Computer aided design of polymeric composite materials based on UHMW-PE modified by ultrafine powders and nanofibers

The aim of the research is developing physical-mechanical and information basis for designing protective and functional polymeric materials and coatings based on ultrahigh molecular weight polyethylene (UHMW-PE) with ultrafine and nano-powders and fibers. The method suggested is bases on combination of structural (multi-scale) analysis of materials by advanced methods of computer mechanics and design of numerical experiments as well. It allows establishing a relationship between macro-characteristics of material and control parameters. For the latter the parameters of material structure and manufacturing technology were taken. Within the state space a surface is constructed which characterize the links. A level line on the surface is responsible for a certain level of the macro-characteristics. When an interval of values of the macro-characteristic is appointed it is associated with a region of corresponding values of the control parameters. Reliability of manufactured composite products is evaluated by allowable deviation of control parameters from nominal values that is governed by shape and size of the area of allowable values of the control parameters. The advantage of the method suggested is determined by explicit account of structural state and multilevel character of heterogeneous material behavior under external loading of different nature.