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The material of projectile is the same as of the target.
And the method of using the pressure transducers to measure heterogeneous materials such as ceramic and concrete has been developed in recent years.
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Jing in: Experiment Substantial Equation of State Guide, edited by Science publishing company (1999) [7] R.Fowles: J.

Abstract: Surgical implant coatings and grafts for tissue replacement have been made by porous surface materials to improve the implant to bone attachment.
Powder Metallurgy Science, 2 nd Ed.
Journal of the European Ceramic Society 22 (2002) p. 505-510
Thesis - Metallurgical and Materials Engineering Program, PEMM/COPPE/UFRJ, Rio de Janeiro, Brazil, February 1999
Thesis - Metallurgical and Materials Engineering Program, PEMM/COPPE/UFRJ, Rio de Janeiro, Brazil, March 2003.

The material reaches yield limit, then strengthens along the linear hardening.
Material needs to define the density, elastic modulus, Poisson's ratio, yield stress and shear modulus, these are as shown in Table 2.
The material stress-strain model is as shown in Fig.5.
Journal of university of science and technology Beijing. 1999,21(4):372-375 [2] Jinze Bai.
Theoretical foundation and Case Analysis of LS-DYNA3D[M], Peking: science press,2005:93-115 [3]Liming Li.

Introduction Polymer composites combine two materials together to provide the property which a single material does not have.
PCL is a toughener and biodegradable material.
Balart, Materials, 10, (2017), P.1339
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Mishra, J. of Inorganic and Organometallic Polymers and Materials, 28, (2018), 6, 2799-2811 [9] A.

Of the various elements of municipal solid waste management, waste collection is considered as one of the crucial elements as regards the recovery, or recycling of materials public health due to emission, and depletion of resources involved in the operation.
The other portion comprises recyclable materials such as paper, plastics, glass, metals, etc.
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Research Journal of Environmental and Earth Sciences, 5, 295-304. doi:10.19026/rjees.5.57 [24] AEPB. (2018).

The mechanical and chemical characteristics of the used materials were evaluated.
Details of the beams geometry, materials, casting and testing methodology are described.
ANCHORAGE ZONE DETAILS: MATERIALS FOR ANCHORAGE PLATE WERE NODULAR CAST IRON, WEDGES: 20CRMNTI STEEL.
Mola, Flexural behaviour of reinforced, pre-stressed and composite self-consolidating concrete beams, journal of the Construction and Building Materials 36 ,826-837, (2012)
Sun, Effect of temperature on mechanical properties of pre-stressing bars, Construction and Building Materials 61, 24-32 (2014)

Method based on shear medium stresses comparison on the cross section, assessed through strength of materials, respectively through Timoshenko beam theory (FSDT); a3.
The materials characteristics used are presented in Table 1.
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Acknowledgements This work is supported by the National Natural Science Foundation of China (No: 51265038) and the Aeronautical Science Foundation of China (No: 2011ZA56002).
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Calculation of Flexural Capacity of Steel Reinforced Concrete Beams Strengthened with Near-Surface Mounted CFRP Rods Wei Hua Chen 1，a , Mei Qin Wu 2，b 1 Jiangxi science and technology University civil engineering,Jiangxi Nanchang 30013 , china 2 Vocation and Technical College , East China Jiaotong University, Nanchang 330013, china achenweihua197331@163.com, bwmqjxnc @163.com Keywords:Near-surface mounted CFRP rods, steel reinforced concrete beams, flexural capacity, strengthening Abstract.
Introduction Steel reinforced concrete structure is a new structure,which is better than steel structure and reinforced concrete structure .Due to the large stiffness, high carrying capacity, good seismic performance, etc. it is widely used in engineering [1]~[3] .And CFRP with a corrosion-resistant, high strength, light weight, good durability are being increasingly applied to civil engineering structures.Steel reinforced concrete structure strengthened with NSM CFRP rods can further make full use of the material properties, reduce the section size, increase the usable floor area of the structure , are able to meet the needs of modern structure which is large-span, heavy-duty and high-rise.At present, the application and research about FRP focused on reinforced concrete structure strengthened with NSM CFRP rods in civil engineering, to be less for steel reinforced steel concrete structure strengthened with NSM CFRP rods.Therefore, according to several kind of destruction forms of
Acknowledgements This work was financially supported by the Guangxi University of Technology Natural Science (1074018) and the Education Department of Guangxi Province Natural Science Foundation (201010LX205).
Journal of Xi'anUniversity of Architecture & Technology,2008,40 (4):450 -456 [2] SHAO Yongjian , CHEN Zongping, XUE Jianyang , ZHAO Hongtie , Journal of Building Structures, 2007,28 (6):153 -159 [3] ACI Committee 440.Guide for the design and construction of externally bonde: FRP systems for strengthening concrete structures.Detroit: American Concrete Institue, 2000 [4] Omar C, Mohsen S.
ACI Structural Journal,2000,97(4):659-668

In Fig.2, the significance of the symbols is as listed below:, are the static equilibrium position when the certain preload is applied on the connected bolts; are the respectively vertical vibration displacements of two connected bolts and downward direction is defined positive；stands for the mass of equipment; stands for the exciting force; When the tensile strain of the bolts exceeds prestrain（prestress can generally reach 50% ~ 70% of material yield limit），the system stiffness will become the stiffness of the connected bolts.
Acknowledgments  This work was supported by Youth Science and Technology Foundation of Heilongjiang Province, China (Grant No.QC2011C013) and Harbin Science and Technology Innovation Talents Project (2011RFQXG021) and China Postdoctoral Science Foundation(20100471026).
,Mahinfalah,M.; Deshpande,S: Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics Vol. 221(2007), p. 441-449
Huidong Xu, Jianhua Xie: Journal of Vibration and Shock Vol. 27(2008), p. 20-24.
Wei Wang, Qichang Zhang, Ruilan Tian: Journal of Vibration and Shock Vol. 27(2008), p. 130-133.