistic models	en
dc.subject.other	Statistical descriptions	en
dc.subject.other	Tension	en
dc.subject.other	Tension tests	en
dc.subject.other	Three stages	en
dc.subject.other	Trabecular structure	en
dc.subject.other	Uni-axial compression	en
dc.subject.other	Bone	en
dc.subject.other	Computer simulation	en
dc.subject.other	Constitutive models	en
dc.subject.other	Fracture	en
dc.subject.other	Strain	en
dc.subject.other	Stress-strain curves	en
dc.subject.other	Tensile testing	en
dc.subject.other	Compaction	en
dc.subject.other	animal cell	en
dc.subject.other	animal tissue	en
dc.subject.other	article	en
dc.subject.other	bioengineering	en
dc.subject.other	biomechanics	en
dc.subject.other	body constitution	en
dc.subject.other	bone mass	en
dc.subject.other	bone stress	en
dc.subject.other	cancellous bone	en
dc.subject.other	compression	en
dc.subject.other	controlled study	en
dc.subject.other	cow	en
dc.subject.other	fracture	en
dc.subject.other	nonhuman	en
dc.subject.other	osteomalacia	en
dc.subject.other	priority journal	en
dc.subject.other	probability	en
dc.subject.other	simulation	en
dc.subject.other	tension	en
dc.subject.other	trabecular bone	en
dc.subject.other	Animals	en
dc.subject.other	Biomechanics	en
dc.subject.other	Cattle	en
dc.subject.other	Compressive Strength	en
dc.subject.other	Elastic Modulus	en
dc.subject.other	Femur	en
dc.subject.other	Fractures, Bone	en
dc.subject.other	Models, Biological	en
dc.subject.other	Models, Statistical	en
dc.subject.other	Stress, Mechanical	en
dc.title	Experimental study of cancellous bone under large strains and a constitutive probabilistic model	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jmbbm.2011.10.006	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jmbbm.2011.10.006	en
heal.publicationDate	2012	en
heal.abstract	Experimental study of bovine cancellous bone up to compaction under uniaxial compression and up to fracture under tension, has been pursued in this article. Compression experiments have revealed the known three stages of the constitutive response, namely the initial increasing and softening branches at moderate strains, the plateau region at large strains and the hardening part at very large strains under compaction. Tension tests have quantified the increasing and softening branches of the stress-strain curve up to fracture. Subsequently, a constitutive mechanical model, for the simulation of the experimental findings up to very large strains (75% engineering strain under compression), is proposed. The model is based on the statistical description of (a) the failure process of the trabecular structure at small and moderate strains and (b) the compaction process of the trabecular mass at very large strains under compression. Several fitting cases indicated that the presented constitutive law can capture the evolution of the experimental results. © 2011 Elsevier Ltd.	en
heal.journalName	Journal of the Mechanical Behavior of Biomedical Materials	en
dc.identifier.doi	10.1016/j.jmbbm.2011.10.006	en
dc.identifier.volume	6	en
dc.identifier.spage	41	en
dc.identifier.epage	52	en