Study of the Influence of Inclusions on the Behavior of NiTi Shape-Memory Alloys in Thermal Cycling by Means of Finite Element Method

Urbano, Marco

doi:10.1007/s11661-011-0932-4

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The first assumption to be relaxed is the generalization of the studies here presented to non-homogeneous deformations (Auricchio and Petrini, 2004b;Attanasi et al, 2011). The onset of plastic deformations is indeed a local phenomenon that is to be expected to occur close to points where local stresses increase, such as clamps or inclusions (Urbano, 2012). It is therefore a too restrictive hypothesis to limit the analysis to homogeneous materials and deformations.…”

Section: Discussionmentioning

confidence: 99%

Macroscopic modeling of functional fatigue in shape memory alloys

Barrera

Biscari

Urbano

2014

European Journal of Mechanics - A/Solids

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Section: Discussionmentioning

confidence: 99%

Macroscopic modeling of functional fatigue in shape memory alloys

Barrera

Biscari

Urbano

2014

European Journal of Mechanics - A/Solids

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“…All safety and stress analyses of the geometries for this design were carried out using the ANSYS program. Apart from the analysis of design geometries using finite element models, many different metallurgical properties have been examined using ANSYS [25,26]. No research has been found in the literature studies regarding the change of microstructure and mechanical properties resulting from the cooling rate of auto parts.…”

Section: Introductionmentioning

confidence: 99%

“…Extrusion method is the most ideal method for this geometry according to injection. It is also a plastic forming method, and its mechanical properties are therefore better [25,26]. A product has been reported to an industrial organization as having insufficient mechanical properties at high speeds.…”

Section: Introductionmentioning

confidence: 99%

Finite Element‐Based Simulation of Cooling Rate on the Material Properties of an Automobile Silent Block

Öztürk

Kara

2020

Advances in Materials Science and Engineering

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The aluminum silent block is the part that connects the front suspension mounting and the road wheels. These products are used in high-speed cars and are subject to high engineering stresses. Over time, fractures occur in the connection part of these products due to insufficient strength. These problems are related to production metallurgy, which led to the concept of this study. During mass production, these parts are manufactured using the aluminum extrusion method. In this study, a rapid cooling process using water was applied, with the aim of improving the mechanical properties of the connecting part exposed to high dynamic loads. Samples were taken from the regions of these products which differed in thickness and width, and microhardness and tensile tests were performed for each region. The effects of both the extrusion cooling rate and the regional flash cooling on the material properties were then characterized. As a result of the isothermal transformation, the grain size in the microstructure of the material had shrunk. According to the findings, in this type of production, an average increase in strength of 25% was observed in the parts of the material subjected to maximum stress. The stress and safety coefficient values were found using finite element analysis, and curves were then drawn showing the differences in the safety coefficient values from the different points. As a result of cooperation between university and industry, the material and mechanical properties of an automobile part were improved in this study. This research has shown that, in terms of the accuracy of the results, it is very important to consider the variations in different regions of the product when defining the mechanical properties of any material produced by applying casting, heat treatment, and plastic forming methods.

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Study of the Influence of Inclusions on the Behavior of NiTi Shape-Memory Alloys in Thermal Cycling by Means of Finite Element Method

Cited by 2 publications

References 6 publications

Macroscopic modeling of functional fatigue in shape memory alloys

Macroscopic modeling of functional fatigue in shape memory alloys

Finite Element‐Based Simulation of Cooling Rate on the Material Properties of an Automobile Silent Block

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