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Online since: October 2016
Authors: Maciej Suliga
Analysis of lubrication conditions and mechanical properties of drawn wires In the high speed multi-stage drawing process the main physical parameters, which have significant impact on the wire surface layer, and thus the properties of drawn wire, are friction, heat deformation and thermal lubricant resistance and its rheological properties.
In Figure 4 the amount of lubricant on the wire surface and in Table 2 mechanical properties for f1.7 mm wires drawn in hydrodynamic dies were presented.
Mechanical investigations confirmed that too high increase of the pressure in the hydrodynamic die at high speeds of 25 m/s, resulted in further deformation of the wire and an increase in its strength properties, the deterioration of plastic properties and a decrease in the number of twists.
Thus, at the same final wire diameter of 1.7 mm and very good lubrication conditions the increase of the drawing speed of 5 to 20 m/s did not affect significantly the mechanical properties of the wires.
In high speed wire drawing process the most important factors influencing the roughness parameters are layers of lubricant, ie. pressure.
Online since: January 2016
Authors: Dóra Szagri, Balázs Nagy
Thermo-mechanical properties of fiber reinforced raw perlite concrete.
Factors affecting the thermal properties of concrete and applicability of its prediction models.
Experimental research for the effect of high temperature on the mechanical properties of steel fiber-reinforced concrete.
Thermal and mechanical properties of fiber reinforced high performance self-consolidating concrete at elevated temperatures.
Experimental study of the thermo-mechanical properties of recycled PET fiber-reinforced concrete.
Online since: December 2022
Authors: Azhar Badaoui, Ramdane Kahlouche
The sulfate attack from internal or external sources is one of the most factors affecting the durability of concrete structures [17].
This study investigates the behavior of NaOH-activated slag in order to contribute to understanding their properties; this binder is compared with slag cement and Portland cement (PC) in terms of mechanical properties, drying shrinkage, hydration heat and durability against sulfuric acid and sulfate attack.
Roy, Early activation and properties of slag cement, Cement and Concrete Research. 20(6) (1990), 961-974
Pratt, Factors affecting the strength of alkali-activated slag, Cement and Concrete Research. 24(6) (1994) 1033-1043
Payá, Mechanical and durability properties of alkali-activated mortar based on sugarcane bagasse ash and blast furnace slag. 
Online since: August 2017
Authors: Monica Cîrstoiu, Mihaela Boț, Roxana Bohîlțea, Diana Comandașu, Elvira Brătilă, Claudia Mehedințu, Petre Brătilă
Material and Methods The biomechanical properties of biological grafts can be divided into two major classes, respectively structural and mechanical properties.
Mechanical properties on the other hand describe the intrinsic mechanical behavior of a single material (“material properties”).
The mechanical properties of a graft material will affect the clinical efficacy of that material.
Compared to the use of synthetic meshes, biological grafts do not have the risk of rejection or erosion, important adverse events affecting the patient’s quality of life.
Fashokun, Pelvic organ prolapse in women: An overview of the epidemiology, risk factors, clinical manifestations, and management, www.uptodate.com, (2016)
Online since: December 2012
Authors: Li Qiang Huang, Xiao Jin Gao, Xin Li
The result showed that the anti-fogging properties of the coated film were better and the mechanical properties of the coated film enhanced in some sort.
Test of Mechanical Property.
The mechanical property was tested according to GB/T 13022-1991.
The factors of the orthogonal experiment included silica sol, Span 80 and pH of the solution.
Analysis of Mechanical Property.
Online since: February 2014
Authors: Supatmi Supatmi, Dwi Astuti Wijayanti, Soekrisno Soekrisno, Ragil Widyorini, Harini Sosiati
Properties of the Treated Kenaf/Polypropylene (PP) Composites Harini Sosiati1, a, Supatmi2, D.
The dispersion characteristic of the fibers within the polymer matrix has been suggested as one of the significant factors affecting the composite properties.
Properties of untreated and treated kenaf/PP composites.
This led to good compatibility between fibers and matrix due to the hydrophobic nature of PP, resulting better composite properties as depicted in the properties of S10/PP (Fig.2).
Ling, Mechanical and physical properties of kenaf-derived cellulose (KDC)-filled polylactic acid (PLA) composites, BioResources, 7, 2 (2012) 1643-1655
Online since: June 2015
Authors: V. Balasubramanian, K. Umanath, S.T. Selvamani, K. Palanikumar
The solid state connection method, it produces welds with reduced distortion and improved mechanical properties.
The austenitic stainless steels are wide employed in completely different industrial applications like building, nuclear trade and automobile industries owing to their special mechanical and metallurgical properties.
The sensitivity equations were obtained by differentiating the developed empirical relation with respect to the factors of interest such as Friction pressure, Forging pressure and rotational speed, which were explored here.
The dependence of crack properties on the Cr/Ni equivalent ratio in AISI 304L austenitic stainless steel weld metals.
The dependence of crack properties on the Cr/Ni equivalent ratio in AISI 304L austenitic stainless steel weld metals.
Online since: September 2013
Authors: Nejc Thaler, Miha Humar
Mechanical, fungicidal, and sorption properties were determined according to the standard procedures.
Ageing of beech wood resulted in a big drop in all of the tested mechanical properties, but showed no significant differences in fungicidal properties.
Service life depends on wood species, extractive content, water absorption properties, use conditions, and some other factors.
The rate of liquid water absorption in wood depends on several factors.
Although beech wood showed a large drop in all of the tested mechanical properties, no difference was found in fungicidal properties.
Online since: November 2013
Authors: Charoen Nakason, Chesidi Hayichelaeh, Anoma Thitithammawong
Results show that distribution of processing oil in the ENR/PP TPV is important because it can affect the elastomeric properties.
Furthermore, redistribution of the oil occurred upon cooling down, due to crystallization, affecting the morphological, the mechanical, and the rheological properties [5].
Mechanical properties of ENR/PP TPVs Mixing method Mechanical properties Tensile strength (MPa) Elongtion at break (%) Tension set (%) 1 2 3 8.3±0.2 8.2±0.1 7.2±0.1 339± 1.9 275±16.5 212±12.5 30.8±0.3 36.2±0.8 48.5±0.5 Table 4.
X-Ray diffractograms of ENR/PP TPVs with different mixing methods Dynamic mechanical properties Figures 1(a) and 1(b) show dynamic mechanical properties of the ENR/PP TPVs prepared with various mixing methods.
As a consequence, the TPVs prepared with mixing methods 2 and 3 provided inferior tensile and dynamic mechanical properties.
Online since: November 2013
Authors: Surasak Suranuntchai, Prarop Kritboonyarit, Pongsak Dulyapraphant, Nipon Denmud, Ekkachai Kittikhewtraweeserd
They directly affect the mechanical properties of a casting.
Therefore, plunger speed and ingate area are two main factors affecting the speed of liquid metal entering the cavities.
Fig.9 Mechanical properties of the as-cast HPDC cast, compared with those of squeeze casts both as-cast and heat treated.
Mechanical properties of 6 groups of castings are tested as shown in Table 2 and Fig. 9.
With lower gas content inside the casting, parts can be heat treated to increase theirs mechanical properties. 2.
Showing 2571 to 2580 of 26166 items