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Brittle failure of rock materials test results and constitutive models.
Proc. of IUMAM Symposium on Fracture of Brittle, Disordered Materials, Edited by Baker and Karihaloo, 1993:391-405 [7] Yale, D.P.
Materials and Structures (RILEM), 1983, 16: 155~177
Journal of Engineering Mechanics, 2000,4:307-314 [13] Sitharam Thallak, Leo Rothenbury & Maurice Dusseault.
Rock mechanics as a multidisciplinary science Roegiers(ed.), 1991, Balkema Rotterdam, Proceedings of the 32nd U.S.

Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing, 400030, China 3 School of Environment Science and Engineering, Tianjin University, Tianjin, 300072,China afengguohui888@163.com, bhuangkailiang_v@163.com, cgirl_liuxin@163.com, dHj_lhx@sjzu.edu.cn Key words: phase change material; floor heating; thermal storage; solar energy Abstract.
Integrating phase change materials into floor heating system, which is a effective method of optimizing using solar energy and other non-continuous energy for heating, greatly improve the heat storage and exchange capacity.
Fig. 2 Structure for phase change material floor Fig. 1 Operation principle of hot water FHSPC Differential scanning calorimeter (DSC) was used to choose capric acid as the main energy storage material.
Journal of Shenyang jianzhu University(Natural Sciences) .Vol. 22-2 (2006) p.294-298 (in Chinese) [4] Qunli Zhang, Hongfa Di, Kunping Lin, etc.
Journal of Engineering thermophysics.Vol. 27-4 (2006) p. 641-643 (in Chinese) [5] Francis Agyenim, Neil Hewitt, Philip Eames, Mervyn Smyth.

From the results it can be concluded that by further changing the layup sequence composite materials can be made much stiffer than MAB propeller.
Journal of Reinforced Plastics and Composites, 2008.
“The Development of a Composite Propeller Blade with a CFRP Spar” Aeronautical Journal, Jan 1972, pp53-57
Journal of Fluids and Structures, 2008. 24(6): p.799-818
International Journal of Engineering Science and Technology (IJEST)

Numerical computation of complex stress intensity factors of interface cracks in bi-materials based on photoelastic theory Pengcheng Li1,a and Bangcheng Yang1,b 1Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming 650500, China alipengcheng@kmust.edu.cn, byangbc5@163.com Keywords: complex stress intensity factor; interface crack; bi-materials; K domain; photoelastic isochromatic fringe.
In 2001 and 2012，Christina Bjerken et al.[4] and Nao-Aki Noda et al.[5] have been calculated stress intensity factors for interface cracks in bi-materials by FEM.
In this research, we made photoelastic model with an interface crack in bi-materials by epoxy material and have carried out the photoelastic experiments.
Substituting ψ into the following equations and adding a non-singular items σ0, (2) We get (3) (4) (5) In which (6) (7) In the above formulas, G1 and G2 are the shear modulus of elasticity of the two materials; μ1 and μ2 are the Poisson's ratio of the two materials.
Last, we have made into the photoelastic specimen of the bi-materials with the interface crack by the slicing, grinding and other processes.

Experiment sample preparation and raw material Raw materials The raw materials: isocyanine (IPDI); prepolymer monomer trimethylol propane triacrylate (TMPTA); photoinitiator: 2-methyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-propanone (907), 1-hydroxycyclohexyl phenyl ketone (184); dye precursor 2-anilino-3-methyl-6-dibutylaminofluorane (ODB-2); dispersant (PVA224, PVA217); deionized water; Tetraethylenepentamine; developer 4-hydroxy-4'-isoproxydiphenylsulfone(D-8).
References [1] E N Brown, S R White, N R Sottos, “Microcapsule induced toughening in a self-healing polymer composite,” Journal of Materials Science, vol. 39, no. 5, pp. 1703-1710, March 2004
[2] X W Li, X L Jiang, W D Lai, et al, “Investigation of a Light-thermal Sensitive Imaging System Based on the Microcapsule Technique,” Journal of Imaging Science and Technology, Vol. 51, no. 2, pp. 122-126, February 2007
[4] X Wang, G Q Li, J Wei, W W Guan, “A novel method to control microcapsule release behavior via photo-crosslink polyurethane acrylate shells,” Journal of Applied Polymer Science, vol. 113, no. 2, pp. 1008-1016, July 2009
[6] T Xu, W Yuan, S J Wang, “Synthesis of polyurethane modified bismaleimide(UBMI) and polyurethane-imide elastomer,” Chinese Journal of Polymer Science, vol. 26, no. 1, pp. 117-119, January 2008

Experiment description Materials.
Fatty acids as phase change materials: a review.
Preparation and characterization of lauric-myristic-palmitic acid ternary eutectic mixtures/expanded graphite composite phase change material for thermal energy storage, Chemical Engineering Journal, 231(2013)214-219
Preparation and properties of lauric acid-stearic acid/expanded perlite composite as phase change materials for thermal energy storage, Materials Letters, 67(2012)352-354
Preparation, Encapsulation and Thermal Properties of Fatty Acid /Expanded Graphite Composites as Shape-stabilized Phase Change Materials, Chemical of journal of Chinese universities, 33(2012)526-530

Cementitious Macro Defect Free (MDF) materials can be obtained in complex forms with high performance making these materials suitable for applications in many sectors.
Materials.
Li, Journal Applied Polymer Science, 59, 1159- 66 (1996) [11] A.
Nicolais, Effect of temperature on thermo-mechanical properties of Macro-Defect-Free cement-polymer composite, Journal of materials science 34 5683 – 5687 (1999) [25] J.
Res Journal Materials Research, 11 (7), 1739-1747 (1996) [32] A.

Dubinin et al., Experimental Investigations of the Thermal Decomposition of Wood at the Time of the Fire in the Premises of Domestic Buildings, Materials Science Forum, 1066 (2022) 191–198
Afanasenko et al., Epoxidized Dinaphthol Application as the Basis for Binder with Advanced Carbonation Level to Reducing its Flammability, Materials Science Forum, 1006 (2020) 41–46
Kovalov et al., Treatment of Determination Method for Strength Characteristics of Reinforcing Steel by Using Thread Cutting Method after Temperature Influence, Materials Science Forum, 1006 (2020) 179–184
Korytchenko et al., Enhancing the Fire Resistance of Concrete Structures by Applying Fire-Retardant Temperature-Resistant Metal Coatings, Materials Science Forum, 1038 (2021) 500-505
Korytchenko et al., Advanced detonation gun application for aluminum oxide coating, Multidisciplinary journal «Functional Materials», 27 (1) (2020) 224-229

Pinnavaia: Nanoporous Materials II, Studies in Surface Science and Catalysis, Vol. 129, Elsevier, Amsterdam (2000) p. 121
Yazawa: Journal of Membrane Science Vol. 182 (2001) p. 139
Kukizaki: Journal of Membrane Science Vol. 360 (2010) p. 426
Haraya: Journal of Membrane Science Vol. 95 (1994) p. 221
Moriya: Journal of the Society of Materials Science, Japan Vol. 19 (1970) p. 705

Journal of Composite Materials, 2020; 54(26):4011-4024
Journal of Composite Materials, 1973; 7(4):448-464
Journal of Composite Materials, 1991; 25(3):274-301
Journal of Composite Materials, 1991; 25(1):2-43
Journal of Composite Materials, 1999; 23:2248-2280.