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Experience that Finnish engineers have could help Russian science community to understand more exactly behavior of such structures and appropriate European norms [26].
Real bearing failure of screw connection takes place due to crush of element material.
Hancock, Light gauge construction, Progress in Structural Engineering and Materials, 1997, pp.25-26
Design of steel frames with slender joint-panels, Journal of Constructional Steel Research 35(2) (1995) 165-187
Kesti, Local and distortional buckling of perforated steel wall studs, Dissertation for the degree of Doctor of Science in Technology, Espoo, 2000, 101p. + app.19p

At 22.5°, carbon-bamboo fiber showed the highest deformation among all materials, while both hemp and carbon fiber maintained comparatively lower values.
Mechanics of Composite Materials 2024;60:211–26. https://doi.org/10.1007/s11029-024-10185-3
Mechanics of Advanced Materials and Structures 2025. https://doi.org/10.1080/15376494.2025.2466220
Journal of Natural Fibers 2023;20. https://doi.org/10.1080/15440478.2022.2157921
Acta Phys Pol A, vol. 132, Polish Academy of Sciences; 2017, p. 879–82. https://doi.org/10.12693/APhysPolA.132.879

The experiment process is introduced in this paper, and material remove mode is also discussed.
Komanduri: Key Engineering Materials, Vol.202-203 (2001), pp.1-14
Kirtane and et al: International Journal of Machine Tools & Manufacture, Vol.46 (2006), pp.151-169
Lu and et al: Journal of Materials Processing Technology, Vol.129 (2002), pp.171-175
Yao: Key Engineering Material, Vol.304-305 (2006), pp.71-75.

Method and Material 2.1.
Ahmed, Electrical, thermoelectrical and magnetic properties of approximately 20-nm Ni-Co-O nanoparticles and investigation of their conduction phenomena, Materials Chemistry and Physics, 192 (2017) 41-47
Hussain, Zinc oxide nanoparticles: a review of their biological synthesis, antimicrobial activity, uptake, translocation and biotransformation in plants, Journal of materials science, 53 (2018) 185-201
Varghese, Synthesis of biogenic ZnO nanoparticles and its impact on seed germination and root growth of Oryza sativa L. and Vigna unguiculata L, Materials Today: Proceedings, (2020)
Girigoswami, Studies on polymer-coated zinc oxide nanoparticles: UV-blocking efficacy and in vivo toxicity, Materials Science and Engineering: C, 56 (2015) 501-510

The composite materials can be defined as the materials coming from mixing two or more substances with different properties to produce new ideal properties that are different from the properties of the materials included in the composition process, even if it is a single substance [5].
Hussain, “Mechanical and physical properties of epoxy and polyester compositions Unsaturated is fortified with glass fibers and Alumina nanopowder”, Journal of Education and Science, Vol. 28,No. 1 , (2019)
Series: Materials Science and Engineering 433 (2018) 012071 doi:10.1088/1757-899X/433/1/012071
[9] A.M.Ahmed,A.N.Mahmood,R.M.Yousu,“Physical Thermal Effect Test for Treatment of Polystyrene Plastic Waste”,Rafidain Journal of Science,Vol.29,No.4,(2020),pp.32-43
Chawla, “Composite Materials” springer-verlag , NewYork , Inc, (1987)

The developed fuzzy models have been applied to the numerical data obtained by the finite element analysis Process Piping Materials The language of materials can be complicated.
Nevertheless, efficient use of B31.3 requires some basic comprehension of Code layout and materials technology, especially material classification systems and material specifications.
Generic Designations Classification of materials by generic designation involves the grouping of materials into broad categories according to certain attributes such as general composition, mechanical properties, product form or end use.
With piping materials, generic grouping based on alloy content is most popular.
Christo Michael T, Veerappan A.R. and Shanmugam S, A Study on Effect of Cross Section Approximation on Behaviour of Pipe Bends with Ovality and Thinning, International Journal of Advanced Engineering Sciences and Technologies. 2 (2011) 133-139

Loramendi 4, 20500 Mondragón Spain a fmartinez@ikerlan.es , b marregui@ikerlan.es , cgobieta@ikerlan.es, d jaurrekoetxea@eps.mondragon.edu Keywords: smart materials, electroactive pressure sensors, impact monitoring, hardware software interface, smart sensors.
Nowadays there is a very large number of pressure and force sensors, with different working ranges, interfaces and operating conditions, as well as different shapes, sizes and they can be made of many different materials [5].
Yang: Characterization of the residual mechanical properties of woven fabric reinforced composites after low-velocity impact (International Journal of Mechanical Sciences 47 (2005) 647)
Worden: An automatic impact monitor for a composite panel employing smart sensor technology, Smart Materials and Structures 14 (2005) 265
Kim: Impact damage detection in composite laminates using PVDF and PZT sensor signals, Journal of Intelligent Material Systems and Structures 16 (2005) 1007

Finite Element Analysis of Contact Stress between Rolling Mill Pressure Screw-Pairs Zhengyi Wang 1, a , Lianyun Jiang 1, b and Chunjiang Zhao 1, c 1 College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi, 030024, China a wang995845@sohu.com, b123jianglianyun@163.com, cZhaoChj75@163.com Keywords: Pressure screw, Stress concentration, Structural parameter, Material parameter, Contact stress Abstract.
The material of the pressure screw is alloy steel with high degree of hardness, and its elastic modulus is 206Gpa, and the Poisson's ratio is 0.3.
The material of the pressure mutter is wear-resisting and soft copper, and its elastic modulus is 103Gpa, and the Poisson's ratio is 0.3.
References [1] X.M.Chen, G.X.Shen and Q.X.Huang: Chinese Journal of Mechanical Engineering, Vol.43 (2007), No.4, p.168 (In Chinese)
[3] Y.P.Liang, Y.J.Zhou: Gansu Science and Technology, Vol.24 (2008), No.9, p.59 (In Chinese)

China 2College of Materials Science and Engineering, Tongji University, Shanghai 100092, P.R.
Nanoscaled materials have more important applications in many fields than bulk materials because of the nanomaterials，unique properties.
Hong, et al: Materials Letters Vol. 59 (2005), p. 319 [12] X.H.
Jia , et al: Materials Letters Vol. 64 (2010), p. 493 [16] H.M.
Das, et al: Materials Letters Vol. 60(2006), p. 2582 [18] J.

Davidovits, "Geopolymers: Inorganic polymeric new materials," Journal of Thermal Analysis, vol. 37, pp. 1633-1656, 1991
Tarallo, "Novel hybrid organic-geopolymer materials," Applied Clay Science, vol. 73, pp. 42-60, 2013
Yeh, "Sintering effects on the development of mechanical properties of fired clay ceramics," Materials Science and Engineering A, vol. 485, pp. 5-13, 2008
Sagoe-Crentsil, "Factors affecting the performance of metakaolin geopolymers exposed to elevated temperatures," Journal of Materials Science, vol. 43, pp. 824-831, 2008
Mele, "Reaction mechanism, kinetics and high temperature transformations of geopolymers," Journal of Materials Science, vol. 42, pp. 2982-2996, 2007