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The material model is a bilinear relationship.
In the both geometric and material nonlinearity, the material is regarded as idealized stress–strain relation, the plastic property is considered.
Especially in both geometric and material nonlinearity the stiffness will change with the strain and the deformation because the material yields and the reload routines.
Structural Seismic Design Beijing:Science Press 2003.342-348 [12] Y.Y.
Journal of structure engineering. 2003.206-214 [13] Fan Feng, Shen Shizhao Vibration reduction analysis of viscous damper on single-layer reticulated vaults.

It is widely used in electronic [1], antibacterial materials [2], catalysis [3] and so on.
Materials Silver nitrate, analytical grade, were purchased from Shanghai chemical reagent co., LTD.
Materials Chemistry and Physics 129(2011)1075-1080
Journal of Colloid and Interface Science 304(2006)92-97
Materials chemistry and physics (2004)82-88

Bamboo is widely used as the materials of traditional food and bamboo artwork, and also widely used in fields of architecture, chemicals and special materials.
Materials and Methods Materials and reagents.
The Moso bamboo root was collected as materials from three-year-old Moso bamboo (Phyllostachys pubescens Mazel ex H.de Lebaie) planted in the botanical garden of forestry academy of Hunan porvince in the suburb of Changsha city, China.
Moreover, 4-hydroxy-2-methylacetophenone; phenol, 2,6-dimethoxy-4-(2-propenyl)- are important spice materials.
Zhang: Journal of Bamboo Research Vol. 25 (2006), p. 28 [6] Y.J.

Introduction A number of up-to-date in-situ diagnostic devices and methods use drilling for the description of behaviour and properties of a material.
Analogical devices are produced for the testing of inorganic materials, especially stone and mortar.
The material for the experiment was parts of beams extracted during a reconstruction of a historical truss of the St.
Holzforschung – International Journal of the Biology, Chemistry, Physics and technology of Wood, Vol. 50(4), 1996, pp. 303-311
Arboricultural Journal, Volume 20, Issue 1, 1996, pp. 13-36

., Test Research on Elastic Modulus and Poisson’s Ratios of Long Age Recycled Aggregate Concrete, Applied Mechanics and Materials, Vols. 174–177, pp. 1051–1055, 2012
International Journal of Solids and Structures, 2007, 44(5), pp. 1370–1379, ISSN 0020-7683, https://doi.org/10.1016/j.ijsolstr.2006.06.028
M., Concrete: microstructure, properties, and materials. 4th ed.
[12] Logan, A. et al., Short-Term Mechanical Properties of High-Strength Concrete, Materials Journal, 2009, Vol. 106 (5), DOI 10.14359/51663141, pp. 413–418
[19] Shao, X. et al., Calibration of stereo-digital image correlation for deformation measurement of large engineering components, Measurement Science and Technology, 2016, Vol. 27

Ziemowit Dworakowski1, a,*, Lukasz Ambrozinski1,b , Pawel Packo1,c, Krzysztof Dragan1,2,d, Tadeusz Stepinski1,e, Tadeusz Uhl1,f, 1AGH University Of Science and Technology, al.
Su, “Crack identification in aluminium plates using Lamb wave signals of a PZT sensor network,” Smart Materials and Structures, vol. 15, no. 3, p. 839, 2006
Park, “Damage index comparison for a composite stiffened panel using Lamb wave,” Advanced Materials Research, vol. 26 - 28, pp. 1265–1268, 2007
Farrar, “Time reversal active sensing for health monitoring of a composite plate,” Journal of Sound and Vibration, vol. 302, no. 1-2, pp. 50 – 66, 2007
Rose, “Active health monitoring of an aircraft wing with embedded piezoelectric sensor/actuator network: I. defect detection, localization and growth monitoring,” Smart Materials and Structures, vol. 16, no. 4, p. 1208, 2007

Salman1,c 1Department of Applied Sciences, University of Technology, Baghdad, Iraq 2Physics Department, Almustansiriyah University, Baghdad, Iraq *a100012@uotechnology.edu.iq, bmohammedodda2017@uomustansiriyah.edi.iq, c100125@uotechnology.edu.iq Keywords: crystalline CdS, thermal evaporation technique (TET), II-VI semiconductor nanoparticles, Metal chalcogenides Abstract.
The formation of CdS nanoparticles (hexagonal), receive more interesting in last years related to its optimum optical and structural properties that make CdS as ideal material for using in biosensors, photocatlysts, solar cells, and quantum dots as well as become a stable when contact with other organic materials improving a good antibacterial activity in resisting pathogens [14,15].
Experimental Part Synthesis of CdS NPs Thin Films High purity (99.99 %) of CdS powder (Merck) was used in the material preparation.
Journal of Nanoscience and Nanotechnology, 20,9 (2020) 5885-5895 [5] Z.
Govender, Synthesis and Antibacterial Activity of Silver And Gold Nanoparticles Produced using Aqueous Seed Extract of Protorhus Longifolia as a Reducing Agent, Digest Journal of Nanomaterials and Biostructures, 9,4 (2014) 1669-1679

Introduction Hydrogen diffuses very rapidly into materials with close-package hexagonal structure as titanium, zirconium and their alloys.
Conforto, PlastOx 2007 (2009) 161-178, EDP Sciences, 2009
Ishimoto, Journal of nuclear materials 322 (2003) 66-72
Khatamian, Journal of nuclear materials 405 (2010) 171-176.

Material used in Present holding rod and underbed of execution system is mainly cast iron or stainless steel.
Therefore single span material or porous material can be used in components of execution system in order to reduce its weight.
So it can save materials and reduce energy consumption. 2.2.3 Evolution route belongs to flexibility pattern Dynamism Increase: rigid body – one hinge – two (many) hinges –elasticity object – molecular structure – field.
Li, Innovative design of new style stereo garage based on TRIZ, Journal of Engineering Design. 152 (2008) 86-89
Ding, Analysis on evolution of dispensing system base on TRIZ technology, Journal of Engineering Design. 155 (2008) 387-390.

Synthesis of MDI-50 and Tung Oil-based Non-ionic Waterborne Polyurethanes Baixia Ren1, 2, Huafen Wang2, Zhiyong Ren2, a, Wentao Liu1, b, Lei Jiang1, 2 and Suqin He1 1School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China 2High & New Technology Research Center of Henan Academy of Sciences, Zhengzhou, China azyren23@163.com, bwtliu@zzu.edu.cn Keywords: MDI-50, hydroxylated tung oil, Surface tension, Emulsifying ability.
In the present investigation, we firstly synthesized a series of novel nonionic waterborne polyurethane dispersions (NPUD) using MDI-50, HTO, and PEG-800 with different proportions as main materials.
Experimental Section Materials.
Therefore, combing the feed ratio shown in Table 1, the content and variety of soft segment in four materials are the same.
[20] Chen L., The relations of the HLB with chemical structures on surface active agent, Journal of Hanzhong Teachers College. 6 (1997) 43-46