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Besides, the microstructure and mechanical properties of the welding joints are also investigated.
In order to investigate the weld interface and the mechanical strength of the joint, the weld examples were cut through the cross-sections of the joint areas.
Besides, process parameters are the key factors contribute to different interface morphology, especially for impact velocity, impact angle and flyer plate thickness.
Besides, no heat affected zone and intermetallic phase appeared in the area of weld interface.
In order to investigate the microstructure and mechanical properties of the welding joints, interface morphology, micro-hardness and microstructure characterization are discussed.

With help of multi material design, car manufacturers want to ensure that the appropriate materials with their specific mechanical properties are used in the right place as well as quantity and thus to achieve the aim of weight reduction of the structure [4].
Before answering these questions in relation to clinched structures it is firstly and foremost important to examine the properties of the base material from the fracture mechanical point of view.
For the determination of the fracture mechanical properties of the base material several preparatory investigations are essential.
In accordance to the standard ASTM E 647 for the determination of fracture mechanical properties in consideration of cyclic loading situations a compact tension (CT) specimen can be utilized [12].
Besides, the tests with different rolling directions 0° and 90° illustrate that the rolling direction has no significant influence on the fracture mechanical properties.

a hadyun@163.com, bbtwang@hhu.edu.cn Keywords: lime stabilized expansive soil, wet and dry cycle, direct shear test, consolidation test ABSTRACT: Lime Stabilized expansive soil is often used as filler in road subgrade, although many scholars have done a lot of research, the mechanical properties under wet and dry cycle role remains unclear.
Wetting and drying cycle caused by the variability of environmental conditions is the main factor lead to degradation of mechanical properties of embankment filler, the embankment filler loss water and shrink in the dry season, and bibulous saturated and inflation in the rainy season, so the role of the reciprocating will lead to the change of the structure of the soil, soil strength gradually reduced, which finally causes the destruction of roadbed.
Based on the above background, the article carry out test study on mechanical properties of the lime stabilized expansive soil under wet and dry cycle, to explore the strength variation and stability strength of lime stabilized expansive soil under wet and dry cycle.
CONCLUSIONS With all the above results, the mechanical properties of lime stabilized expansive soil under wet and dry cycle have such characteristics as follows:  The strength of soil will decrease especially in previous cycle, and the trends can be expressed with logarithmic model
Research on mechanical properties of expansive soil under wetting-drying cycle, Rock and Soil Mechanics, Vol.28 Supp.

Moreover, the structure and tensile mechanical properties were measured on the wrapped yarns.
The schematic diagram and local spinning triangle were shown in Fig. 1. 9 samples of wrapped yarn at different spinning speeds and different symmetric distances between two nylon filaments and the stainless steel filament were spun, and 3 samples of double-stranded stainless steel and experimental factors were listed in Table 1.
However, when the spinning speed is 60, different symmetric distance less affects on the twist.
The wrapped yarn wrapping is effective and can ensure the stainless steel filament in the center of wrapped yarn, and mechanical properties well.
Moreover, the structure, and tensile mechanical properties were measured on the wrapped yarns.

The properties of the basic fuzzy controllers can be improved through compiling S-function and subsystem that automatically corrects the quantizing factors Ke and Kc.
We can quantify the factors e and ec to amend the corresponding decision made by Fuzzy Reasoning through the size of the input signal, the direction and trend of such characteristics etc.
Fuzzy controller quantitative factors Ke and Kec have a greater impact to steady-state properties and dynamic characteristics of the fuzzy system.
MATLAB based Optimization of Fuzzy Control System Design and Simulation: Mechanical Engineering and Automation.
[8] Wei Wei: Intelligent control technology (Mechanical Industry Press, Beijing 2000)

Surface related properties of denture base materials (roughness, surface free energy, wettability, hydrophobicity, etc.) are of clinical importance since they affect plaque accumulation and staining.
Surface related properties of denture base materials (roughness, surface free energy, wettability, hydrophobicity, etc.) are of clinical importance since they affect plaque accumulation and staining [11].
Candida Albicans is an opportunistic pathogen in humans and some predisposing factors such as immunosuppressive drugs, xerostomia, systemic diseases assosciated or not with poorly fited and porous dentures result in fungal infections.
Also silane-SiO2 nanocomposite films are reported to reduce adherence of fungal entities without affecting physical properties of tested heat-polymerized acrylic resins [24].
Evaluation of mechanical and thermal properties of commonly used denture base resins, J Prosthodont 13 (2004) 17- 27

Then, the damage intensity of mechanical impact on magnetic circuit was decided.
Lots of literature focus on the failure mode and the factors affect performance parameters of electromagnetic relay.
Zhai Guofu [3] taken the contact spring system of electromagnetic relay as a rigid body, analyzed the dynamic procession of mechanical properties by solving the kinetic equations.
So that strong impact is the key factor of uncontrollable and false triggering of electromagnetic relay in engineering applications.
That’s the fundamental factor of the electromagnetic relay failure during the experiment. 4.2 Improved design of Structure and simulation of mechanical impact The three-dimensional structure modeling of SRA-05VDC-CL-type electromagnetic relay is established by SolidWorks software, and then the finite element model is established by ANSYS Workbench.

Introduction Since the discovery of carbon nanotubes (CNTs) in 1991 [1], they have been viewed as a promising reinforced phase in composites attributed to their attractive properties.
How can CNTs be integrated into composite materials without losing their unique properties?
Since understanding CNTs evolution in the composites processing steps would give valuable information about the selection of proper methods to obtain the expected composite properties.
Possible impacting factors were discussed.
Here, two factors are suggested: (i) constraint from the consolidation, and (ii) shrinkage from thermal mismatch.

Weld quality depends on welding type, welding parameters (currents, voltage and its travel speed) and the mechanical properties of the weld metal and heat affected zone (HAZ), which in turn is influenced by the metallurgical characteristics and chemical compositions of the weld [2].
Welding process parameters such as welding speed, welding current, shielding gas flow rate and gap distance plays an important role in determining the mechanical properties of the weld, such as tensile load [4].
Fig. 7 Microstructure (HAZ) Specimen 1, 3 and 7 Conclusion The results obtained for tensile strength and hardness shows that different levels of ampere, voltage and travel speed in the welding process affect the maximum and minimum values of the weld properties.
"Effect of welding variables on mechanical properties of low carbon steel welded joint."
"Effect of Arc Welding Current on the Mechanical Properties of A36 Carbon Steel Weld Joints."

Besides the operational environment, the manufacturing process, especially surface treatment techniques, plays a crucial role in affecting the fatigue life of titanium alloy fasteners.
Factors No.
Effect of Delayed Quenching on the Microstructure and Properties of TC4 Titanium Alloy for Aerospace Fasteners, J.
“Residual stress, fatigue behavior, and mechanical properties of equal-channel angular pressed commercial pure titanium”, Journal of Materials Research and Technology, Vol. 28, pp. 3, 297-3, 305, 2024.
“Factors Influencing Residual Stresses in Cold Expansion and Their Effects on Fatigue Life－A Review”, Coatings, Vol. 13, No. 12, 2023.