The development of methods for using the deformation specific gravity for the evaluation of strength and analysis of weld joints geometry

The object of investigation: the weld joints strength. The purpose of the work: the improvement of the accuracy of the weld joints strength evaluation on the base of the computer modeling, complex analysis of the danger of the concentrators being available and the account of the effect of the weld geometry and the elements to be welded. Used have been the method of finite elements, the computer methods of the destruction mechanics, the methods of the theory of similarity and modeling, the methods of the correlation and regressive analysis, the methods of design of the program systems. The computer IBM PC, experimental machine for a single-axle tension. Offered has been the design coefficient of the deformation energy density, allowing to increase the accuracy of the weld joints strength evaluation on the base of the complex analysis of the danger of the concentrators being available on the position of the same time of coming the limit state of damage in them. The recommendations and necessary software on the numerical methods of evaluation of the static strength and analysis of the weld joints geometry have been developed. The developed methods, the software and practical recommendations on the selection of the rational geometry of the weld joints have been used in the Stakhanovsky CS of the car building. The effectiveness of introduction: the improvement of accuracy of the weld joints strength evaluationAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio