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Using constitutive equations of piezoelectric materials and an equation of the plate’s motion a matrix of characteristics of the system was obtained.
Research in this area concern the reliability of machines, increasing the speed and range of displacement and applications of new materials.
Piezoelectric materials can be described by a pair of constitutive equations that describe relations between electrical and mechanical properties.
Especially nowadays, when a significant increase of applications of smart materials is observed in modern technical devices.
Dzitkowski, Modelling and Synthesis of Discrete–Continuous Subsystems of Machines with Damping, Journal of Materials Processing Technology, Vol. 164-165 (2005). pp. 1317-1326

Materials Review, 2009, 23(S1), p 399-403
Materials Science and Engineering: C, 2015, 50, p 286-293
Materials Science and Engineering: C, 2012, 32(3), p 613-618
Materials Today, 2010, 13(4), p 12
Materials and Design, 2012, 36, p 829-839

The intelligent materials is a new formed branch which follows by the stone material, steel materials, synthetic polymer materials, artificial designed materials, from the development of the material, and it enters the 5th generation materials period.
From the function materials to intelligent materials, it is a leap of material field.
Because the research results of intelligent materials will spread to the information, electronic science and technology, life sciences, universe, marine science technology and the soft science technology, and they can largely increase people's material life which increasingly attract the domestic and foreign various aspects of attention[3].
The research on intelligence material is also serious in China, and the national natural science foundation listed the intelligent materials in the national high technology development plan outline in 1991, the issues and application of intelligent materials is directly as the national high technology research and development project topic(863 program) [4].
Journal of Shanghai economic research(in China).2009(12), p.19 [5] Yu Jie.

Carman studied nonlinear constitutive relations for magnetostrictive materials [3].
Atherton, Theory of ferromagnetic hysteresis, Journal of Magnetism and Magnetic Materials 61 (1986) 48-60
Mitrovic, Nonlinear constitutive relations for magnetostrictive materials with applications to 1-D problems, Journal of Intelligent Materials System and Structure 6 (1995) 673-684
Zheng, Numerical simulation of nonlinear dynamic responses of beams laminated with giant magnetostrictive actuators, Computers Materials and Continua 6 (2007) 201-211
Tomlinson, An initial experiment into the change in magnetic induction of a Terfenol-D rod due to external stress, Smart Structures and Materials 12 (2003) 763-768

The major use of this material model is for honeycomb and foam materials with real anisotropic behavior.
The major use of it is for aluminum honeycomb crushable foam materials with anisotropic behavior.
,Simulation of Energy Absorbing Materials in Blast Loaded Structures, 8th International Ls-dyna Users Conference, Dearborn, Michigan ,2004,8-67-80
[21] SU Hua-bing .HUANG Xiao-qing.TANG Li-qun.LIU Ze-jia.ZHANG Hong, Finite Element Simulation and Analysis of Small Compression of Foam Aluminum Based on the Statistical Hole-diameter,Science Technology and Engineering, Vol.9, No.23, 2009, pp. 6991-6995
Awoyemi, Meso-scale Modelling of Shock Wave Propagation in a Cellluar Glass Particle Reinforced Thermoplastic Composite, 18th International Conference on Composite Materials, Jeju, Korea,2011

[10] Hou G H, Luo J H and Chen J W: Journal of Materials Science and Engineering.
[16] Yuan S, Liu Z and Ma S.: Materials Review.
[22] S Chah, J H Fendler and J Yi: Journal of Colloid and Interface Science.
[48] Zhao Q P, Yang C, Li X R, Song G J and Cong L L: Journal of Bohai University (Natural Science Edition).
[52] Zhu C L, Song X Y and et al.: Journal of Materials Chemistry.

In general, the materials are considered heterogenic.
Journal of Materials Sciences”.
International Journal of Engineering Sciences. 21, 1009-1018, (1983)
Internatioant journal of Applied Mechanics and Materials.
Irwin, Applied Materials and Research, 3, 65, (1964)

The cases of beam sectional material behavior under hardening and softening are investigated.
Acknowledgements The study was supported by grants from the National Natural Science Foundation of China (No. 90815014, 51008101) and China Postdoctoral Science Foundation (No. 20100471019).
Flórez-López: International Journal of Solids and Structures, Vol. 40(2003), p. 5109 [3] A.
Filippou: Journal of Structural Engineering, Vol. 123(1997), p. 958 [4] X.C.
Fenves: Journal of Structural Engineering, Vol. 132(2006), p. 244 [7] R.H.J.

This research leverages computer-aided design, artificial intelligence and materials science advancements to develop an innovative software tool that integrates expert knowledge, and best practices, for inland vessel welding.
§ Electrode Type and Size: Different electrodes are suited for different materials and welding positions.
Journal of Marine Science and Engineering, 8(6), 454 (2020) [5] Liao, P, Guixiong, L.
Underwater laser welding/cladding for high-performance repair of marine metal materials: A review.
Chinese Journal of Mechanical Engineering, 35(5), 1-19, (2022) [10] Yongtai K., Jaweoong K., Sungwook K., A Study on Welding Deformation Prediction for Ship Blocks Using the Equivalent Strain Method Based on Inherent Strain, Journal of Applied Sciences, 9(22), (2019) [11] Navid A., Mehdi I., Armin R.D., A study on the effect of welding sequence on welding distortion in ship deck structure, Engineering & Technology Journal, 15(2):1-13, (2019)

A Review of Pgla Model of Medical Materials in Clinical Catgut Embedding Application 1He Yanni 1Electronic Science and Technology University Hospital, Chengdu, 610054 Keywords: Acupoint catgut embedding PGLA Review Abstract.
The paper introduces the application of new medical materials of PGLA and its advantages in different fields of acupoint catgut embedding therapy in clinical, pointed out that with the development of biological materials and minimally invasive medicine, the usage of PGLA in clinical popularity rate will more and more high.
In recent years, with the development of biomaterial and minimally invasive medicine, PGLA as a new type of acupoint catgut embedding materials, in the clinical application of the increasingly high penetration rate.
We will review the application of PGLA as a new type of materials in clinical catgut implantation at acupoint catgut embedding in the following: Jin Lei [2] application of PGLA embedding materials of acupoint catgut embedding therapy for treatment of 100 cases of periarthritis of shoulder, and acupuncture treatment of patients and compared with 100 cases, PGLA group 67 cases were cured, 28 cases markedly effective, effective 5 cases, invalid 0 cases, markedly effective rate was 95%.
Journal of Chinese medicine, 2012165 (27): 252-253.