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Online since: May 2020
Authors: Aminatun Aminatun, Fitria Renata Bella, Prihartini Widiyanti
In previous study, the mechanical properties of biocomposite bacterial cellulose-chitosan still too rigid and did not meet the standard.
Then there is a reduction in soluble glucose due to the breaking of the molecular chain that causes biocomposite to degrade and also affect its mechanical properties [18].
[6] Tutiek Rahayu, Eli Rohaeti, Mechanical properties of bacterial cellulose based coconut water with adding chitosan.
Gibson, Effect of water absorption in the mechanical properties of hybrid interwoven cellulosic fibre reinforced epoxy composites, Composite Structures, 167 (2017) 227–237
Oromiehie, Physical mechanical barrier and thermal properties of polyol plasticized biodegradable edible film made from kefiran, Carbohydrate Polymers, 84 (2011) 477-483
Online since: October 2010
Authors: Cai Li Wang, Shui Lin Zheng, Xi Xu, Zhao Hua Wang
Application test shows that the polypropelyne(PP) products filled with inorganic modificated powder have superior physical properties or mechanical properties(tensile strength 20.45Mpa, bending strength 38.02Mpa) than that with uncoated wollastonite and pure PP and the heat distortion temperature increases by 28.6°C than pure PP.
Tensile properties test method Tensile properties were studied as per GB/ T1040-92.This test method has been used for the determination of the tensile properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined condi- tions of pretreatment, temperature, humidity and testing machine speed.
Flexural properties The flexural properties were studied as per GB/ T9341-2000.This test method covers the determination of flexural properties of unreinforced and reinforced plastics, including high-modulus composites in the form of rectangular bars molded directly.
,Ltd.The mechanical properties of PP filled by wollastonite before and after modification are shown in table 1.It can be seen from table 1 that the mechanical properties of PP filled by inorganic modificated wollastonite are evidently better than the one with wollastonite and the heat distortion temperature enhanced 28.6 than pure PP,which shows that inorganic modificated wollastonite has good effect on improving PP’mechanical properties.
Pan, Q.F.Yue, J.F.Ren:Polymer Testing.Vol.25(2006),p.384-391 [7] NIELSEN:Mechanical Properties of Polymers and Composites, 2nd, Marcel Dekker, inc, New York,1974 [8] B.
Online since: January 2021
Authors: Michiya Matsushima, Kei Endo, Tetsuya Kawazoe, Shinji Fukumoto, Kozo Fujimoto
This report clarifies the effects of stress distribution and residual stress at the time of specimen preparation as influencing factors on the inelastic strain amplitude, which is a parameter in thermal fatigue life evaluation.
Table 1 shows the material properties used in the analysis.
In addition, since copper and solder are known to have different mechanical properties depending on the temperature [10, 11], a bilinear plasticity approximation considering temperature dependence was adopted (Fig. 3).
Table 1 Material properties for the analysis.
Schmitz, Mechanical properties of Pb-free SnAg solder joints Acta Materialia 59 (2011) 2731–2741
Online since: March 2020
Authors: Ling Chen, Jing Zeng, Yue Ting Yang, Yi Liu
This paper focuses on the properties of HSC columns confined by AFRP sheets under axial compression.
A summary of the mechanical properties of the AFRP composites is presented in Table 1, where tf is thickness of AFRP (mm), Ef is elastic modulus of AFRP (MPa) and is Poisson ratio of AFRP.
Fig. 1 AFRP-confined square concrete columns Fig. 2 AFRP-confined circular concrete columns Table 1 Mechanical Properties of AFRP Type of AFRP tf (mm) Ef (MPa) νf AFS-60 0.286 118000 0.33 Non-repeatability is the system quieting different degree when the system inputs are successive multiple measured in complete measuring range at one direction and is described as fractional error in percent [12]
Table 4 Mechanical properties of circular concrete column Type of AFRP d (mm) Ec (MPa) νc C50 100 34500 0.167 According to Eq. (5), the theoretical value under strong constraint of AFRP can be attained
Bisby: Factors affecting the ultimate condition of FRP-wrapped concrete columns, Journal of Composites for Construction, vol. 17, no. 1 (2013), p. 67-78 [4] K.
Online since: November 2025
Authors: Ion Dragoş Uţu, Daniel Foltuț, Viorel Aurel Șerban, Georgiana Iulia Șoșoi, Dragoș Toader Pascal
This research examines the friction and wear characteristics, as well as the mechanical properties, of EPDM (ethylene propylene diene monomer) rubber filled with oleamide.
