Szukana fraza: [Abstract = "Next, the impact of the headform model on a windshield was analysed. The FEM model of laminated glass is composed of two outer layers of glass and an inner layer of polyvinyl butyral. FEM analyses of the impaction were performed at five points of the windshield characterised by various dynamic responses of the impactor and various patterns of glass cracking. In modelling the layers of glass, the Abaqus environment \"brittle cracking\" model was used. The following material models of PVB resin were considered\: elastic, elastic\-plastic, hyperelastic, and low\-density foam. Furthermore, the influence of the mesh type on the process of glass cracking in a laminated windshield was analysed."]

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