METHOD OF DETERMINATION OF THE BOUNDARY STRENGTH OF PRESSED SHEETS OF CAR BODIES FOR CATEGORIES TO 1300 CM3

Abstract

Pressed steel sheets, in this case compacted vehicle bodies represent the structure diversity of the non-homogeneous material. There is necessity to determine the shear strength for the development of the construction of new processing equipment (cutting) of steel sheets. To calculate the shear strength it is necessary to know the ultimate firmness of the material. For homogeneous materials this parameter is normally available in the tables. The article discusses the experimental detection of boundary strength of pressed metal of vehicle bodies. To gain some relevant statistical evaluation the samples of the car body have been divided into three groups according to the engine capacity. The experiment was evaluated by the following statistical methods, analysis of variance using the AIC criterion and Grubbs test for outliers. According to the analysis of the measured parameters the resulting mathematical model, which is used for determination of optimal values of boundary strength, has been established. The resulting mathematical model can be used to determine the boundary strength, which serves as an input parameter for the calculation of shear strength required for the development of new equipment designed for the processing of scrap metal, with cutting.

Recommended articles

MUNICIPAL SOLID WASTE GASIFICATION WITHIN WASTE-TO-ENERGY PROCESSING

MAREK BALAS, MARTIN LISY, PETR KRACIK, JIRI POSPISIL
Keywords: waste-to-energy | pyrolysis | gasification | municipal solid waste

EXPERIMENTAL EVALUATION OF THE QUALITY OF SURFACE AFTER WEDM FOR STEEL X210CR12

KATERINA MOURALOVA, JIRI KOVAR, MILAN KALIVODA, MILAN DVORAK
Keywords: Analysis of the chemical composition | quality of surface | steel X210Cr12 | electrical discharge machining | WEDM

SUBSTITUTION OF CEMENT BY MICRO-MILLED RECYCLED CONCRETE IN COLD RECYCLED ASPHALT MIXES

ZUZANA CIZKOVA, JAN VALENTIN
Keywords: cement | moisture susceptibility | cold recycled asphalt pavement | active filler | mechanical activation | recycled concrete | micro-milled concrete

THE POSSIBILITY OF USING RECYCLED POLYPROPYLENE SUPOL HT345E

LUDOVIT KOLLATH, JANA KRCOVA, ERNEST GONDAR
Keywords: particles | wood sawdust | polypropylene | extruder