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Online since: December 2024
Authors: Marisa Pechyen, Siripan Metanawin, Tanapak Metanawin
The dyeing ability, mechanical and thermal properties, and crystalline structure of the PP, PLA, and PP/PLA fibers were investigated.
The resulting materials were characterized by mechanical properties, differential scanning calorimetry (DSC), ultraviolet-visible spectrometer, and X-ray diffraction (XRD).
Fig. 1 shows the mechanical properties of the PP, PLA, and PP/PLA fiber.
However, PLA is more brittle and has lower elongation properties.
The mechanical properties showed that the tenacity of the PP100 and the PLA100 were 3.1 g/denier and 0.5 g/denier, respectively.
Online since: November 2025
Authors: Saad K. Shather, Tahseen M. Salman, Baraa M.H. Albaghdadi
MAF provides uniform finishing, improves surface properties like fatigue resistance by inducing compressive stresses, and is ideal for complex geometries.
The causes of fatigue failure are numerous, including factors such as: Fig. 5.
Environmental Factors: Exposure to aggressive environments (chemicals, humidity, etc.) can accelerate fatigue. 8.
Surface Mechanical Attrition Treatment (SMAT): SMAT is known to improve fatigue properties through Nano crystallization and inducing compressive residual stresses. 2.
In 2017, Jiang Guo et al. [22] studied the effects of abrasive type and size on polishing force, MRR, wear of magnetic abrasives, and surface properties quantitatively.
Online since: July 2015
Authors: Antonio Piccininni, Gianfranco Palumbo, Luigi Tricarico, Vito Piglionico
In such a scenario, Al alloy components (bonnets, doors, front structure, wings, crash elements and bumpers) are massively adopted since able to reach a suitable combination of improved surface quality and mechanical properties [2].
Finite element (FE) simulations offer the possibility to investigate the process, but an accurate evaluation of the Coefficient of Friction (CoF) [8] as well as a proper material modelling (in terms of mechanical properties and yield behaviour) are necessary to build up a reliable model [9,10].
The mechanical, anisotropic and formability behaviour was evaluated by means of tensile tests assisted by a Digital Image Correlation (DIC) system.
The mechanical characterization was carried out cutting 0.6 mm thick dog bone specimens (gauge length equal to 100 mm and width to 15 mm) from a single sheet in AA6061-T6.
Adopted levels of the factors investigated by CCD plan.
Online since: May 2011
Authors: Kai Wang, Lian Yu Wei, Shi Ning Li, Shi Bin Ma, Yang Feng Wu
Temperature is one of the most important factors affecting the design and performance of both flexible and rigid pavements.
Finite Element Model Of Cement Concrete Layer Overlay On Old asphalt Pavement  By establishing three-dimensional finite element model ,the paper calculated parameter that affect mechanical properties of pavement structure, in which ANSYS software was adopted, pavement structure layers deadweight was ignored and assuming that earth subgrade bottom is fixed and four edges is free.
Online since: June 2011
Authors: Y.Y. Yao, Li Ping Zhao
Furthermore, on the basis of studying on the influencing factors of flexible three-dimensional microstructure’s dimensional stability, it can be proved that the present method has important application value for improving the manufacturing quality of the flexible three-dimensional microstructure.
During the process of repeated positioning based on image vision measurement, the printing accuracy of three-dimensional microstructure is influenced by several reasons, which will make the actually position deviated from the ideal position, such as the image noise error, the quantization error, and the image distortion of the cross-circle caused by that the flexible materials are not smoothly, the optical properties are inconsistent or the flexible deformation is appeared.
The unevenness distortion error of imaging plane is due to the unevenness of flexible substrate materials, for example, the flexible materials are not smoothly, or the optical properties are inconsistent or the flexible deformation.
At first, the unevenness of imaging plane brings out the image distortion, and then affects the angle of incident light in the imaging process.
Fourthly, the initial position of center is only related to the matching start, but it cannot affect the final position.
Online since: December 2012
Authors: Qi Cai Wang, Shi Sheng Lin, Jin Ping Man, Xue Ying Bao
Regardless of the load-bearing and non load-bearing wall, both of them are required to have sufficient shock strength and good fire, insulation, seismic, sound insulation, impermeability and other properties, and also can achieve a decorative effect.
