STRESSES ANALYSIS ON A CONNECTING RODS

In an IC engine, the most heavily stressed part is connecting rod. Its functionality is connecting crankshaft and piston, which transfer energy from piston to crankshaft and converts linear piston reciprocating motion into crankshaft rotational motion. Under the engine cyclic process, the connecting rod is subjected to tensile and compressive loading. The main forces occurred on the connecting rod are forces due to maximum gas pressure and the inertia of connecting rod plus reciprocating masses. The connecting rod must have maximum stiffness at the minimal weight. This research work is focused on modeling and analysis of connecting rod stress, deformation, fatigue strength, and life prediction for Toyota Hilux diesel engine made by four candidate materials (aluminum alloy 7068T6, aluminum alloy 7050 T765, carbon steel C-40 and forged steel 4340). The connecting rod model was done by CATIA V5R20 and Numerical prediction of the desired parameters has been evaluated by considering the ...

The connecting rod was manufactured by forging process for enhancing high tensile and compressive load so that it was followed by the machining process and suite the IC engine as a part of the component. The main intern of our proposed work is to manufacture a two set of
composites specimen of A356 alloy with reinforcement of 5 wt.% silicon carbide and 10 wt.% flyash processed through two different techniques like stir casting and stir cum squeeze casting route and obtain better mechanical properties. Further, the same properties were taken for modeling and analysing of the developed connecting rod model. Due
to the commercial demand, the hybrid composite materials take a vigorous role in the analysis part of the connecting rod model. The FEA analysis is done on the connecting rod for a180cc engine by using Ansys 18.1. The static analysis is done by considering four different cases by altering material library property. The output parameter such as total deformation, Von Mises stress, and maximum equivalent elastic
strain are taken in each condition. The analysed results show
that the material property of aluminium alloy A356 reinforced
with 5% SiC and 10% flyash was cast under stir cum squeeze casting condition opt better results when compared with conventional stir casted connecting rod model and also the specimen of A356 alloy with reinforcement of 5 wt.% silicon carbide and 10 wt.% flyash under stir cum squeeze casting will have better material property.A356 reinforced
with 5% SiC and 10% flyash will have better results and
higher material property when compared with previous
similar researchers. So this composites and process were
recommended for manufacturing of connecting rod for
automobile applications.

Nowadays, the use of near surface mounted (NSM) technique strengthening reinforced concrete (RC) structural members is going very popular. The failure modes of NSM strengthened reinforced concrete (RC) beams have been shown to be largely due to premature failure such as concrete cover separation. In this study, CFRP U-wrap end anchorage with CFRP fabrics was used to eliminate the concrete cover separation failure. A total of eight RC rectangular beam specimens of 125 mm width, 250 mm depth, and 2300 mm length were tested. One specimen was kept unstrengthened as a reference; three specimens were strengthened with NSM steel bars and the remaining four specimens were strengthened with NSM steel bars together with the U-wrap end anchorage. The experimental results showed that wrapped strengthened beams had higher flexural strength and superior ductility performance. The results also show that these beams had less deflection, strain, crack width, and spacing.

Link to full text articles :
http://www.hindawi.com/journals/amse/2015/812797/abs/

The connecting rod is the intermediate member between the piston and the Crankshaft. Its primary function is to transmit the push and pull from the piston pin to the crank pin, thus converting the reciprocating motion of the piston into rotary motion of the crank. This thesis describes designing and Analysis of connecting rod. Currently existing connecting rod is manufactured by using material. In this drawing is drafted from the calculations. A parametric model of Connecting rod is modeled using NX 10.0 software and to that model, analysis is carried out by using ANSYS 16.0 Software. Finite element analysis of connecting rod is done by considering the materials Aluminum 360, Forged Steel, Titanium Alloy, Mild Steel, and Magnesium Alloy. The best combination of parameters like Von misses Stress and strain, Deformation, Factor of safety and weight reduction for four wheelers Connecting Rod were done in ANSYS software.

The use of steel and fiber reinforced polymers (FRPs) for strengthening RC beams can significantly improve the flexural strength, fatigue life and the serviceability of the beams compared to un-strengthened beams. Prestressing materials enable the material to become more efficient since a greater portion of its tensile capacity is employed. Investigations have shown that prestressed FRPs are effective materials for strengthening deteriorated structures. This paper presents a comprehensive review on the flexural behavior of strengthened RC beams using prestressed FRPs. The review covers the near surface mounted (NSM), externally bonded reinforcement (EBR) and externally post-tensioned techniques (EPT) and the corresponding advantages and disadvantages are highlighted. Anchorage systems and the effect of pre-stressing levels on the ductility, deformability and bond behavior of prestressed FRPs are also addressed. Recommendations for the future research are also presented. (C) 2015 Elsevier Ltd. All rights reserved.

Link to full text journal articles :
http://www.sciencedirect.com/science/article/pii/S0950061815001981
http://ac.els-cdn.com/S0950061815001981/1-s2.0-S0950061815001981-main.pdf?_tid=b8ac1ff2-4011-11e5-9d3d-00000aacb35f&acdnat=1439288236_690ffad51c0ff152c3c850eab4e4d4c1