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Online since: July 2019
Authors: Stefania Franchitti, Carmine Pirozzi, Angela Ferrigno, Rosario Borrelli
In order to study the influence of orientation and location in the build chamber on such properties several specimens were EBM manufactured with different growing direction.
All the specimens were scaled according to the ARCAM recommended scale factors (1.0092 for x and y direction and 1.0132 for z direction) in order to take into account for the thermal shrinkage occurring after the melting.
For this type of surfaces adhesive properties are guaranteed and painting and bonding processes are supported, on the contrary, for application requiring hydrophobic properties, post processing activities are necessary to reduce the high level of roughness.
Molinari, Microstructure and mechanical properties of Ti-6Al-4V produced by electron beam melting of pre-alloyed powders, Rapid Prototyping Journal 15 (2009) 171–178
Argenio, Study on the Factors Affecting the Mechanical Behavior of Electron Beam Melted Ti6Al4V, Journal of Materials Engineering and Performance 26 Issue 9 (2017), 4491-4499, DOI 10.1007/s11665-017-2894-1
Online since: September 2014
Authors: Quan Chen Gao, Jian Guo Wang, Xiao Yan Wang, Jie Liu, Bin Jiang, Wei Wu
Ultrasonic testing; Porosity; fluid-solid coupled; Experimental analysis Abstract: Due to the internal structure of red sandstone is loose, the influence factors of acoustic velocity are variety, it is necessary to make a quantitatively research on the influence factors.
Besides ultrasonic wave measurement, some scholars analyze the cracks development law of coal rock in other methods[4], in order to lay a soil basis for the further study of the physical and mechanical properties of the rock.
This section based on the ultrasonic wave velocity of rock in the water, oil before and after the coupling comparison to analyze the different liquid of holes affects the mechanical properties of red sandstone, and tries to analyze cause.
Experimental Research on Acoustic Wave Velocity of Coal Measures Rocks and Its Influencing Factors[J].
Testing study on seepage properties of broken sandstone[J].
Online since: December 2024
Authors: Yeoh Cheow Keat, Pei Leng Teh, Sri Shalni Palaniandy, Wern Ming Che, Wee Chun Wong
The conductivity percolation threshold was found at 1000 mesh with enhanced mechanical and electrical conductivity properties simultaneously.
These factors can lead to weakened load transfer and compromised mechanical performance [11].
However, extremely fine particle sizes may result in weaker mechanical properties due to agglomeration or inadequate dispersion.
Mishra, Synthesis, Mechanical and Thermal Properties Of Carbon Black/Epoxy Composites, Int.
Yeoh, The Properties Of Epoxy/Graphene Conductive Materials Using High Speed Mechanical Stirrer And Bath Sonicator, Mater.
Online since: December 2012
Authors: H.F. Lopez
Accordingly, in this work an overview of the main microstructural factors that impact the mechanical properties, as well as the effect of interstitials such as carbon and nitrogen.
In addition the role alloy pre-straining and heat treating on the amount of e-martensite and on the exhibited mechanical properties is described.
Mechanical Properties.
In addition, the alloy posses good fatigue and mechanical properties and is widely used in the design of HIP implants.
The main microstructural feature is related to the development of e-martensite and its role on the exhibited mechanical properties.
Online since: July 2006
Authors: John Campbell, Murat Tiryakioğlu
Mechanical properties as a function of DAS measured experimentally for an Al-7Si-0.4Mg alloy [12] and for Al-3Mg alloy predicted here from data by [6].
The widely observed reduction of mechanical properties [3,12] with increased DAS (Fig. 3) has been generally assumed to be a kind of Hall-Petch effect.
(vi) Statistical Distribution of Entrainment Defects Mechanical properties of cast aluminium alloys are determined to a great extent by entrainment defects.
When we model statistically the largest entrainment defect size, modelling of mechanical properties, especially their scatter becomes possible.
These factors are required to be taken into account in realistic computer models. 3.
Online since: July 2023
Authors: Mashuri Mashuri, Muh.S. Sapri
Especially in materials, the materials needed are quality materials and have high mechanical properties.
The fiber functions as a reinforcing element that determines the mechanical properties of the composite because it transmits the load transmitted by the matrix.
To study the mechanical properties of these polymer composites, it is necessary to test the mechanical properties by providing a certain thermal variation.
This increase in storage modulus indicates that the addition of carbon concentration greatly affects the mechanical properties of the composite.
[5] Oroh, J., P.Sappu, F. and Lumintang, R. (2013) 'Analysis of Mechanical Properties of Composite Materials from Coconut Coir Fiber', p. 10
Online since: February 2011
Authors: Paolo Deodati, Riccardo Donnini, Alessio Mezzi, Saulius Kaciulis, Nadia Ucciardello, Roberto Montanari, Claudio Testani, Majid Kazemian-Abyaneh
This leads to stable mechanical properties as evidenced by hardness, tensile and FIMEC instrumented indentation tests.
Therefore, the composite can operate at the maximum temperature (873 K) foreseen for its aeronautical applications without remarkable modifications of its microstructure and degradation of mechanical properties.
Mechanical characterization The mechanical properties of the composite in as-fabricated condition and their evolution after heat treatments have been investigated by means of instrumented penetration, tensile and hardness tests.
Another factor which contributes to preserve the mechanical properties is the grain size stability after long-term heat treatments.
This is confirmed by mechanical tests (FIMEC indentation, tensile and hardness) which evidence that mechanical properties remain stable also after the most severe long-term heat treatments considered here.
Online since: April 2020
Authors: Ragil Widyorini, Tibertius Agus Prayitno, Tamaryska Setyayunita, Erlina Nurul Aini
Besides the pressing method, other factors can affect particleboard properties.
Between the two factors used in this research, press temperature had more clear effect in thickness swelling and water absorption properties.
The increase in ester linkage that being formed positively influenced board mechanical properties [8, 10].
Each factor used in this research gave different effect to particleboard properties.
The addition of starch tended to negatively affect the physical properties of the boards, such as thickness swelling and water absorption but positively affected mechanical properties of the boards, such as internal bond strength and bending strength.
Online since: April 2024
Authors: Sadek Gouasmi, Sid Ahmed Reffas, Youcef Goradia
This parametric approach for the mechanical properties of bridges is used to better visualize and quantify the biomechanical behavior of dental bridges. 1.
Boundary Conditions and loadings. 2.5 Properties of materials The mechanical properties of the materials of the dental bridge fixed by implants, and of the mandibular bone of the present study, are summarized in Table 3.
Mechanical Properties of the constituent models.
This finite element analysis makes it possible to study the influence of the mechanical properties of the implants on the distribution of the biomechanical stresses in the implant and the bone.
Asmatulu, Mechanical Properties of Highly Porous PEEK Bionanocomposites Incorporated with Carbon and Hydroxyapatite Nanoparticles for Scaffold Applications.Progress in Biomaterials. 8 (2019) 211-221
Online since: January 2014
Authors: C.A. Tang, Xiao Xi Men, Zhi Hui Han
The simulation results show that the effect of these two factors on fractures initiation, propagation and rockmass stability under the hydraulic fracturing could be remarkable.
Introduction Natural fracture is the main store and flow place of groundwater, the connectivity and distribution of nature fracture has a significant effect on the mechanical properties and permeability characteristics of rockmass.
Figure 1 is Weibull distribution for mechanical properties of materials with homogeneity index m value 1~5.
Fig.1 Weibull distribution for mechanical properties of materials with different homogeneity indexes m Numerical experiments Model set In this section, numerical model is divided into two groups, simulated fracturing process of rockmass which with different fracture angles and different fracture length.
Influence of heterogeneity of mechanical properties on hydraulic fracturing in permeable rocks[J].
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