Numerical Simulation And Parameter Analyse On Fracture Splitting Of Connecting Rod Of Major

In recent years, the automobile industry flies to develop soon, themanufacturing method and techniques of connecting rod has pay tremendousconcern by the domestic and international. As a new technique of connectingrod, fracture splitting technique has been developed gradually at someautomobile developed country in 1990's, and is apply in gradually large-scaleproduce realm, is important change to the tradition techniques of connecting rod ,have become the important mark that a nation launches engine connecting rodmanufacturing industry development level.Fracture splitting skill has been researched deeply by abroad. Although thefracture splitting technology of connecting rod has been accepted in manymobile manufacture companies in domestic, the most equipments has importfrom abroad, even the materials have import. The core technique has alwaysbeen monopolized by foreigner. The domestic also start the research of thetechniques. There are still a lots of problems, including post-splitting,non-splitting, the distortion of splitting face etc in recent product. Thoseproblems influence the quality stability of products. But the influencepercentages on the results of fracture splitting of connecting rod are many more,But right now how those influence percentages on the splitting results ofconnecting rod are not obvious. The selection of fracture splitting forceparameter mainly depends on experience and no theory can abide by.In this paper aim at the technique of fracture splitting of engine connectingrod, the materials fitting to fracture splitting have been analysed, according tosome influence factors that the former has researched. The influence that thechemistry compositions to the mechanics function and the physical function insteel have been analyzed. The theory of quasistatic fracture splitting of suitableconnecting rod for engine EA827 has been studied. Aimed at the new materialC70S6, the quasistatic procedure has been numerical simulation analyzed bySPH non-mesh method. The solved stress intensity factor module andparameterize model building module have been developed based ANSYS byAPDL. Through the numerical simulation analysis, the stress concentrationstatus before the crack splits has been researched, and the have been found. Therelationships between fracture splitting force , factor and opening angle,curvature radius,the depth of crackle groove have been carried out.Through analysis and research above, a new study method of fracturesplitting of connecting rod has been confirmed, some variable regularity oftechnics parameters have been obtained. Secondary development of ANSYS hasbeen searched. All of them will be advantage with future study work.