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Strength and Fatigue Properties of Used Materials.
They are usually available just for the specimen of used structure materials.
Applied Mechanics and Materials, Vol. 420 (2013), pp. 21-29
Brebbia, Fatigue Damage of Materials: Experiment and Analysis, WIT Transactions on Engineering Sciences, volume 40 (2003), pp. 528-537
Zhang, A Modified Fatigue Damage Model for High-Cycle Fatigue Life Prediction, Advances in Materials Science and Engineering, Vol. 2016 (2016), ID 2193684, 7 p

Geopolymers are synthetic materials resulting from the polymerization of organic natural materials containing silicon and aluminum.
Properties of Materials.
Davidovits, Geopolymers and geopolymeric materials, Therm.
[10] Fakhruddin, External Shear Strengthening of RC Beams with Anchored Geopolymer Fiber Mortar Panel: An Experimental Study, Materials Science Forum vol 1091 (2023) 93-100
[11] Nur Fikri Ramdhani Arifin, The Utilization of Geopolymer Mortar as Permanent Formwork in Reinforced Concrete Beam, Materials Science Forum vol 1091 (2023) 143-149

Acknowledgements This work was financially supported by the Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No. 08JK363, 09JK570) and the Culture Foundation of Xi'an University of Science and Technology (Program No. 2010033).
Journal of Geotechnical Engineering,2010,32(9):1443-1447.
Advanced Materials Research, 2011, (250-253): 2468-2472
Advanced Materials Research, 2012, (430-432): 1992-1995
Advanced Materials Research, 2012, (446-449): 1555-1558.

Mechanical properties of polybenzimidazole reinforced by carbon nanofibers Li Zhang1,a, Qing-Qing Ni2,b , Toshiaki Natsuki2,c Faculty of Textile Science & Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan 2Dept. of Functional Machinery & Mechanics, Shinshu University, -15-1, Tokida, Ueda, Nagano 386-8567, Japan a s07t106@shinshu-u.ac.jp, bniqq@shinshu-u.ac.jp, cNatsuki@shinshu-u.ac.jp Keywords: polybenzimidazole; vapor grown carbon nanofibers; mechanical properties Abstract.
Experimental Materials The matrix used in this study is Polybenzimidozole matrix resin solution (PBI MRS, PBI dissolved in DMAc solution) supplied by AZ Electronic materials (Japan) K.K, with PBI concentration of 10%.
Acknowledgments This work was partly supported by Grant-in-Aid for Global COE (center of excellent) Program by the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
Hamouda: Textile Research Journal Vol. 76 (2006), p. 27 [2] Q.F.
Bjerrum: Chemistry of Materials Vol. 19 (2007), p. 350 Fig. 4 Storage modulus data from DMA tests.

Introduction Microwave absorbing material (MAM) is a kind of functional material that can absorb electromagnetic wave effectively and convert electromagnetic energy into heat or make electromagnetic wave disappear by interference [1].
The starting materials La2O3, MnCO3 and SrCO3 were mixed, ground and calcined at 900℃, 950℃, 1000℃, 1050℃, 1100℃, 1150℃ respectively.
Vol. 312(2007), p.181 [2] Yong-bao Feng, Tai Qiu, Chun-ying Shen, and Xiao-yun Li, IEEE Transactions on magnetic, Vol. 42(2006), p.363 [3] S.Jin, T.H.Tiefel, M.McCormark, R.A.Fastnacht, R.Ramesh, and L.H.Chen, Science Vol. 264(1994), p.413 [4].
Vol. 107(2010), p.09A523-1 [5] Li G, Hu G G, Zhou H D, Fan X J, Li X G, Materials Chemistry and Physics Vol. 75(2002) p.101 [6] Li Rui, Jiao Yongfang, Wang Cuiping, Fang Qingqing, Journal of Anhui University Natural Science Edition Vol. 29(2005), p.50

The heat conduction equation is: (1) The boundary condition is: (2) All above, ρ is Material density (kg/m3);c is Material specific heat capacity (J / (°C · kg)); t is time(s); T is the temperature at the point (X,Y,Z);k is the thermal conductivity of the material (W / (m · ° C));Tf is Flame temperature (° C), it can be measured by furnace temperature curve; h is Convective heat transfer coefficient (W / (m2 · ° C)), to fiber burning fire , It’s usually set 25.To hydrocarbon burning fire, it’s usually set 50. is shape factor, generally take 1.0.is comprehensive radiation coefficient (W / (m2 · ° C)), For fire surface it’s generally take 0.5.
The coefficient of thermal conductivity and specific heat of steel or concrete, etc; with the elevated temperatures and the different material components were changing.
Researchers proposed numerous calculated methods about steel and concrete materials, thermal performance parameters, countries of fire resistant design specification is also not the same as the value of the steel and concrete thermal parameters.
Acknowledgments Thanks for the sponsoring of National Natural Science Foundation of China (Grant No. 51178226) and Natural Science Foundation of Ningbo City (Grant No. 2010A610079),The province’s most important disciplines project :The offshore impact and safety engineering of Ningbo University (Grant No. zj1017) References [1] Li Guoqiang, Han Linhai, Lou Guobiao, Jiang Shouchao.
Journal of Building Structures,hired to be published.

These temperature differences occur in all elastic materials when stressed under adiabatic conditions, see e.g. [13].
Maldague, Structural integrity assessment of materials by thermography, Proceedings, Conference on Damage in Composite Materials CDCM, 2006
Bang, Structural health monitoring for a wind turbine system: a review of damage detection methods, Journal of Measurement Science and Technology, 19, 2008 [15] A.G.
Kosgaard, Design, Fatigue Test and NDE of a Sectional Wind Turbine Rotor Blade, Journal of Thermoplastic Composite Materials, 15, 2002
Zonta, Structural health monitoring of wind towers: remote damage detection using strain sensors, Journal of Smart Materials and Structures, 20, 2011

Methodology Materials.
Khayat: ACI Materials Journal Vol. 96 (1999), p. 346
Chindaprasirt: Construction and Building Materials Vol. 23 (2009), p. 2641
Tantiwitayawanich, in: Proceedings of the 4th Thailand Materials Science and Technology Conference, Pathumthani, Thailand (2006), p. 1
[14] ASTM C 1611/C 1611M, in: Annual Book of ASTM Standards,Vol. 04.02, American Society for Testing and Materials, Philadelphia, USA (2006)

Originally designed for studying metals, it has been adapted for use with various materials including polymer composites [8].
Materials and Methods Analytical Model.
Heidarpour, “Strain rate studies of pultruded glass fibre reinforced polymer material properties: A literature review,” Construction and Building Materials, vol. 171.
Kolsky, “An Investigation of the Mechanical Properties of Materials at very High Rates of Loading,” Proceedings of the Physical Society.
Hall, “Numerical and Experimental Studies of Damage Generation in Multi-Layer Composite Materials at High Strain Rates,” Intl Journal of Impact Eng, vol 34, pp 189-204, Feb. 2007, doi: 10.1016/J.IJIMPENG.2005.08.010.

The mechanical properties of adhesive materials change over time, especially when they are subjected to long-term loading regimes.
Structural adhesives are load-bearing materials with high modulus and strength that can transmit stress without loss of structural integrity.
Creep takes place under stresses lower than the yield strength of materials.
Experimental Methods Materials.
Smedley: Journal of Mechanics of Composite Material, Vol. 42(5) (2006), p. 419