Material selection cannot be tested one by one, together with the different wall pressure, and whether the preparation is reasonable or not, all these aspects directly affect the quality and cost of the project.
We call such factors Evaluation Indexes.
In our case, since there are so many factors influences the selection of wall material, and there are strong connections between the factors, the most convenient way to quantify the weights is the AHP method.
Table 7 Evaluation Indexes of Wall Materials* Indexes Material 1 Material 2 Material 3 Material 4 Material 5 Production Technology Level 110 121 119 108 109 Application Technology Level 98 85 98 101 103 Physical Property 106 105 120 132 133 Mechanical Property 101 98 83 94 108 Durability 99 89 107 89 90 Applicability 78 69 95 87 88 Resource Consumption 105 68 90 120 108 Energy Consumption 97 96 107 88 93 Waste Discharge 100 103 86 79 77 Environmental Benefit 87 78 67 89 79 Production Economic Performance 125 128 109 110 107 Application Economic Performance 78 69 87 88 79 *The average index for each wall material is 100.
Online since: September 2014
Authors: Konja Knüppel, Iwan Nikitin
The great effort needed to identify their causes and a lack of disturbance descriptions have been discovered as factors jeopardising efficient disturbance management measures [3].
The benefit of distinguishing by different types of order processing is that it already encompasses many properties characterising a specific shop floor such as the ratio of delivery time vs. lead time, the amount of parts produced per unit of time or the number of variants [9: 48].
Causal factor chart.
A newly developed causal factor chart illustrates the qualitative interdependencies of the shop floor's target variables, thus helping users to assess how their specific disturbances affect the target variables of the production system.
Nyhuis, A Universal Approach to Categorize Failures in Production, International Journal of Mechanical, Industrial Science and Engineering, Vol:8, No:02 (2014) 4-6
Online since: October 2009
Authors: Takahiro Niki, Kazuhiro Ogawa
Introduction The details on the coating formation mechanism and properties of the cold sprayed layers in the cold spraying technique have not been elucidated thus far.
This critical velocity depends on the mechanical properties of the substrate and the particles, the presence of an oxide layer, and the diameter of the particles.
From the results of the above studies, it can be concluded that the factors that influence the deposition efficiency in cold spraying are: (1) gas temperature, (2) particle mass (diameter), and (3) particle velocity.
All of these factors depend on the kinetic energy of particles.
The particle diameter and spray conditions are found to affect the quality of the deposited layer.
Online since: February 2012
Authors: Mei Yang, De Zhi Zeng, Da Jiang Zhu, Yuan Hua Lin, Gang Tian, Fei Liu
Pits preferentially occur either in the weld metal or in the heat affected zone.
Existing research results show that factors influencing corrosion resistance of DSS are dual phase scale and the distribution of the alloy element in each phase [6-8].
Introduction of Anticorrosion Property in Weld Joint of Duplex Stainless Steel.
Corrosion Resistance Properties of Duplex Stainless Steels Welded Joints.
Effects of Heat Input on Mechanical and Corrosion Properties of Duplex Stainless Steel Tubular Welded Joint[J].
Online since: November 2015
Authors: G. Rajagopal, T.R. Tamilarasan, R. Sathish Kumar, R. Rajendran
Bath Loading, which is the ratio of surface area to the volume of the bath, is a principal factor as it not only influences the deposition but also affects the phosphorous content in the deposit [1-4].
Due to the need for improved properties of microhardness, corrosion and tribological behavior, the addition of many soft and hard particles like SiC, B4C, Al2O3, ZnO2 and TiO2 in the electroless Ni-P matrix gained importance [5-7].
The mean of the selected parameters for each level of factors is determined and the delta statistics is calculated as a difference in the maximum SNR to minimum SNR of a particular parameters.
He, Structure and properties of Ni-P-graphite-TiO2 composite coating, Surf.
Liu, X.Bian, J.Liu, C.Yang, X.Zhao, J.Fan, K.Zhang, Y.Bai, H.Xu, Y.Liu, T.Guo, Structure and Properties of Ni-P-graphite-TiO2 composite coating, Surf, Eng. 31 (2015) 420-426.
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