Jorgen
2007-08-28, 20:33
http://polymerfem.com/polymer_files/topics/hmodel.gif
If you are interested in simple first-order failure modeling of polymers, plastics, or rubbers, and want to find out how different failure conditions (e.g. Mises stress, max principal strain, chain stretch) can predict failure under monotonic loading, then you should read the summary for UHMWPE that is now available for download (http://polymerfem.com/polymer_files/UHMWPE_failure_model1.pdf).
Abstract:
Mechanical failure of UHMWPE components is one of the major factors controlling the lifetime of total joint arthoplasties. UHMWPE failures are often introduced at a micro-scale by wear and contact fatigue. Previous attempts to analytically predict the clinically observed damage, wear and fatigue failure modes have met limited success due to complicated interaction between microstructure deformations and continuum level stresses. The goal of the present study was to evaluate the utility of eight different failure models for predicting the failure of conventional and highly crosslinked UHMWPE under monotonic uniaxial as well as multiaxial loading conditions.
If you are interested in simple first-order failure modeling of polymers, plastics, or rubbers, and want to find out how different failure conditions (e.g. Mises stress, max principal strain, chain stretch) can predict failure under monotonic loading, then you should read the summary for UHMWPE that is now available for download (http://polymerfem.com/polymer_files/UHMWPE_failure_model1.pdf).
Abstract:
Mechanical failure of UHMWPE components is one of the major factors controlling the lifetime of total joint arthoplasties. UHMWPE failures are often introduced at a micro-scale by wear and contact fatigue. Previous attempts to analytically predict the clinically observed damage, wear and fatigue failure modes have met limited success due to complicated interaction between microstructure deformations and continuum level stresses. The goal of the present study was to evaluate the utility of eight different failure models for predicting the failure of conventional and highly crosslinked UHMWPE under monotonic uniaxial as well as multiaxial loading conditions.