@article{(Open Science Index):https://publications.waset.org/pdf/9999809,
	  title     = {Stress Analysis of the Ceramics Heads with Different Sizes under the Destruction Tests},
	  author    = {V. Fuis and  P. Janicek and  T. Navrat},
	  country	= {},
	  institution	= {},
	  abstract     = {The global solved problem is the calculation of the
parameters of ceramic material from a set of destruction tests of
ceramic heads of total hip joint endoprosthesis. The standard way of
calculation of the material parameters consists in carrying out a set of
3 or 4 point bending tests of specimens cut out from parts of the
ceramic material to be analysed. In case of ceramic heads, it is not
possible to cut out specimens of required dimensions because the
heads are too small (if the cut out specimens were smaller than the
normalised ones, the material parameters derived from them would
exhibit higher strength values than those which the given ceramic
material really has). A special destruction device for heads
destruction was designed and the solved local problem is the
modification of this destructive device based on the analysis of
tensile stress in the head for two different values of the depth of the
conical hole in the head. The goal of device modification is a shift of
the location with extreme value of σ1max from the region of head’s
hole bottom to its opening. This modification will increase the
credibility of the obtained material properties of bioceramics, which
will be determined from a set of head destructions using the Weibull
weakest link theory.
	    journal   = {International Journal of Aerospace and Mechanical Engineering},
	  volume    = {8},
	  number    = {12},
	  year      = {2014},
	  pages     = {1951 - 1955},
	  ee        = {https://publications.waset.org/pdf/9999809},
	  url   	= {https://publications.waset.org/vol/96},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 96, 2014},