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Online since: April 2013
Authors: Al Emran Ismail
The PFM has incorporated the statistical uncertainties of mechanical, geometrical and loading properties to determine the probability of failure of the components.
Then, the K-estimation method is coded into ANSYS finite element analysis by incorporating with the statistical characteristics of mechanical, geometrical and loading properties.
Due to the uncertainties of mechanical, geometrical and loading properties, a Monte Carlo Simulation (MCS) is used in the probabilistic analysis to determine the probability of failure.
Ghazali, Stress intensity factors for surface cracks in round bar under single and combined loadings, Meccanica 47 (2012) 1141-1156, 2012
AbdulRazzaq, Stress intensity factors under combined bending and torsion moments, J. of Zhejiang University-SCIENCE A 13 (2012) 1-8
Online since: January 2010
Authors: Mehdi Asadi, Heinz Palkowski
Dual phase and complex phase steels are under investigation to examine the effect of thermo-mechanical processing parameters on local ageing ability and its use for designed properties.
The ageing of steel is a process by which the mechanical properties of the material change over time.
Using bent metal sheets, it was investigated to what extent factors, such as true strain, bending radius and bending angle influence the BH effect and how to determine them most efficiently.
To evaluate the effects on mechanical properties tensile test were conducted.
The change of mechanical properties by LHT was checked by tension test using photogrammetric deformation analysis ARAMIS by GOM and finally local strengthening by LD was accompanied by FEM simulation.
Online since: June 2015
Authors: Ionel Chicinaş, Olivier Isnard, Traian Florin Marinca, Bogdan Viorel Neamţu, Horea Florin Chicinaş
Even if the stability of the benzene molecule (aromatic ring) is larger compared to that of ethanol or oleic acid (chain like), is seems that the number of carbon atoms contained by the molecule is the main factor affecting the powder contamination and thus its amorphisation.
Duwez, Structure and properties of alloys rapidly quenched from the liquid state, Trans.
Păşcuţă, Preparation and soft magnetic properties of spark plasma sintered compacts based on Fe-Si-B glassy powder.
Kavečanský, The influence of the long time milling on the structure and magnetic properties of the Fe–Cu–Nb–Si–B powder, Mater.
Inoue, Enhanced mechanical properties due to structural changes induced by devitrification in Fe–Co–B–Si–Nb bulk metallic glass, Acta Mater., 58 (2010) 6256-6266
Online since: August 2021
Authors: Renata Burkhanova, Igor Stefanenko, Natalya Evstafyeva, Talgat Akchurin
Corrosion of polymeric materials is the result of overcoming the forces of interaction between atoms or molecules, which occurs under the influence of various oxidizing agents, thermal, radiation, mechanical action and other energetic factors.
The phenomenological approach to the description of the destruction process is based on the establishment, on the basis of experimental data, of the changes’regularities in the properties of material and structures, depending on the duration of the aggressive factors action on them.
The penetration of physically active media into the body is carried out through micropores and small capillaries of materials, which affects the change in the chemical structure of polymeric materials due to irreversible processes that worsen the basic physical and mechanical properties of the composition.
The penetration of physically active media into the body is carried out through micropores and small capillaries of materials, which affects the change in the chemical structure of polymeric materials due to irreversible processes that worsen the basic physical and mechanical properties of the composition.
Zhao, Mechanical properties and microstructure analysis of fly ash geopolymeric recycled concrete, Journal of Hazardous Materials. 237 (2012) 20-29
Online since: January 2020
Authors: Aleksey Serov, Dmitri Pronichev, Oleg V. Slautin
The structure, phase and chemical composition of the interaction zone was investigated, the factors influencing the change in its hardness were determined.
To improve tribotechnical properties of the parts made of titanium alloys, they typically use the same technologies for treating rubbing surfaces as for other metals: thermochemical treatment, electroplating, sputtering, laser and electric-spark surface doping, etc [3-16].
