Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: July 2024
Authors: Shu Hu Li, Dan Yong Wang, Wen Fang Xing, Hua Zhen Wei
The microstructure of carbon fibers with different properties also varies.
Even with considerable mechanical properties, the microstructure characteristics of carbon fibers produced by different manufacturers or processes are different.
In recent years, many researchers have conducted in-depth analysis of the load-bearing mechanical properties of carbon fibers based on this model.
The mechanical properties of carbon fibers, such as strength and modulus, are related to these defects.
By eliminating defects, the mechanical properties of carbon fibers can be effectively improved.
Online since: January 2005
Authors: Ryoji Nakamura, Shinji Kumai, Hisaki Watari
The mechanical properties of the strip rolled from roll-cast strip were almost as same as that of the strip made from cast ingot.
The microstructure becomes fine by rapid solidification, and the mechanical properties can be improved.
There are some factors which affect on the sticking.
The mechanical properties of the roll-cast strip are almost the same as that of the strip made from ingot.
It is said that the mechanical properties of the roll-cast strip are inferior to that of the strip made from ingot.
Online since: August 2004
Authors: Young H. Kim, Sung Jin Song, Sung Duk Kwon, Seok Soo Yoon, Young Ze Lee
The shape of the backward radiation is affected by various factors such as the beam directivity, frequency characteristics of the transducer, dispersion and scattering of surface wave, etc [7].
This difference means that the other reasons affecting the backward radiation profile should be considered.
It is suggested that the acoustical property change by the accompanied micro-fatigue directly affecting the peak intensity needs to be considered.
Break-in procedure reduced the g value and resultantly suppressed the change of material properties affecting the dispersion relation. 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 2 4 6 8 10 12 Frequency(MHz) Velocity variational ratio(%) A B C Fig. 4.
Curtis: "The use of surface elastic waves in examining surface mechanical properties", in Ultrasonic Testing eds.
Online since: January 2016
Authors: Tadashi Nishihara, Hamed Mofidi Tabatabaei, Takahiro Hara
The results are discussed in terms of residual microstructures and mechanical properties.
A material with a good damping capacity is able to absorb mechanical vibrations or damp them out quickly, which is an important property in applications such as crankshafts and machinery bases [11].
Damping can be expressed through different parameters such as damping ratio or the loss factor.
The loss factors of Zn-22Al superplastic alloy, aluminum and steel sheet were measured as well.
Table 3 Obtained Loss Factor values for different materials Steel sheet Aluminum (6061) Zn-22Al Superplastic vibration-damping sheet Loss factor 0.11 0.12 0.19 0.32 We can confirm that the loss factor of superplastic vibration-damping steel sheet composite is the highest; therefore, we consider it to be a good vibration-damping sheet with a high damping capacity.
Online since: February 2015
Authors: Juan Wang, Chao Shi, Song Song Zhu, Jun Qiang Li
On these bases, the mechanical performance test system of the MR brake were developed, the mechanical performance of the brake was researched used the test system, the brake’s properties: torque vs. speed and yield torque vs. current were obtained.
Shear mode is commonly used in brakes, the effective area of shear mode between the rotor and stator is one of the main factors affecting the performance of the brake.
Mechanical Properties Analysis Using Finite Element Method The more accurate distributing of the magnetic flux density in the working area can be obtained using finite element method, then the mechanical properties can be calculated.
Based on the MR fluid properties and results analysis using finite element method, mechanical properties of the MR brake were calculated, the results show that there is little change of the brake torque with the changing of the speed, and the yield torque increases with the increasing of the current, and the growth rate decreases.
The MR brake, current driver and the damper performance test system were developed, the damper properties: torque vs. speed and yield torque vs. current were test.
Online since: January 2012
Authors: Wei Jun Yang, Peng Wang
Previously, the majority research of strength were about the 28d strength, the study of early age concrete mechanical properties is rarely seen in domestic and foreign, about strength of ceramisite concrete changes with age is even less[1].
Regeneration concretes basic mechanical properties experimental study .Shanghai: Tongji University,2004 [2] Mazhiying.
Steel textile fiber concretes early time mechanical properties law of development experimental study .Beijing: Beijing industrial university,2003 [3] Luocaiyi.
Mixes material concretes early stadium mechanical properties experimental study differently.
Double douped light aggregate concretes mechanical properties experimental study .Xian: Xi'an the university of science and technology,2006 [8] Zhangjianren,Wanghaichen,Yangweijun.
Online since: May 2013
Authors: Changon Park, Il Taek Lee, Hee Yong Kang, Dong Pyo Hong, Hyun Sik Kim
In this study, we studied the properties of friction welding required to produce the aluminum propeller shaft of lightweight rear-wheel-drive vehicle.
Finally, the core factors to get the maximum effect of friction welding investigated.
Al 7075-T6 has certain benefits and good mechanical property.
Al 7075 has high fatigue strength and mechanical property as well.
Yilbas : Investigation into the properties of friction-welded aluminum bars ( A.
Online since: February 2021
Authors: Sergey Stel'makh, Mukhuma P. Nazhuev, Mikhail Kholodnyak, Evgeniy Shcherban'
Studying the Effect of Some Factors on the Stress-Strain Behavior of the Rostov Region Limestones in the Course of their Production and Use Mikhail G.
The effect of various factors on the strain-stress behavior of local limestones has been investigated.
Their characteristics and the durability of construction materials made of this rock may depend on both technology and operational factors.
It should be especially noted that the Rostov Region limestones have high stress-strain properties.
Kozlov, The influence of rock disturbance on their rheological properties, Notes of the Mining Institute 185 (2010) 31-36
Online since: February 2021
Authors: Sergei A. Lyubomudrov, Evgeniy Larionov, Tatyana Larionova
The article discusses the properties and features of heat-resistant titanium alloys.
The microstructure of a new titanium alloy VT41, its mechanical and service properties after various processing modes are presented.
Due to its unique mechanical properties, heat-resistant titanium alloy VT41 is very difficult to machine on metal-cutting machines.
Mechanical and service properties of titanium alloys differ after different processing modes.
Due to their mechanical properties, most titanium superalloys are difficult to machine, which leads to problems when machining on metal cutting equipment.
Online since: January 2012
Authors: Yuan Ling Huang, Jie Zhang
The glass adding Lanthanum oxide will make the glass phase separation and crystallization propensity increase, is beneficial to improve the glass phase viscosity, or the glass phase transition for amorphous phase, to improve the ceramic material of high temperature mechanical properties of purpose [7].
In this paper, by adding rare earth lanthanum oxide of manganese slag ceramic preparation, at the same time, on the mechanical properties of such a test analysis, in order to get more application value.
As a result of bending strength test value has the larger discreteness, and ceramic flexural strength test have significant size effect, it will further consider the thickness of the factors in the future experiment, so as to test data is more accuracy. 4) The water absorption rate of 6 samples is less than 22%, water absorption of 6 # is a minimum 12.20%.
LaB6 and La2O3 effect on the structure and properties of ZrB2-SiC ultra-high temperature ceramics [J].
La2O3 effect on alumina transparent ceramic microstructure and optical properties [J].
Showing 6821 to 6830 of 25903 items