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090			_aB-15368
245	1	0	_aSome failure modes of four clinical bone cements
490	0		_vProceedings of the Institution of Mechanical Engineers, Part H, 215(4), p.359-366, 2001
520	3		_aThe fracture or failure behaviours of four commercial acrylic-based bone cements have been examined in tensile, bending and compression modes, and their mechanical properties are reviewed. It was found that Palacos R-40 bone cement had high radiopaque agent concentration, with high surface hardness. It exhibited a much lower bending strength and bending modulus com-pared with the other three bone cements (CMW1, CMW2000 and Simplex P). The textures of tensile fracture surfaces produced were similar for the four bone cements studied. The fracture surface was fragmented by crevices, which developed through the matrix and around large undissolved polymethylmethacrylate (PMMA)beads. Three bands with di V erent features existed on the bending fracture surfaces, with an abrupt transition between them. It appears that the agglomerates of zirconium dioxide particles are implicated in Palacos R-40 bone cement fracture surface. The examination of compressive failed specimens revealed that a 'yielded crack band' existed across the transverse section. Plastic deformation resulted in the PMMA beads being squashed in the longitudinal direction and dilated in the transverse direction.
650	1	4	_aBONE CEMENT
650	1	4	_aFAILURE BEHAVIOUR
650	1	4	_aMECHANICAL PROPERTIES
650	1	4	_aPMMA
700	1	2	_aLiu, C.
700	1	2	_aGreen, S.M.
700	1	2	_aWatkins, N.D.
700	1	2	_aGregg, P.J.
700	1	2	_aMccaskie, A.W.
856	4	0	_uhttps://drive.google.com/file/d/1lT8jIS-nKxHNdprbo0zV0oJJrmjAKMEV/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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