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Online since: February 2017
Authors: Song Lin Ding, John Mo, Shuang Yi, Guang Xian Li
Recently, titanium alloys have been widely used in industry owing to their excellent physical and mechanical properties.
Introduction Titanium alloys have been widely used in aerospace industry, mechanical engineering, automotive engineering, because their excellent properties including high tensile strength and toughness, light weight-strength ratio and extraordinary corrosion resistance.
It has excellent mechanical, electrical, thermal and optical properties.
Free surface, back surface and chip thickness which are important factors indicating the effectiveness of the new coolant, were analysed.
Guo, A new multi-view approach to characterize 3D chip morphology and properties in end milling titanium Ti–6Al–4V, Int.
Online since: October 2011
Authors: Lian Fa Yang, Xian Chang Mao, Zhi Hua Tao
Loading path is one of the most efficacious factors which affect the THF process and quality of hydroforming parts.
The quality of these parts is affected by microstructure defects, part geometry, material properties, tribological factors and loading path, i.e. internal pressure and axial feeding respectively relate to time curves.
Parameters of loading path are affected by material properties, blank geometry, friction condition of tube-die interface, part geometry.
In a researching of free bulging process, the properties of strain path, i.e. the ratio of axial and circumferential strain increment, localized instability and buckling instability have been analyzed by Z.
Based on experimental experience and forming behavior, properties of optimal loading paths are summarized and speculated by many experiments.
Online since: January 2012
Authors: Ana Almerich-Chuliá, Pedro Martin-Concepcion, Jose Miguel Molines-Cano, Juan Rovira-Soler
Currently, the reinforced concrete with GFRP bars is designed using the principles of Ultimate Limit States, ensuring a sufficient strength (with a design safety factor affecting loading and material strength), determining the failure mode and verify adequate adhesion between the materials.
The mechanical properties of these bars, depending on the diameter, were obtained in these tests, and after certification by CSIC [9], the following values are taken as characteristic mechanical properties for the design and cross-check of reinforced concrete elements.
Shear properties f [mm] Failure load [kN] Characteristic Tensile Strength [kN] 12 11,6 10,22 Table 5.
The different mechanical properties of GFRP bars, however, affect shear strength and must be considered.
“Fiber-Reinforced-Plastic (GFRP) Reinforcement for Concrete Structures: Properties and applications”.
Online since: March 2013
Authors: Mohd Ezree Abdullah, Mohd Rosli Hainin, Kemas Ahmad Zamhari, Mustafa Kamal Shamshudin, Mohd Khairul Idham Mohd Satar
This can lower its energy consumption and pollution by reducing the mixing and compaction temperatures of the asphalt mixture without affecting its properties.
Cecabase RT 945 enables to reduce the asphalt mix production and lay down temperature by 20 to 40°C and keeps the same mechanical properties as a standard HMA [14-16].
The viscosity properties for the binders in the original state, the rutting properties in the original state and after RTFO aging and the fatigue cracking properties at intermediate temperature after RTFO + PAV aging methods were evaluated.
Dynamic Shear Rheometer Test [23] A stress-controlled HAAKE dynamic shear rheometer (DSR) was used with 25 mm parallel plates to characterize the mechanical properties of the control and modified asphalt binders prepared under temperatures ranging from 46 to 70 0C and loading frequency at 10 rad/s (1.59 Hz) [23].
Amirkhanian: High temperature properties of rubberized binders containing warm asphalt additives.
Online since: November 2025
Authors: Haldun Kurama
Small particle size, large surface area, and high porosity are the prominent factors that support the use of nanoclays in many different industrial applications.
Properties of composite and nanocomposite materials.
Balta Calleja (Eds.), Mechanical Properties of Polymers Based on Nanostructure and Morphology, CRC Press, Boca Raton, 2005, Ch. 13, pp. 553-602
Laryea, Polymer–Clay Nanocomposites: Morphology and Physico-Mechanical Properties, Lambert Acad.
Yin, Effect of surfactant concentration on thermal and mechanical properties of poly(butylene succinate)/organoclay composites, J.
Online since: April 2018
Authors: Emanuele Cannella, Chris Valentin Nielsen
However, the main problem with the admixed powder is on the affected final density and mechanical properties [10].
This is because of the dynamic material properties of the sample during sintering.
A number of factors influenced the deviations between samples with the same lubricant.
