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Online since: January 2014
Authors: Peng Chen, Yong Ye, Cheng Hao Wang, Xue Chen Li
In the paper, based on the aqueduct design, aqueduct model making, aqueduct structure calculation and static load experiment, the whole process of design and calculation of continuous beam truss aqueduct model are performed, and the analysis of its mechanical properties are also carried on.
But arch curve bending moment is smaller, and this gives full play to the mechanical properties of the materials[4].
In addition, the paper pole is easy to appear a certain degree of distortion or damage, so this will easily change the mechanical properties of paper pole.
Because of the complexity of the tank body stress calculation, a two-dimensional plane model is simplified, and some factors such as wind load are not taken into account.
What is more, this can also affect the navigation.
Online since: September 2013
Authors: Tomasz Nowak, Łukasz Bednarz, Dariusz Bajno
All the factors which contributed to the degradation of the roof structures and created a hazard of their collapse are examined.
Moreover, the parts of the truss were biologically affected by timber pests to a depth of at least 5 cm.
As part of the analysis of roof behaviour aimed at developing a proper rehabilitation programme, the roof structures were tested in order to determine some of the physical and mechanical properties of the wood in the ceilings and to specify the standard wood strength parameters to be adopted in the final static and numerical analyses.
Conclusions The life of timber structures depends on many factors, including their deterioration level, their service conditions, the expertise of the restorer and the range and effectiveness of the restoration measures.
Determination of some physical and mechanical properties [in Polish]
Online since: December 2010
Authors: Jia Long Ren, Ren He, Qing Yu Zheng, Chun Yan Zhang
The chemical composition and properties of nickel-based superalloy Inconel 718 was investigated first.
Turning Inconel 718 was simulated by Deform-3D software to figure out main affection factors, and optimal combination of cutting speed, feed rate and cutting depth was introduced.
Impact of tool-chip friction factors on cutting characteristics 2) Impact of tool-chip friction factors on cutting force.
So that the impact of tool-chip friction factors on cutting force can not be ignored.
With tool-chip friction factors increases, cutting temperature becomes higher.
Online since: January 2012
Authors: You Li Ma
In linear fracture mechanics, stress intensity factors used to evaluate the crack deformation behavior are calculated by stress distribution around the cracks[3].
The material used here was medium carbon steel S45C (be equal to No.45 steel in China).The chemical composition and mechanical properties are shown in table 1 and table 2 individually.
Mechanical properties Figure 1.
First, mode Ⅰstress intensity factors, (KⅠ)mes measured from fatigue pre-crack are smaller than KⅠbecause the compressive residual stress exists around it.
Mode Ⅱstress intensity factor (KⅡ)mes was also affected because of the zigzag pattern of the crack surface for the fatigue pre-crack.
Online since: June 2010
Authors: Keitaro Horikawa, Hidetoshi Kobayashi, Motohiro Kanno
Hydrogen Evolution Behavior during Tensile Deformation in Austenitic Stainless Steels Exposed to High Compressed Hydrogen Atmospheres Keitaro Horikawa1, a , Hidetoshi Kobayashi1,b and Motohiro Kanno2,c 1 Department of Mechanical Science and Bioengineering, School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, 560-8531, Osaka, Japan 2 Department of Mechanical Science Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, 275-0016, Chiba, Japan a horikawa@me.es.osaka-u.ac.jp, b hkoba@me.es.osaka-u.ac.jp, ckanno.motohiro@it-chiba.ac.jp Keywords: Austenitic stainless steel, hydrogen, mass spectrometry, deformation, fracture, high-pressure, embrittlement Abstract.
However, it is reported that type 316 stainless steels hydrogen-charged both cathodically and thermally are susceptible to hydrogen embrittlement, and a number of researches have carried out on the effect of hydrogen on the mechanical properties of the stainless steels [1, 2].
Although most of these researches have revealed the factors affecting the hydrogen embrittlement from the viewpoint of microstructures, little is known the role of hydrogen behavior during deformation affecting the embrittlement in the stainless steels, in which the stability of austenitic phase is different.
In contrast, when the SUS310S specimens with and without hydrogen charging were tested by SSRT, no clear differences of tensile properties were observed.
