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Moreover, mechanical properties were also analyzed and found to be comparable between diverse sources, so the authors claim that these results support the potential use of recycled plastic by prosumers.
Nevertheless, since this type of plastic has already been processed, it has also undergone thermomechanical and thermo-oxidative degradation, affecting its mechanical and rheological properties [6].
The feasibility of this procedure for FPF manufacturing is evaluated considering the influence of two factors: rPET blend percentage and particle size.
This difference could be an effect of the layer-upon-layer and parallel-pattern deposition strategy, that could be affecting the mechanical behavior of the material when compared to continuous one-piece specimens.
Thermal, Rheological and Mechanical Properties of PETG/rPETG Blends.

Abstract: In order to make the design criteria of metallic sealing rings, and improve the mechanical properties of metallic sealing rings used in aviation engine, using finite element analyzing the stress distribution of three corrugated sealing rings with different corrugated radius.
Because of its "seal ring thin-walled, large deformation, precision" on the whole, the development of metallic sealing rings are extremely difficult, and the design analysis process is affected by many factors, design analysis affected by many factors.
Through the calculation of the finite element with the stress condition to optimize the structural parameters of sealing ring, to obtain better mechanical properties, and also to get the design rules of the sealing ring. 1 The geometric model of metallic sealing ring Metallic sealing ring is composed of high temperature alloy steel.
Under high temperature, the strength of the material is still very good, its oxidation resistance, fatigue, fracture toughness, plastic and other comprehensive performance are very good also, the basic mechanical properties parameters are shown in Table 1. [3,4,5] The thickness of this kind of seal ring in general 0.1mm --0.5mm, here we selected thickness of t=0.2mm.
(2) In the condition of 650 ℃, after compared the stress distributions of metallic sealing rings with different corrugated radius, we can find that the use of larger radius waviness can effectively reduce the stress of metallic sealing ring, and improve the mechanical properties of metallic sealing ring

It is widely used in many fabrication devices due to its characteristics properties such as applications for motor housings, manifolds, marine components and pumping cases.
The properties of aluminium LM6 can be found from our previous paper [4].
It shows that peak current is dominant factor affecting MRR.
It can be concluded that peak current is the main factor affecting MRR, EWR, and Ra.
Other factors, voltage, pulse on-time and pulse-off time show less significant factor affected the responses.

A full 2-level factorial design experimental technique was used to identify the significant factors which affect the surface roughness of casting.
Kumar et al. [6] studied the optimization of tensile properties of evaporative pattern casting process using Taguchi method with L9 orthogonal array.
Gunasegaram et al. [7] used a five-factor, 2-level, 1/2 fractional factorial design with 4 center points to identify critical factors affecting shrinkage porosity in permanent mold casting.
References [1] Bokhyun KANG, Yongsun KIM and Kiyoung KIM: Density and Mechanical Properties of Aluminum Lost Foam Casting by Pressurization during Solidification, J.
Farnsworth: Identification of critical factors affecting shrinkage porosity in permanent mold casting using numerical simulations based on design of experiments, journal of materials processing technology 2 0 9, p. 1209–1219 (2009).

However, this significantly compromises mechanical strength, leading to gaps and deterioration of material properties (breathing resistance, dustiness, etc.).
The authors tested this material for mechanical, physical, and biophysical properties, confirming its high capture efficiency and thus recommending it for respirator manufacturing.
According to the authors, this will improve the mechanical properties of the polypropylene material and simplify the process of manufacturing filtration respirators.
Kabir, A Critical Review on Reusable Face Coverings: Mechanism, Development, Factors, and Challenges.
Sharovatova, Research of operational properties of household fabrics for production of protective masks.

Tear propagation is the typical fracture mode of fabric laminates, which is affected by stress and damage shape (size).In this paper, envelope material which is mainly composed of fabric laminates used in stratospheric airship is the objective of the study.The tear propagation and tearstrength of Cross-shaped specimens with initial damage whichwere in different situations (size, angle and shape) were studied through biaxial tensile test which was conducted in a tailor-made testing machine, and the strength is noted simultaneously to gain the mechanical properties of the specimens.
The mechanical property of the envelope material which is commonly used as the major structural material, directly affect the floating height, effective load, sustained flight time and the service life [1].
The stress intensity factors can be written as follow, (2) , which represents the angle between slit propagation direction and slit direction is determined by eq(3)
Fig 7 Simulation process of quadrate initial damage Conclusion Factors that affect the tear property of envelop material under biaxial load are studied through biaxial tensile test, theoretical analysis and finite element simulation, which has guiding significance for designing the structure o airship.
(InChinese) [9] Aeronautics Research Institute of China: Handbook of Stress Intensity Factor (Science Press, China 1993).

Wear properties of R19 Steel are evaluated because it is widely used in making the rail wheel and rail roads over the years.
The Surface morphology plays an important role in affecting the wear rate.
One of the most important factors that affect the coefficient of friction during sliding is the surface texture.
Material and experiments Considering the wide applications of R19 Steel and the wear resistance & hardness properties of Titanium, they were selected as specimens for the study.
[2] J.D.Bressan, D.P.Daros, A.Sokolowski, R.A.Mesquita, C.A.Barbosa:”Influence of hardness on the wear resistance of 17-4PH Stainless steel by the pin-on-disc testing”, Journal of material processing and technology 2008 pg.no 359-363 [3] G.M.Sorokin, V.N.Malyshev:”Criterion of wear resistance for ranking steels and alloys on mechanical properties”, International Journal of material and mechanical engineering vol.1 Iss.6, November 2012

Research on the Mechanical Properties of Pure Stainless Fiber and Its Effect on Textile Processing Yuchai Sun 1,2,a, Zhonghao Cheng 1,2,b, Yanmei Zhang 3,c 1 College of Textile & Clothing Engineering, Soochow University, Su Zhou, 215006, P.
The differences of mechanical properties between stainless steel fiber and traditional textile fibers are the main influential factors that caused difficulties during manufacturing procedure  of woven or knitting of pure stainless steel fiber.
However, very few studies are concerned with information on the main distinguish mechanical properties of stainless fiber.
Among the mechanical properties, the frictional behavior greatly affects their processing, their properties, and the performance of the final products.
The differences of frictional properties between stainless steel fiber and traditional textile fibers are the main influential factors that caused difficulties during manufacturing procedure  of woven or knitting of pure stainless steel fiber.

The selected compositions (table 1) were investigated for physical and mechanical properties (table 2).
Physico-mechanical properties of polymer-bitumen composition.
The resulting series of samples of asphalt concrete were studied for physical and mechanical properties, the results are shown in Fig. 2.
Physico-mechanical properties of stone mastic asphalt concrete.
Summary The results showed that the use of “warm” chemical additives in the PBM composition in the production of crushed stone and mastic asphalt concrete, due to its mechanism of action, ensures the process ability of the mixture at lower compaction temperatures, without negatively affecting the properties of the final product - asphalt concrete.

Thermal damage is a direct consequence of the large difference in thermal properties of the carbon fiber and the polymer matrix.
The two materials are bond together to offer better mechanical properties [3].
Thermal damage is a direct consequence of the large difference in thermal properties of the carbon fiber and the polymer matrix [5].
The heat-affected zone (HAZ) is the area of base material, which has had its microstructure and properties altered by heat intensive cutting operations.
Factors that affecting the HAZ are pulse energy and pulse repetition rate.