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Multiaxial mechanical strength of aa-2024-t3 aluminium alloy sheets joined by friction stir welding processes R.L.L.P.
One of the most widely used processes in fuselage mating is riveting, which has beyond other disadvantages, the fact that it has a low automation capability, it increases the structural weight, reduces the mechanical properties of the part and accelerates the fatigue process.
Figure 10 - Micro indentation Hardness HV of the FSW zone The lowest hardness values were found in the zones corresponding to the points of high temperature during the FSW process, the heat affected zone and the thermomechanically affected zone.
Another factor that could be proved is the softening that occurs at certain points of the weld.
Batalha: "Mechanical strength evaluation for (d-YAG laser and electric resistance spot weld (ERSW) joint under multiaxial loading".

With regards to high temperature gradient in weld zone, temperature dependant thermal and mechanical properties have been incorporated in the simulation.
For the plastic strain increment, a rate-independent elastic-plastic constitutive equation is considered with the Von Mises yield criterion, temperature-dependent mechanical properties and linear kinematic hardening rule.
With regards to high temperature gradient in weld zone, thermal and mechanical properties are dependent on temperature history, as table 1 and 2 illustrate.
Based on table 3 and 4, Thermal and mechanical properties of this joint are dependent on temperature history as well.
With regards to the results, among various factors implemented in thermal and mechanical analysis, choosing the number of elements, heat input, yield stress, Yung modulus, plasticity modulus and displacement constraints have an considerable effects on results.

Also, the preheat temperature, thermal conductivity of mold material and thermal convection coefficient known as the influencing factors of thermal stress and decreasing stress measures have been studied.
Also, the influencing factors of thermomechanical stress and decreasing stress measures have been studied.
As the model in the cooling process is impacted by gravity and chemical reactions and other factors, the material properties of the casting are not uniformly distributed.
Owing to the range of temperatures experienced in the process, the model must account for any appreciable temperature dependencies in thermo-physical properties of the materials employed in the casting process.
Influencing Factors of Thermal Stress Basicly study five key points and compare.

Through analyzing the stress distribution feature and stress distribution tendency and affection factors, the affection factors to anchoring results is the dilatancy angle.
Therefore, it is necessary that constructing security support to ensure the safety of personnel and equipment and other property.
Rock mass of the two areas have different mechanical parameters.
The factors affecting the stress distribution of the rock bolt It can be seen from the above calculation formula, the factors affecting the distribution of anchor stress Including bolt and the surrounding rock mass mechanical parameters.
Those were studied in detail In the Literatures [9-10] impact bolt stress distribution factors, such as the length of the bolt, bolt anchor installation time as well as the surrounding rock mass mechanical parameters, Such as elastic model of the rock mass, Poisson's ratio.

A high-temperature background also exists in decagonal Al-Ni-Co up to 1000 K or even 1200 K; in that case, however, there is no such huge difference in activation parameters (especially as concerns the pre-exponential factors) like that between peaks A and B in Al-Pd-Mn [5].
Trebin, ed., Quasicrystals, Structure and Physical Properties, Wiley-VCH, p. 338 (2003)
Trebin, ed., Quasicrystals, Structure and Physical Properties, Wiley-VCH, p. 523 (2003)
Trebin, ed., Quasicrystals, Structure and Physical Properties, WileyVCH, p. 536 (2003)
Trebin, ed., Quasicrystals, Structure and Physical Properties, Wiley-VCH, p. 2 (2003)

Composite fibers are a significant aspect in changing the mechanical properties through the direction of the fiber.
Orientation differences in composite materials can significantly affect various material properties.
In and out of plane mechanical properties of hand lay-up vegetal fiber reinforced polyester resin composites
Mechanical, Thermal, and Interfacial Properties of Green Composites with Ramie Fiber and Soy Resins.
Enhancing Thermal and Mechanical Properties of Ramie Fiber via Impregnation by Lignin-Based Polyurethane Resin

The properties of the components in these combinations were listed in Table 1 [12].
Combinations of components used in this study and their properties [16].
Bourgeault, Morse-type tapers: factors that may influence taper strength during total hip arthroplasty.
Freese Mechanical and Physical Properties of Titanium-12Molybdenum-6Zirconium-2Iron Beta Titanium Alloy journal of ASTM international, 2005. 2(8)
Freese., Mechanical and Physical Properties of Titanium-12Molybdenum-6Zirconium-2Iron Beta Titanium Alloy.

The factors that affect the hammer head wear are the following: material of hammer head, manufacture quality, structure design, rotor rotational speed, condition of material input, and the gap between head and grate bar, etc.
The key factors are material of hammer head, manufacture quality and structure design.
The manufacturing defects, such as shrinkage cavity, crack and transcrystalline crack, will worsen the mechanical properties and even cause fracture of the hammer head.
Different structure and geometry of the hammer head differ in heat treatment on mechanical properties and inner metallographic structure, which affect the wear resistance, especially to those thicker and bigger head.
The best way is to optimization design the hammer head without changing the impact kinetic energy and strength, which will improve the Utilization rate of the head, reduce the impact of heat treatment on mechanical properties and avoid decreasing the wear resistance of the hammer head.

In general, the dispersed phases, particles or fibres, are stiffer and stronger than the matrix, affecting the mechanical properties of the mixture.
The Halpin-Tsai-Nielsen model highlights, as main factors, the particle volume fraction, the Ep/Em ratio and the maximum particle volume fraction, Vpm.
Although this latter model considers all the factors that contribute to the real composite mechanical behaviour, it also includes a term relative to the maximum particle volume fraction (Vpm) which is not well defined.
These parameters interfere in the matrixparticle interface properties, namely on the respective bond strength and stiffness and, certainly, on the composite mechanical behaviour.
Landel: Mechanical Properties of Polymers and Composites (Marcel Dekker, Inc., NY 1994)

Introduction New developments in advanced high strength steels (AHSS) have helped to reduce weight, improve fuel efficiency, and increase the crashworthiness of vehicles through enhanced mechanical properties [1].
However, to obtain reliable spot welds, the parameters affecting and its relationship with the quality of spot welds is very much essential.
Experimental work From the trials done in our laboratory; the predominant factors which are having greater influence on quality of resistance spot welds were identified.
These are the primary process parameters contributing to the heat input and subsequently influencing the tensile shear properties of resistance spot welded DP980 steel joints.
Chen, The Effects of welding parameters on mechanical properties and microstructure of resistance spot welded DP600 joints, J.