Forno, “Influence of processing parameters on the mechanical properties of Electro-Sinter-Forged iron based powders,” Jmade, vol. 93, pp. 458–466, 2016
Larsson, “Tribological Properties of Lubricants Used in PM Process.”
Online since: June 2012
Authors: Wan He Xu, Cheng Xu, Chang Geng Wang
In order to analysis and study the factors influencing of measuring the rifle recoil, consider the different methods of support, based on rigid body dynamics equations and collision theory, three kinds of rifle dynamics model, which included the holder, standing and the prone position had been established.
The rifle recoil curve of the different conditions had been calculated, analysis of the effects of different methods of support on the measurement of the rifle recoil.From the theoretically clarify the recoil is not a inherent properties of rifle.
In order to study factors influencing of the rifle recoil measurement, improved the test methods of rifle recoil.
Figure 4 Three attitude rifle recoil curve Conclusion Through the analysis found that recoil was not the weapon's natural, it related to the method of support and other factors in the process of shooting.
Mechanical system dynamics [M] Beijing,Defense industry Publishers 2010 [2] Bao Jiandong.
Online since: April 2015
Authors: Hsi Hsun Tsai, Bo Sung Yang, Jin Cheng Yeh, Ming Shin Tsai, Jing Lun Liao, Shun Yi Wu, Jar How Hsu
Dynamic Frictions between AISI 316L and 3M™ Trizact™ Structured Abrasive Belts during Mirror-like Polishing Bo-Sung Yang1,2, Jin-Cheng Yeh1, Ming-Shin Tsai2, Jing-Lun Liao2, Shun-Yi Wu2, Jar-How Hsu2,* and Hsi-Hsun Tsai1,* 1 Department of Mechanical Engineering, Ming Chi University of Technology, Taiwan 2 Center of Manufacturing Technologies, Shin Zu Shing Co., Ltd., New Taipei City, Taiwan E-mail: 1 hhtsai@mail.mcut.edu.tw, 2 Francis@szs.com.tw Keywords: friction coefficient, AISI 316L, polishing, abrasive belt, austenite stainless steel, metal powder injection molding.
The friction coefficient between the AISI 316L workpiece and 3M™ Trizact™ structured abrasive belt under different rotational speed may affect the polishing efficiency and the cost.
AISI 316L, one of the austenitic stainless steel, is chosen to fabricate the metal case of the jewellery due to the highest corrosion resistance and mechanical properties for versatile applications.
The grit size of abrasive belt is the main factor affecting the dynamic friction coefficient.
Not only the press-on force of the workpiece during polishing, but also the tangential velocity of abrasive belt, are very important factors in order to affect the dynamic friction coefficient.
Online since: January 2012
Authors: Roberto Montanari, Paolo Deodati, Riccardo Donnini, Nadia Ucciardello
Introduction Tungsten is a promising armour material for plasma facing components of nuclear fusion reactors (NFR) because of its low sputter rate and favourable thermo-mechanical properties (high melting point and good thermal conductivity) [1].
Morphology, structure, integrity and mechanical properties of the coatings have been extensively investigated [3-4].
This paper reports some results of an experimental campaign for investigating the microstructural characteristics and the mechanical properties of tungsten samples for fusion applications.
Besides the intensity of the peak, cold-working affects also the background level that is structure sensitive and results a little higher.
In addition, microstructure and properties of the tungsten with higher porosity (9 %) are not stable following heating up to 773 K because of the reduction of porosity and a moderate recovery of defective structures.
Online since: September 2014
Authors: Yong Xian Li, Yan Ji Xie, Song Ping Chen
According to the analysis results, the higher residual stress and the highest concentration of hydrogen are distributed in and surround the heat affected zone (HAZ), and vary with different humidity.
HE is a very complicated process that can affect virtually any metal or alloy and is nearly always unpredictable, few pages or even books would not be enough to fully describe it [2, 3].
(4) Where Q is the energy input rate, ff and fr are the fractional factors of the heat deposited in the front and rear quadrant, a, b, cf and cr are heat source parameters.
Rate-independent elastic-plastic constitutive equation is considered the von Mises yield criterion, temperature dependent mechanical properties and linear kinematic hardening rule.
(5) where {Dd} is divided into {Dde} for the elastic range and {Ddp} for the plastic range, {c} is a parameter to reflect the stress increment due to the dependence of the physical and mechanical properties of the material on temperature, {dσ} is the stress increment, {dε} is the strain increment and dT is the temperature increment.
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