Advance Material and Material Selection - Case Studies in Engineering Failure Analysis

ADVANCE MATERIAL AND MATERIAL SELECTION
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Case Study 1
Failure analysis of a diesel generator connecting rod C. Juarez, F. Rumiche, A. Rozas, J.
Cuisano, P. Lean, Case Studies in Engineering Failure Analysis, Volume 7, October 2016, Pages
2431, ISSN 2213-2902, http://dx.doi.org/10.1016/j.csefa.2016.06.001
Higher recurrent variation in temperature due to the heat generated from the engine. The
head is generated due to the fact that there is a combustion during the operation of such engines.
It is hence very significant that the material employed in making these connecting rods should
have a higher degree of structural integrity constituting a higher breakage toughness (They
should be mechanically strong to avoid fractures which may occur due to expansion and
relaxation caused by temperature variations). The durability of the rods will somehow depend on
the resilience of the thermal stress. Remarkably, in such situation, this approach of creep is a
mutual occurrence and is always credited to the letdown such as in this case study.
The mechanism of fatigues which has been mentioned out resulted from the creep
mechanism. The damaging and non- damaging approaches for example fractography displayed
the failure modes pictorially. The analysis carried out by expert and enhanced by examination
equipment, for example, high-resolution electron microscope shows that the manufacturing of
rod was done poorly, and this made it not to endure too many thermal stresses for a lengthy
period. Henceforth, the case study after evaluation clearly discloses that the realities of the
conspicuous working of the connecting rods.
It is domineering for the engineers (basically the designers and material scientists) to
advance on their engineering and scientific thoroughness in order to achieve a remarkable