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The property parameters of the two materials are in table 1.
Table 1 Property parameters of materials of the cladding part [14-16] Materials Elastic modulus[GPa] Poisson ratio Shear modulus[GPa]     Eq.1 Eq.10 5Cr2Ni08C 237 0.25 94.8 0.0447 -0.0037 0.0012 0.4932 Q235 212 0.288 82.3 The left and right sides of the part are fixed.
Fang: Journal of Tongji University (Natural Science) Vol. 33(3) (2005), p. 99 (Chinese) [7] S.H.Chen, T.C.Wang and Sharon Kao-Walter: International Journal of Solids and Structures Vol. 40 (2003), p. 2731 [8] Christina Bjerken, Christer Persson: Engineering Fracture Mechanics Vol. 68 (2001), p. 235 [9] Nao Aki Noda, Ruri Ohzono and M.
Dissertation Shandong University, 2003) (Chinese) [15] Edit Committee of Handbook of Property Data of Materials for Mechanical Engineering: Handbook of Property Data of Materials for Mechanical Engineering (Mechanical Industry Publishing House, China 1995) (Chinese) [16] S.
Xiao: Tool Materials and their reasonable choices.

Fichtner et al. [5, 16] determined Ft with a materials testing instrument (Holland C50) to fracture the tablet along its diameter.
The porosity of powder material can be dictated by the particle packing within the compact before tabletting [2].The properties of tablets are influenced by the porosity of granules.
SEM methods are also applied to investigate the relationship between materials and surface roughness of tablets and contact layers of multilayer tablets.
Podczeck, Methods for the practical determination of the mechanical strength of tablets — From empiricism to science, International Journal of Pharmaceutics. 436 (2012) 214–232
Desai, Effect of force feeder on tablet strength during compression, International Journal of Pharmaceutics. 401 (2010) 7–15

Mazda, Applied Materials Today 2017; 9: 82-95
McEntire 2016, Journal of the mechanical behavior of biomedical materials, 54, 328-345.[5] B.J.
Pezzotti 2016, Journal of the mechanical behavior of the biomedical materials, 54, 346-359
Bal, Journal of the mechanical behavior of the biomedical materials 2018, 82, 168-182; [7] G.
Sriano, Materials Science and Engineering C, 2016, 61, 965-978; [12] E.

Niinomi, Materials Science Engineering A243 (1998) 231-236 [4] F.
Computational Materials Science 175 (2020): 109584
Ackland, The Journal of Chemical Physics, 145 (15) (2016) 154102
Stukowski, Modelling and simulation in materials science and engineering, 18 (2009) 1 015012 [25] Jun Hui et al.  
Materials & design 213 (2022): 110331

Fig.7 shows that neglecting the damping, the conclusions of other kinds of materials used building commonly are same to steels,the dynamic stability critical length decreases as excitation frequency increases.
l For other kinds of materials used building commonly, the conclusions are same to steels,the dynamic stability critical length decrease as excitation frequency increases.
Acknowledgements This work was financially supported by the Major project of the Education Department of Anhui Province Natural Science Foundation(ZD2007007-1),The national science and technology support plan (2012BAJ08B02).
Su, Stability of Elastic system [M] Beijing, Science Press,1994,in Chinese
[9] X.D.Yang,Y.X.Tang,L.Q.Chen and C.W.Lim,in:European Journal of Mechanics - A/Solids, Volume 29, Issue 1, January-February 2010, p.81-90

Experimental Materials.
Acknowledgements This research program was supported financially by the National Natural Science foundation of China (No. 20876091), Shaanxi Province Natural Science Foundation (No.SJ08B06) and Graduated Student’s Innovation Fund of Shaanxi University of Science & Technology.
Lars: Tappi Journal Vol.8 (2009), P.33-38
[8] Liming Zhang: Journal of Applied Polymer Science.
[9] Yanfen Ma, Shenghua Lv: Advanced Materials Research.Vol.129-131(2010), P.872-876.

But double-model method needs to produce two models with different materials and same size, and experiment under the same conditions, or the accuracy of the experiment will be affected.
Acknowledgments This work was supported in part by NSFC (11172116, 61007061) and Yunnan Natural Science Fund (2010CD034).
Lien, Journal of Mechanics. 25. 1 (2009)
Thesis for Master of Science of Tianjin University (2009)
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Finite Element Analysis on Contact of Wheel and High Manganese Steel Crossing Junhua Xiao1,2,a, Fucheng Zhang1,b and Lihe Qian1,c 1State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China 2Department of Engineering Mechanics, Yanshan University, Qinhuangdao 066004, China axiaojunhua@yahoo.cn, bzfc@ysu.edu.cn, cdlhqian@yahoo.com Keywords: High manganese steel crossing; Railway Wheel; Contact; Stress; Plastic Strain; FEA.
The material properties of each component in the model are listed in Table 1.
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Deng: China Railway Science Vol. 30 (2009), p.28 [8] A.
Dillard: International Journal of Adhesion and Adhesives Vol. 28 (2008), p.142 [9] Z.

Introduction Fluorescence dyes are of great interest in various applications such as emitters for elec- troluminescence devices, copy-preventing inks, solar energy collecting materials, fluorescence film for agricultural purposes, fluorescence materials and biological science [1].
ACKNOWLEDGEMENT The authors would like to thank for the technical support from Institute for Research in Molecular Medicine and School of Materials and Mineral Resources Engineering, USM.
Vinet, Journal of Biomedical Optics 14 (2009) 054005
Ma, International Journal of Nanomedicine 6 (2011) 815-23
Beazley, Journal of Neuroscience Methods 72 (1997) 49-55

Introduction Within last 20 years the great scientific attention is paid to nanostructures and nanosystem based on nanoparticles of semiconductor materials (1eVKulchin: Journal of Nanophotonics 5 (2011), 053528
Shibuya: Physical Properties and Data of Optical Materials (CRC Press Taylor and Francis Group, New York 2007)
Park: Journal of Applied Physics 107 (2010), 084306
Sheik-Bahae, in: Characterization Techniques and Tabulation for Organic Nonlinear Materials, edited by M.