These results indicate that both thermal and water-glycol aging negatively impact the mechanical properties of EPDM, reducing its elasticity and tensile strength.
Tribological properties of the PA46 and Teflon added PA46 polyamides.
Physical and tribological properties of PTFE micropowder-filled EPDM rubber.
Effect of Thermal Aging on Mechanical Properties of EPDM Rubber.
Online since: June 2012
Authors: Hao Wang, Cai Wang, Zhao Xia Hou, Zhao Lu Xue, Hao Ran Lu, Chang Lei Niu, Shao Hong Wang
While in the process of synthetizing cordierite powders, the sol-gel procedures are affected by a number of factors.
When the fraction of water was less than r=4, the main factor affecting the rate of gelatinizing was the speed of TEOS hydrolysis.
When the fraction of water was higher than r=4, the main factor affecting the rate of gelatinizing became the rate of polymerization.
This reduces the hydrophilic properties of the surfactant which weakens its ability to form the W/O micro-emulsion system [9].
Dielectric properties under different frequency Fig.8.
Online since: October 2010
Authors: Wan Guang Ge, Jing Lin, Jian Shu Ye, Ying Ma
The research results of mechanical properties, hydrogen embrittlement and corrosion fatigue of new and corroded galvanized wires which were used in cable-supported bridges were summarized.
Mechanical Properties of Corroded Wires Table 1 illustrates the progression of the corrosion of cable wires through four levels, which can easily be identified visually, and are the basis for a steel wire inspection.
Shun-ichi Nakamura, Keita Suzumura and Toshimi Tarui did some research on the mechanical properties of corroded galvanized steel wires [20].
It is known that non-diffusive hydrogen does not affect hydrogen embrittlement, although a further study is required to clarify how non-diffusive hydrogen affects fatigue strength.   
It was found that the stress would not affect the amount of diffusive hydrogen.
Online since: June 2022
Authors: Patel G.C. Manjunath, Balachander Shetty, J. Sudheer Reddy, Avinash Lakshmikanthan, Vinayak Malik
The mould's design depends not only on the geometric shape of parts but also on the thermal properties of the flow material and mold material.
DOE is an efficient technique that requires lesser experimental trials and estimates individual and interaction factors [42-44].
The effect of injection molded factors on the quality of parts (i.e., surface roughness) is presented in Fig. 1.
Parappagoudar, Study of the effect of nano-silica particles on resin-bonded moulding sand properties and quality of casting, Silicon. 10(5) (2018) 1921-1936
Gudiño, Morphological and mechanical properties of bilayers wood-plastic composites and foams obtained by rotational molding, Polymers. 12(3) (2020) 503
Online since: December 2019
Authors: Svetlana V. Shatalova, Natalia V. Chernyisheva, Maria Yu. Drebezgova, Evgeniy N. Lesnichenko
CGB properties are presented in table 2.
CGB composition and properties № GB PC CS QS W/Bind.
The presence of "contact holes" and cracks has been established, which may be due to the uneven distribution of the foam maker and the occurrence of a pressure differential between adjacent pores that adversely affects the PB properties.
International Conference on Mechanical Engineering, Automation and Control Systems 2017, Material Science in Mechanical Engineering. (2018) 032015
Kozhukhova, Analysis of the factors of increasing the strength of the non-autoclave aerated concrete, Construction Materials and Products. 1 (1) (2018) 59–68.
Online since: February 2009
Authors: M.C. Onuoha, O.K. Olaogun, S.O. Igbinovia
Olaogun Department of Electrical/Electronic and Computer Engineering, University of Benin, Benin City, Nigeria a samigbinovia2006@yahoo.com Keywords: Designed parameter, Performance characteristics, Weld piece properties, Heat energy, and metal arc welding.
Adjusting the position of the electrode to maintain a constant gap sustain the arc to ensures fine weld or cut with excellent corrosion resistance and mechanical properties.
Interpreting Figures 2.0, as the operating power factor increases, the active power (P) also increases; this explains while power supply authorities restrain operating loads, especially inductive loads at lower lagging power factors and places such customers on special tariff in view of the enormous amount required in power factor correction.
In this work an innovative method for estimating the actual cooling rate in welded section based on applying a weighting factor determined from the heat-affected zone (HAZ) width, obtained from etched sections, and reflects the actual response of the plate to the heat flow condition to the Rosenthal analytical solutions for thick and thin plates was examined.
Subjecting the fabricated machine to open and short-circuit tests, continuity and on -load tests, using wire gauges 10, 12 and 14, the machine was found to be operating at 0.81 lagging power factors and at efficiency of 97%.
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