Search results

It is known that GFRP has excellent mechanical properties such as high tensile strength, corrosion-resistance and is lightweight.
Due to the outstanding mechanical properties of GFRP, it is recognized and used in engineering applications and various industries such as the maritime, aviation and automotive industries, and also for audio and sports equipment.
Material and Methods Epoxy Resin is classified into the group of thermosetting polymers that have excellent mechanical properties, thermal properties and high corrosion resistance.
Epoxy resin mixed with fiber reinforcement improves material properties with high tensile strength, high chemical resistance and excellent insulating properties [22].
As seen in Fig. 6, the feed rate is another factor that can affect tool wear.

Wenchuan earthquake happened in 2008 caused an incalculable economic loss of people and state properties.
The distribution of the loess and the typical engineering properties is so broad that it always caused the attention of engineering and academic.
In view of the loess is affected by many physical and mechanical factors.
Thus the mechanical construction must be used.
And the mechanical construction is detrimental.

As the cavity of secondary lining changes the stress state of structure, and increases the possibility of structural damage, the lining usually cannot continue operation, and safety and durability of tunnel lining will be affected [2, 3].
Conclusion The factors of cavity in tunnel lining consist of two aspects, which are construction technology and concrete structure.
Yu, Analysis for mechanical properties of empty holes in different positions on tunnel lining, Journal of Water Resources and Architectural Engineering, 5 (2011) 70-73
Dong, Several factors affecting the detection of voids behind tunnel support by GPR, Modern Tunneling Technology, 3 (2009) 100-104

These advanced materials offer superior properties compared to the monolithic constituents; primarily, improved specific strength and stiffness compared to metals and improved impact and fatigue resistance when compared to composite materials.
The use of these advanced materials is currently restricted to specialised applications where the superior properties justify the high cost of manufacturing.
Reyes and Cantwell [1] investigated the mechanical properties of an FML system based on a glass fibre reinforced thermoplastic and found that the strength and elastic modulus of the system followed the rule of mixtures with the strength increasing and modulus decreasing with the composite volume fraction.
This method was used because it does not adversely affect the properties of the materials.
Cantwell, The mechanical properties of fibre-metal laminates based on glass fibre reinforced polypropylene, Composites Science and Technology, 60 (2000) 1085-1094

An effective method used to improve the mechanical properties of Mg alloys is grain refinement.
This is due to the obstruction of dislocation activity by grain boundaries, which is known to improve mechanical properties [15].
Mukai, Microstructure and mechanical properties of AZ91 alloy produced with ultrasonic vibration, Mater.
Shih, The effect of ultrasonic treatment on microstructural and mechanical properties of cast magnesium alloys, Mater.
Zhai, Effect of ultrasonic power on microstructure and mechanical properties of AZ91 alloy, Mater.

Taking chaotic sequences as the initial values of damp least square method, all the solutions of equations can be found quickly and making use of existing chaos system and discovering new chaos system to generate chaotic sequences with good properties is the key to the Chaos sequences-based damp least square method.
Use the existing chaotic system to find new chaotic system to produce excellent chaos sequence, at the same time, it is key to taking into account the solution of nonlinear equations required properties is based on the chaotic and hyper-chaotic sequence and its improved Newton iteration method or mathematical programming method.
Add damping to, attain re-Hei Chan iterative: (3) In the equation, is n-stage unit matix, is damping factor, the choice of Damping factor and the convergence criteria could be seen in paper [17].
[2] Wen F., Liang C.G,Liao Q.Z: China Mechanical Engineering, Vol.10,No.9(1999), p.1011-1013
,Yang T.L.: Chinese Mechanical Science and Tech.

To efficiently play the function of FA as the beneficial admixture of concrete, the activity of FA should be considered as a key factor in the mix proportion design of concrete.
Introduction To make fresh concrete with good workability and hardened concrete with required mechanical properties and ideal durability, it is important to make reasonably design for the mix proportion of concrete.
As made from crushed stone by machines according to certain procedures of crushing and sieving, machine-made sand has many characteristics different from natural sand such as irregular polygon particle with pointed edges, rough and new surface, which always brings about different properties of concrete from that of ordinary concrete with natural sand both in fresh and hardened states, especially the decreased flowing and serious bleeding of fresh concrete.
On summarizing the former test data of the mix proportion of concrete with machine-made sand and FA, this paper analyses the influences of these different ways on the properties of concrete based on the mechanism of concrete affected by FA.
The results reflect that the activity of fly ash relies on many factors both the active combinations in fly ash and the mix proportion of concrete especially the cement content.

Fanc School of Mechanical Engineering, Hebei University of Technology, Tianjin, P.
The stress concentration factors were obtained for the clamp joint.
Mo [4] studied the three main factors which affect the dynamic performances of the bed using Ansys and optimized the place machine by decreasing the lower order natural frequencies.
It can also be seen with little surprise that the structural pre-stress affects the frequencies with a small degree.
Zhang: Static/dynamic property analysis and optimization design for mechanical structure based on generalized modular design, [Doctoral dissertation], Tianjin University, 2004 (In Chinese) [6] T.Fang and P.Xue: Vibration theory and application.

Apart from these, the influence of other RSW parameters such as welding time, electrode material and shape, pre and post-treatment of material, etc. are also highlighted which affects the metallurgical, physical, and mechanical properties of weld joint [5].
However, to effectively create a portable RSW machine, several factors need to be taken into account.
Influence of welding parameter on mechanical properties and microstructural features of resistance spot welded dual phase steel sheets joint.
Weldability and mechanical properties of similar and dissimilar resistance spot welds of three-layer advanced high strength steels.
Investigation of Mechanical Properties of Galvanized Automotive Sheets Joined by Resistance Spot Welding.

This study investigates temperature behavior under key SPIF parameters that affect frictional heat, including tool rotational speed, diameter, direction, and wall angle.
This study utilizes a FLIR Lepton 3.5 LWIR camera for consistent thermal monitoring, positioned beneath the workpiece holder to observe the heat-affected zone directly.
Temperature distribution captured by infrared camera during the ISF process. 3.3 Design of experiment Table 1 summarizes the parameters used in this experiment, and Table 2 details the experimental factors.
Summary of all factors utilized in the experiment. 3.4 Forming Procedure The specimens were obtained from a total of six experiments.
Boopathi, Real-time applications and novel manufacturing strategies of incremental forming: PSG College of Technology, Coimbatore, India (2021) [7] Liu Z, Li Y, and Meehan P, An Experimental investigation of mechanical properties, formability and force measurement for AA7075-O aluminum alloy sheets formed by incremental forming, Int.