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Mechanical hardness
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This paper investigates fracture mechanics in particle-reinforced composites by using the extended finite element method enhanced by the consecutive-interpolation quadrilateral element. These composite materials have discontinuous boundaries such as cracks, voids and hard inclusions.
18p
viamancio
04-06-2024
0
0
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Part 2 of ebook "Introduction to contact mechanics (Second edition)" provides readers with contents including: Chapter 6 - Elastic contact; Chapter 7 - Hertzian fracture; Chapter 8 - Elastic-plastic indentation stress fields; Chapter 9 - Hardness; Chapter 10 - Elastic and elastic-plastic contact; Chapter 11 - Depth-sensing indentation testing; Chapter 12 - Indentation test methods;...
122p
giangdongdinh
28-05-2024
2
2
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natural fiber for the construction of hybrid bio-composites. In the current research project, a thorough analysis of the use of soy-PF resin for the creation of composites reinforced with jute was conducted. A novel and practical cutlery material was created after the mechanical properties were evaluated and optimized. In order to study the value addition of these newly proposed biocomposite materials as an ecological alternative in terms of natural resources versus synthetic resources, variables such as hardness, cytotoxicity, and degrading qualities of composites were also explored.
9p
dianmotminh02
03-05-2024
3
2
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Part 1 book "Advanced control of electrical drives and power electronic converters" includes content: Sensor less control of polyphase induction machines, adaptive position tracking with hard constraints—barrier lyapunov functions approach, predictive position control of a two mass system with an induction motor in a wide range of speed changes, selected methods for a robust control of direct drive with a multi mass mechanical load,... and other contents.
156p
dianmotminh00
22-04-2024
6
4
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Ebook "Viscoelasticity of polymers: Theory and numerical algorithms" offers a comprehensive introduction to polymer rheology with a focus on the viscoelastic characterization of polymeric materials. It contains various numerical algorithms for the processing of viscoelastic data, from basic principles to advanced examples which are hard to find in the existing literature.
615p
tracanhphuonghoa1007
22-04-2024
3
2
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There are many evidences showing the fact that some hard conditions from environment, namely abiotic stress, could make several significantly negative impacts on crop production. However, some plant species can overcome these bad situations by complicated mechanisms. This study has shown the result of the construction the recombinant vector carrying CodA gene which could encode an enzyme, named choline oxidase, and is controlled by Rd29A promoter.
8p
vilarry
01-04-2024
5
1
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The alkyde paint has high gloss, hardness, and flexibility, good color retention of coating film. It is good for adhesion with wood, metal and others. However, there have been very few researches on alkyde paints in Vietnam recently. This paper is aimed at studying the influence of rate of Beckosol 6501-80 binder and solids powder as titanium oxide R, Lithopone, CaCO3 to quality of surface film of Alkyde paint.
11p
vilarry
01-04-2024
1
1
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Ebook "Polyurethane elastomers: From morphology to mechanical aspects" is designed as a review of the state of the art but also brings new contributions in highly specialized subjects, in a still rapidly moving field: the fundamentals of polyurethane elastomers: their chemistry and properties and materials choice for formulation development.
276p
manmanthanhla0201
26-02-2024
5
1
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This study, we present the results of investigating the influence of processing conditions for instance temperature, time, and mixing speed rotor on the mechanical and physical properties of composite materials based on thermoplastic PP and sand powder as well as their structural morphology.
5p
vimarillynhewson
02-01-2024
5
3
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"Standard Test Methods and Definitions for Mechanical Testing of Steel Products" cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results.
49p
hth_hn_vn
10-12-2023
7
4
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This specification covers hot-rolled and cold-rolled alloy and structural alloy-steel sheet and strip. Alloy steel is furnished to chemical composition requirements and is intended primarily for general or miscellaneous use where bending and moderate forming is a requirement. Structural alloy steel is furnished to chemical composition requirements and to specific mechanical property requirements which may include tension tests, hardness tests, or other commonly accepted mechanical tests.
4p
hth_hn_vn
10-12-2023
7
4
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This specification covers two classes of uncoated, highstrength, hard-drawn steel wire for use in the manufacture of prestressed concrete pipe. In application, the wire is helically wrapped on the pipe maintaining tension by mechanical means not including drawing dies.
5p
hth_hn_vn
10-12-2023
7
5
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This specification covers round, uncoated, high tensile strength, cold-drawn steel spring wire, having properties and quality suitable for the manufacture of mechanical springs and wire forms subject to high static stresses or infrequent dynamic load, or both.
4p
hth_hn_vn
10-12-2023
8
5
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This specification covers two finishes of round, metallic coated, hard-drawn, carbon steel spring wire having properties and quality for the manufacture of mechanical springs and wire forms that are not subject to high stress or require high fatigue properties.
5p
hth_hn_vn
10-12-2023
5
5
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This specification covers uncoated, high-strength, hard-drawn steel wire for use in the construction of prestressed concrete tanks and similar structures. In application, the wire is continuously wrapped on the structure maintaining tension by a device using a wire drawing die, or mechanical tensioning system without re-drawing.
4p
hth_hn_vn
10-12-2023
6
4
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The purpose of this paper is to investigate the influence of the scanning method on the distribution of stress, formation of cracks, microstructure, and microhardness of thin-walled components fabricated from Inconel 625 material using DLMD technology.
10p
vijeff
30-11-2023
3
2
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In this study, the experiments were conducted in various heating temperatures, holding times and cooling mediums for specimens made of S45C steel. Then, the relationship between the microstructure and the hardness of the steel was examined.
10p
viengels
25-08-2023
3
2
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Copper alloys, including bronzes, are currently employed in a wide range of engineering applications because of their high ductility, high corrosion resistance, non-magnetic properties, excellent machinability, and high hardness. The results of this study indicate that copper alloys with excellent mechanical properties can be produced.
12p
viberbers
09-08-2023
6
3
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The particle size, morphology and magnetic properties of CFO depend on the synthesized method. In this paper, we report the synthesis of CFO NPs by co-precipitation method and hydrothermal method at different concentration of sodium hydroxide and treatment temperatures to control size particles and magnetic properties by simple way.
6p
vidoctorstrange
06-05-2023
4
2
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Mn-Ga-based alloy system has exhibited hard magnetic properties, although this alloy system contains no rare earth elements. However, magnetic parameters of Mn-Ga alloys have not yet been comparable to those of rare earth magnets such as Nd-Fe-B, Sm-Co, etc. Therefore, enhancement of the magnetic properties of the Mn-Ga-based alloys has interestingly been researched by scientists in the world.
10p
vidudley
20-02-2023
6
2
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