Online since: January 2024
Authors: Oluseyi O. Ajayi, Bose Mosunmola Edun, Enesi Y. Salawu, L.A.S. Agbetoye
Where Fl = service factor for driven load Fa = service factor for atmospheric condition Fp = service factor for period of operation [24] The values are given in the table on safety factors for power chain.
A review of physical and mechanical properties of cassava related to harvesting machines. 
Study on the socioeconomic factors affecting adoption of agricultural machinery. 
Research risk factors in monitoring well drilling—A case study using machine learning methods.
Factors Affecting Ballability of Mixture Iron Ore Concentrates and Iron Oxide Bearing Wastes in Metallurgical Processing.
Online since: June 2008
Authors: János Dobránszky
The constituent phases - fine mixture of ferrite and cementite and a small amount of retained austenite - considerably affect the mechanical properties, especially the resistance to high cycle fatigue.
So that new XRD analyses were also done on the two other steel strips, of which mechanical properties differed the most according to the observations of the producer of the bandsaw blades.
Conclusions Examining the great amount of tempered eutectoid steel strips it was proved that important differences can be measured by thermoelectric power measurement between steel strips with nearly the same mechanical properties and chemical composition.
The TEP measurement sensitively shows the different conditions of the microstructural properties.
Among the microstructural properties the role of two important factors turned out: firstly - and more important - the dispersion of the distribution of cementite in ferrite-cementite mixture, secondly the amount and distribution of retained austenite.
Online since: July 2025
Authors: Wuryanti Handayani, Ariza Budi Tunjung Sari, Anak Agung Istri Ratnadewi, A. A. Ngurah Nara Kusuma, Annisa Agustin Zahro
Cookie dough is optimized with the addition of certain ingredients to improve the structure, physico-chemical properties, characteristics and mechanical stability of cookies.
Chemical Properties Analysis of Cookies.
Other factors that affect the hardness of cookies are irregular sample structure, protein denaturation and water loss [20].
Chemical Properties – Water content of cookies.
Chen et al., “Extraction Temperature is a Decisive Factor for the Properties of Pectin,” Food Hydrocoll., vol. 112, 2021, doi: 10.1016/j.foodhyd.2020.106160
Online since: October 2013
Authors: Paul Nancarrow, Quan Gan, Li Zhe Liang
Due to these unique properties, PI has been developed into membranes for the separation of gases and vapors [5].
They have received significant attention in recent years due to several unique and favourable properties, such as their negligible vapour pressures and high solubility for organic and inorganic species.
H2, CO2, CO, N2 and CH4 permeability properties of the membranes were measured at temperatures of 35 °C, 100 °C, 150 °C, 200 °C and at pressures from 2 bar to 6 bar.
Results and discussion CO2, CO, H2, N2 and CH4 permeability properties of the composite [C4mim][NTf2] and PI membranes were calculated and are shown in Figure 2.
H2 is affected less than CO, therefore the H2/CO selectivity is increased.
Online since: June 2017
Authors: Hong Zhang, Meng Ying Xia, Xiao Ben Liu, Kai Wu, Jing Tian Wu
Fatigue Crack Growth Rate of High Strength Pipe Steels Kai Wu1, a*, Hong Zhang1, b, Mengying Xia1, c, Jingtian Wu1, d, Xiaoben Liu2, e 1 College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing), No 18, Fuxue Road, Changping District, City Beijing, P.R.CHINA 2 SINOPEC Tianjin Liquefied Natural Gas Co., Ltd., Tianjin 300457, China awk0609@126.com, bhzhang@cup.edu.cn, cxiamengying322@163.com, dwujingtian074@163.com, eliuxiaoben1991@126.com Keywords: High strength pipe; Fatigue crack growth; Experimental study; Regression equation Abstract: Fatigue crack growth rate is a significant mechanical property of high strength pipe.
Some properties of fatigue crack propagation can be obtained by evaluating the mechanical performance of the material.
Fatigue crack growth rate, which is a significant mechanical property of pipeline steel, is an important experimental basis for tolerance analysis of structural damage [1].
There are many factors that affect the fatigue crack growth rate, such as: the stress intensity factor ΔK, cyclic stress ratio R, waveform and condition.
Wang, X.D Wu, Study on rotational factor of Strain Fatigue of CT specimen, Acta Metallurgica Sinica. 1992(20) 38-45.
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