Search results

The flexural property was analyzed.
The local stability of flange plate is one of the main factors that affect the overall bending capacity of GFRP I-beams.
Reference [1] Zhang Yulong, Handbook of advanced Composite Manufacturing Technology, Mechanical Industry Publishing House, Beijing, 2003, in chinese
[2] Lu Yun, Zhu Shijie, Advanced Composite Materials, Mechanical industry publishing house, Beijing, 2004, in chinese
[4] Zhang wei, Zhang Ming-yi, Gao Li-tang, Experimental Study on the Mechnical Properties of Composite Middle Beam in Foundation Pit Support, J.

With the development of computer power and simulation methods, kinetic modeling becomes a powerful tool to clarify the key factors that affecting different phase distribution and guide the quantitative control of FGCC formation during sintering.
The simulation results of Ekroth et al.agreewell the experimental data, based on which the diffusion and thermodynamic properties of the alloy system are concluded to be two major factors that affect the gradient formation.
These interfaces can weaken the mechanical properties of FGCC.
Therefore, the carbon diffusion and its relating phase reaction processes was a key factor affecting the cobalt gradient in the WC-Co hardmetals.
Zhang, Mechanical properties and wear resistance of functionally graded WC-Co, Int.

Introduction Temperature is one of the main factors affects the mechanical properties of rock.
These cases must take into account the thermo-physical and mechanical properties of rocks at high temperatures.
Houper[1] inspected some mechanical properties of the granite under different heat treatment temperatures.
Ferrero and Marini[2] performed destructive tests on two kinds of marble under different temperatures, analysized the changes of porosity in different temperatures, and pointed out that the crack density is the main factor affecting the marble cracking.
With the curves of mechanical properties of granite at high temperature through trial, Xu[4] pointed out that the compressive strength reduced as the temperature increased, and the Poisson's ratio was affected by temperature.

In this study, to estimate the fire resistance performance of structural beam made of SM 400, analysis using not only mechanical, thermal properties at high temperature of the SM 400 but theories of heat transfer and thermal stress were conducted.
Mechanical and thermal properties at high temperature of SM 400 were given in the Table 2 to Table 4, respectively.
Mechanical properties were tested by KS D 0026 [4] Fig 1.
Mechanical properties of SM 400 at high temperatures Sorts Properties Temperature Regression equation SM 400 Yield strength T⊆200℃ Cold value (235 MPa) 200℃properties of SM 400 at various temperatures.
Conclusions The fire resistance performance of H-section beam made of SM 400 was calculated using mechanical and thermal properties and got the followings

The research on the rebar corrosion and its effect on the mechanical properties of rebar is increasing [8-10].
The samples (Φ14mm ×450mm) are used for corrosion rate measure and mechanical properties tests.
The tensile mechanical properties, including yield strength, tensile strength and elongation, are tested by a hydraulic pressure universal testing machine.
And then the corrosion rate calculation and mechanical properties tests are carried out.
These will affect the strength properties of rebar.

The uniformity of heating applied across the entire width and length of the slab or billet is critical in the achievement of customer properties regardless of the chemistry.
This factor is often not given high priority when evaluating mechanical property diversions on an industrial scale.
The combustion and the heat transfer process influences the deformation schedule, recrystallization and the resultant mechanical properties of the final hot rolled product.
One customer reports that the surface properties improved so much with the oxy-fuel combustion practice that their skin-pass operation could be eliminated reducing operational cost. [5] The reheat furnace process metallurgy directly affects the prior austenite grain size before the hot rolling deformation step.
Consequently, mechanical properties through the thickness and across the width will vary considerably and deteriorate, especially toughness, yield-to tensile ratios and fatigue properties Effect of Reheat Furnace Process on Mechanical Properties Results of several studies confirmed the importance of proper furnace control in industrial trial production of 40-mm plates with specified minimum yield strength (SMYS) of 450 MPa at the 5-meter hot rolling mill of Vyksa Steel Works in Russia. [6] The chemical composition of the steel was 0.06% C, 0.20% Si, 1.6% Mn, 0.03% Nb, 0.016% Ti, and additions of Ni, Cu, Cr (Mo).

The internal force factors arose in the structure were compared.
They identified several negative factors affecting on the strength of the joint connections of rods.
Based on the results of the review, the following goals and objectives of the paper can be set up: Goals of the paper: · Creation of the arched frame structure made of brittle material; · Investigation of the factors affecting on the strength and stiffness of the arch structures.
On the basis of these tensile properties load capacity of the whole structure was determined - 3500 N or 350 kg.
Mechanical properties of polymer composites reinforced with knit fabrics made of high-strength aramid fibres (2009) Fibre Chemistry, Springer, pp. 53–55

The Properties and Structure Stability of Martensite-Bainite Dual Phase Structure in Bearing Steel Lei Tian1,3,a, Guanhong Kong2, Xueying Cui1,3, Rui Feng1,3, Shengli LI1,3,b 1School of Materials Science and Engineering, Shandong University, Jinan 250061, China 2Science and Technology Quality Department, Jinan Iron and Steel Group, Jinan 250101, China 3Shandong Province Engineering Research Center of Large Size Alloy Structural Steel Bars atianleisdu@163.com, blishengli@sdu.edu.cn *corresponding author Keywords: martensite-bainite dual phase structure; structure stability; mechanical properties; temper resistance Abstract.
The Martensite-Bainite(M/B) dual phase structure has excellent combined processing properties which can be applied to the bearing steel.
The test of mechanical properties include wear-resistance and impact toughness.
The mixing of the hard phase and the soft phase, also affect the wear resistance.
The conclusions are as following: M/B dual-phase structure of G55SiMoV mill bearing steel has excellent mechanical properties than single phase martensite.

The compatibility of mechanical properties and safety performance of vehicle parts such as b-pillar has been proposed that different mechanical properties are needed in different regions of the same parts, namely tailored properties.
Then, different mechanical properties can be achieved in different zones throughout the specimen.
Hence the blank of the transition region reached its lowest cooling rate considering the two factors, resulting the lowest hardness.
When the die temperature was set at 400˚C, the hardness with 20MPa holding pressure was higher than others, which resulted by considering the two factors.
Hot forming of boron steels using heated and cooled tooling for tailored properties.

The key factors in all cases are the selection of the brazing fillers and the braze design.
It was clearly seen that the plasticity of the filler metal is the main factor affecting residual stresses for the joint geometry in this current work.
No mechanical properties for CuSnTiZr are reported in literature and the filler is provided only in powder form.
A three layer system using particle reinforced brazing fillers is a solution where lower cost and good mechanical properties can be achieved at the same time.
Conclusion Given two materials to be joined, the most important factors affecting the residual stress in the joint are the joint geometry, brazing temperature and the plastic behaviour of the brazing alloy.