Budinski, Tribological properties of titanium allous, Wear, 51(2) (1991) 203-217
Savostikov, Physical-mechanical and tribotechnical properties of titanium alloys with Ti–C–Mo–S gradient antifriction coatings, Russian Physics Journal, 55 (2013) 1056-1062
Shmorgun, Effect of Contact Melting Regime on Structure and Properties of Coatings of the Copper–Titanium System, Metallurgist, 60(5-6) (2016) 635-640
Online since: June 2012
Authors: Ming Tao Huang, Yang Wei Wang, Fu Chi Wang, Ju Bin Gao
The results show that the main factors are the specific permeability of SiC performs and the temperature of molten aluminum alloy.
This excellent combination of properties makes composites very attractive for industrial application.
In terms of properties there is no much difference.
Summary (1) The temperature of the melt and specific permeability of the perform are the main factors affecting the threshold pressure
John: Aluminum: Properties and Physical Metallurgy (The American Society for Metals, USA 1984)
Online since: June 2014
Authors: Hong He, Jian Guo Zhou
On-line Measurement of Rheological Properties of LDPE, HDPE and LDPE/MICA Systems in Single-Screw Extrusion Hong He1, 2 a, Jianguo Zhou1, b 1College of Mechanical and Electrical Engineering, Beijing University of Chemical and Technology, Beijing, China 2Engineering Research Center of the Ministry of Education for Polymer Processing Equipment, Beijing, China aemail: hehong@mail.buct.edu.cn, bzhoujiangua@gmail.com Keywords: on-line measurement; rheological properties; single screw extrusion; thermoplastics.
The quality of extrudate is closely related to its rheological properties during extrusion.
Therefore, on-line measurement of rheological properties of polymer is important in extrusion process.
Introduction Rheological properties of polymer are essential during polymer processing.
Many factors such as temperature and screw configuration can affect the on-line viscosity.
Online since: September 2014
Authors: Hong Yu Zhou, Ya Ran Zhang, Hai Qian Wang, Yi Bo Chen
For basic mechanical properties of concrete materials, such as compressive, tensile, flexural and shear properties, present researches on mechanical properties of static loading are quite a lot, also relatively mature.
When concrete is subjected to dynamic loads, its mechanical properties increase.
Lots of experiments about strain-rate effect on concrete mechanical properties are made by domestic and foreign scholars, and some conclusions are obtained.
Dynamic Uniaxial Compressive Properties of Concrete Concrete is a kind of quasi-brittle materials, and under dynamic loads, mechanical properties exhibited are quite different from those in quasi-static loading conditions.
Therefore, research on dynamic mechanical properties of concrete is not only confined to the uniaxial stress state.
Online since: January 2016
Authors: Idris Siti Rabiatull Aisha, Hardinna Wirda Kahar, Mahadzir Ishak, Zetty Akhtar Abd Malek
Effect of Immersion Coating Deposition Time on Solder Joint Properties A.M.
Surface finishes on copper pads have been known to be one of the influential factors in the solder joint quality.
Deposition times during immersion plating process on copper pads are important as the thickness of the coating will decide several properties of surface finish, such as wettability during soldering process.
A reliable solder connection must have solderable surface to form good solder joint since interfacial reaction at solder joint are key factors in the fabrication of electronic products [10].
Shibuya, Mechanical characterization of Sn–Ag-based lead-free solders.
Online since: July 2021
Authors: Konstantin G. Pugin
It has been experimentally proven that the use of waste foundry sand in the composition of asphalt concrete can improve its physical and mechanical properties.
Several key factors can be identified that affect the use of waste in the road construction industry.
These factors include the homogeneity of the grain and chemical composition, the volume of formation and accumulation and their availability, and environmental safety for humans and the environment.
It was found that the asphalt concrete samples with WFS have higher physical and mechanical properties in comparison with the samples made on natural and quartz sand.
The laboratory tests of asphalt concrete with WFS showed high physical and mechanical properties.
Showing 4321 to 4330 of 25890 items