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It is proven, herein, that crazes closer to the main crack dominate the resulting interaction effect and reflect an antishielding of the damage while a reduction constitutes a material toughness.
Thus, the existence of these defects affects progressively the propagation of cracks already present in some materials.
The additional terms are homogeneous material stresses.
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A 3D numerical model was developed to analyze the deformation and stress characteristics of HDPE material circular net cage exposed to waves, using the finite element method (FEM).
But when the HDPE material is aging and the yield stress decreases, the failure may happen.
Acknowledgements This work was financially supported by the Science and Technology Planning Project of Guangdong Province (2011b031200008) and Guangdong Ocean University Science Foundation (1012141).
Journal of Oceanic Engineering, 30(1): 28-35
South China Fisheries Science. 5(4): 36-40.

Materials Science & Engineering.
Materials Science & Engineering.
Materials Science & Engineering.
Materials Science & Engineering.
Journal of Materials Processing Technology, v.86, p. 1-16, 1999

Materials and Methods Literatures related to nutrient cycling in 2000-2011 were retrieved from CNKI database, and datasets from field experiments by International Plant Nutrition Institute conducted were combined to analyze the P nutrient input and output parameters.
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An, Journal of Non-Crystalline Solids, X 1 (2019) 100005
Xie, Journal of Rare Earths Vol. 26, 5 (2008), p. 745
Lin, Journal of Rare Earths Vol. 25 (2007), p. 381
An, International Journal of Nanotechnology and Nanomedicine Vol. 4 (2) (2019), p. 1
Zhang, Final Report, Development of Advanced AlReTm Materials, Processing and Technology, International Cooperation Program, Ministry of Science and Technology, China, No. 2012DFA51260 (2015).

Le, Trimming and Sheared Edge Stretchability of Automotive 6xxx Aluminum Alloys, Journal of Materials Processing Technology 264 (2019) 64
Ma, Friction stir welding and processing, Materials Science and Engineering: R: Reports 50 (2005) 1-78
Journal of Materials Science & Technology 34 (2018) 112–118
Wu, Microstructure and mechanical properties of double-side friction stir welded 6082 Al ultra-thick plates, Journal of Materials Science & Technology 41 (2020) 105–116
Sun, Natural aging behaviour of friction stir welded 6005A-T6 aluminium alloy, Materials Science and Engineering: A 576 (2013) 29–35

Materials and Methods Materials.
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Journal of Reinforced Plastics and Composites 32.6 (2013) 393-401
Journal of Composite Materials (2021) 00219983211015421
Materials Chemistry and Physics 122.2-3 (2010) 548-555

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Microstructures of two-stage aluminized coatings on pure Ni. materials science and engineering a-structural materials properties microstructure and processing, 1999. 272(1): p. 207-214
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Fig. 3 Schematic diagram of variable wall thickness Fig. 4 Schematic diagram of initial position Establishment of the Simulation Model and Materials Parameters Fig. 5 FEM of annular EFP penetrates target Fig. 6 FME for numerical simulation To solve the problem of large deformation of lagrangian grids and the flowing material, we have used the ALE algorithm to calculate formation and penetration of annular EFP.
The shell material is made of #45 steel, and the Johnson-cook material and the gruneisen state equation are used.
Journal of Shenyang university of science and technology, 2007, 26(6):54~58
Chinese Journal of Explosive and propellants, 2009, 32(5):50~53
Chinese Journal of Explosive and propellants, 2008, 31(3):6~9

Introduction To meet rapid developments of contemporary technology, brittle materials machining technique has also been keeping pace in the world.
High efficiency mirror surface machining of brittle materials such as glass has become more important as these materials have become used more widely in optical and electronic devices [1].
Acknowledgements This work is partly supported by the National Natural Science Foundation of China (NSFC) (Grant No.50775057).
Mauro: Journal of the European Ceramic Society，Vol. 29 (2009) No.7, pp.1227-1234
Tomozawa: Journal of Non-Crystalline Solids, Vol. 354 (2008) No.52, pp.5567- 5569