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The mechanical properties of various nanowires are tested by tensile process to determine their elastic module and yield stress versus radius size.
The mechanical properties of materials also change with its scale as the system size reaches to nanometers.
The loading rate and temperature are also the central factors to influence the mechanical properties of nanowires.
Although much work has been dedicated to the study of size effects on the mechanical properties of metallic nanowires, we still want to know some basic knowledge on the structural stability and mechanical parameter of various wires under different orientation systematically.
Conclusion In this paper, MD simulation is performed to predict the structural stability and mechanical properties of Ni nanowires.

Appropriate material properties, boundary conditions, and temperature profiles are applied to calculate the thermal stress distributions at room temperature and operation stage.
In this study, the stress intensity factors will be calculated at the highly stressed regions in the top PEN.
Fig. 8 (b) shows the stress intensity factors of the given three shapes of surface cracks change in a similar trend.
From these results, it could be concluded that defect/crack shapes would affect the thermal stress intensity factor.
More, Effect of Thermal Cycling and Thermal Aging on the Mechanical Properties of, and Residual Stresses in, Ni-YSZ/YSZ Bi-Layers, in Proceedings of the 30th International Conference on Advanced Ceramics and Composites, Cocoa Beach, Florida, January 22-27 (2006) 383-391

Dents are one of the most common mechanical damage to pipelines due to external factors and significantly affect the performance of the pipelines.
The damages can result in safety and environmental problems and will also affect pipeline operational problems.
Dents are one of the most common mechanical damage to pipelines and significantly affect the performance of the pipelines.
The pipeline material is API 5L X52 steel, and the material properties and dimensions are given in Table 1.
Material properties and dimensions of the specimens [10] Steel Grade D [mm] t [mm] L [mm] E [GPa] v σy [MPa] σu [MPa] δ [%] API 5L X52 720 8,1 7466 208 0,3 375 468 22,3 Meshing with various sizes was done to find an optimal way to generate accurate results with a short computation time.

This was reached from the advantage of the integration between simulation software COMSOL MULTIPHYSICS and EDR have been used to enhance the operating and mechanical factors of the air cooler heat exchanger.
Add blank material and select the properties of carbon steel as follows [11].
Physical properties of carbon steel.
The next step in designing a heat exchanger in Aspen EDR is to embed the physical properties as Aspen-properties function and add them to the property data window for hot stream then equipped with appropriate composition of nature gas components as shown in Figure (3).
Figure (9) The length of fin segments is one of the prime factors affecting on performance of heat sink, and thus directly affects its temperature.

These results have been explained by several factors.
In this case, the superposition of residual stresses and external loads reduces the mechanical properties and accuracy, producing fatigue cracks and other defects, and even fatigue fractures [2].
The influence of anisotropy on the plastic flow behavior of DP600 dual-phase steel depends on its mechanical properties [5].
This is because the distribution of laser welding residual stress is influenced by many factors.
Because of the texture formation, when the cyclic direction is parallel to the rolling direction, the Schmid factor is larger, which contributes to the grain slip and the plastic deformation, leading to compressive residual stress and increasing the fatigue properties of the material.

The results show that coating affects greatly the stress distribution near the hole edge, and the stress concentration factor in the coating increases with the coating thickness but decreases in the plate, and it increases with the shear modular ratio of the coating to the plate but decreases in the plate.
But their thermal expansion factor, elastic modulus and other properties do not match with each other.
The results [4] show that the drilling process will produce the ringed work-hardening layer near the hole edge, whose properties are changed greatly.
The above results indicate that the stress concentration is little affected by the coating, but greatly affected by the coating material shear modulus.
References [1] Science & Technology Committee of Ministry of Aeronautical Industry : A handbook of stress concentration factors (Higher Education Press, China 1990).

Effect of plastic deformation on a dispersion of omega-phase and mechanical properties of an Al-Cu-Mg-Ag alloy Marat Gazizova, Ivan Zuikob, Rustam Kaibyshevc Laboratory of Mechanical Properties of Nanostructured Materials and Superalloys, Belgorod State University, Pobeda 85, Belgorod, 308015, Russia agazizov@bsu.edu.ru, bzuiko_ivan@bsu.edu.ru, crustam_kaibyshev@bsu.edu.ru Keywords: Aluminum alloys; Cold working; Precipitation; Microstructure; Mechanical properties.
Effect of cold rolling prior to ageing on a dispersion of secondary phases and mechanical properties at room temperature for an Al-5.6Cu-0.72Mg-0.5Ag-0.32Mn-0.17Sc-0.12Zr (wt. %) alloy, which was solution treated and water quenched initially, was examined.
In contrast, cold rolling affects microhardness.
Keeping of hardness on high level after prolonged soaking at relatively high temperature indicates that experimental alloy has excellent heat-resistant properties.
Baseline determination of mechanical properties after ageing at 190°C for 2 h (T6 temper) shows that the yield stress (YS) of 450 MPa, ultimate tensile strength (UTS) of 495 MPa with elongation to failure of ~9% can be achieved in present alloy without prior plastic deformation.

Abstract: The microstructure and mechanical properties of permanent mold low-pressure casting (PMLPC)and sand mold gravity casting(SMGC) of A357 alloy were studied.
These differences may be attributed to various factors,such as filling speed, filling pressure, and cooling rate,thataffectthe qualityofpermanent molds during the filling process.
Wang et al.[11] studied the filling process, microstructure, and mechanical properties of A357 alloyproduced by low-pressure green sand casting.
However, comparingGroup Nos.2–6 with Group Nos.7–10, the SDAS appeared to have little or no effect on the mechanical properties of the alloys obtained.
Conclusion Alloys cast by PMLPC and SMGC were studied in terms of their microstructure and mechanical properties.

The results show that the overall stress and deformation in scroll are the largest when compression chamber is moving near the vent position and the thermal deformation is the main factor of affecting the overall deformation of scroll. 1 Introduction Scroll compressor is a positive displacement compressor.
The material properties of scroll are shown in Tables 1-2.
Displacement boundary condition is shown in Figure1. 2.2.2 Thermal Boundary Conditions The steady-state temperature distribution of scroll wrap can be made the following assumptions because that temperature distribution is almost the same in steady-state operation of mechanical [4]
From the properties of geometric of scroll wrap known, gas pressure loads can be simplified to internal pressureof angle region that acted on the inner wall surface, its size is pressure difference of two confined compression chambers that had different size.
Thus it can be seen, the thermal deformation is the main factors of affecting the overall deformation of the institution.

Microstructure and Mechanical Properties of ZK60 Alloy Sheets During Aging J.
Variations in microstructure and mechanical properties of ZK60 alloy sheets were investigated with aging time.
Poor mechanical properties, i.e. limited cold workability and toughness or limited high strength and creep resistance at elevated temperatures, have been the main drawbacks in the extensive usage of Mg alloys.
The frequency of 2β' decreased and T phases were not affected much.
Summary The effect of artificial aging on microstructure and mechanical properties was studied.