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Acknowledgement This research was carried out in the framework of the Center of Applied Materials Science and Nanotechnologies at the University of Miskolc.
Mora, The effects of residual macrostresses and microstresses on fatigue crack initiation, Materials Science and Engineering A 284 (2000) 268–279 [3] M.
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Mertinger, M.Benke, Innovative Residual Stress Measurements by X-Ray, Diffraction, Materials Science Forum Vol. 812 (2015) pp 303-308

The facing and core materials are assumed to display linear elastic behavior.
Three core materials were investigated.
These critical stresses are lower than the critical failure stress of the materials in compression.
Wang: Mechanics of Materials Vol. 35 (2003), 511-522
Mautner: Journal of Aerospace Sciences Vol. 12 (1945), pp. 285-297

Lignin was isolated from black liquor of pulp and paper with palm empty bunch materials.
Lignin can be isolated from black liquor of pulp and paper with palm empty bunch materials [2].
The other thing that also support the use of palm empty bunch is the prevailing program of ecolabelling in some of the develop country for the industries that use the materials from forest.
As the result, acacia that is used to be the materials of paper and pulp is started to be replaced by other biomass that contains cellulose, one of it is palm empty bunch.
[7] Ni, Y and Hu Q., Alcell© Lignin Solubility in Ethanol - Water Mixtures, Journal of Applied Polymer Science, 57 (1995), p. 1441 - 1446

Experimental Methods Materials ABS material density was 1.03 g/cm3 and melting temperature 266 ºC.
Bohn, FDM Systems and local adaptive slicing, J.of Materials and Design, 20, 1999, 77-82
Song, Development of new metal/polymer materials for Rapid Tooling using Fused Deposition Modeling, J.of Materials and Design, 25, 2004, 587-594
Ibrahim, Mechanical Properties of Highly Filled Iron-ABS Composites in Injection Molding for FDM wire Filament, Materials Science Forum Vols. 773-774 (2014) pp 456-461
Science 1950; 5: 514

Thus, it can achieve high-performance machining on brittle materials and materials difficult to machine; (4).Low abrasive force and high machining precision.
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Key Engineering Materials, Vols.259-260 (2004), p.302-306 [4] Huang H, Liu T C.
International Journal of Machine Tools & Manufacture, Vol.43 (2003), p. 811-823 [5] C.
Xiu: Key Engineering Materials Vols.375-376(2008), p. 449-453

This point shows surface residual compressive stress of metal materials gradually increases with the increment of laser energy until the laser energy increases to a threshold value.
Whilst, surface residual compressive stress of metal materials with laser shock processing can be obtained as well by operating mathematics models so as to realize real time monitoring.
International Journal of Rock Mechanics and Mining Sciences Vol. 36(1999) p.849-55
Journal of Applied Science Vol. 36(2001) p.1801-1807
Journal of Materials Science Vol. 36(2001) p.1801 – 1807

In order to achieve this, the concept of capillary cohesion from science of granular physics has been considered as the first step for investigation.
In this method the macroscopic behavior of material is related to interactions between individual grains as well as between grains and surrounding material and boundary elements [3].
The effect of liquid bonds on interaction between particles in unsaturated granular material (pendular state) is explained.
Adams: Colloid and Interface Science Vol 161 (1993), p.138 [7] F.
Saix: International Journal for Numerical and Analytical Methods in Geomechanics, Vol 30 (2006), p. 213

Experimental Methods and Materials Materials preparation.
Toughness test on materials.
Journal of material heat treatment, 2009, 30 (5): 172-176
Materials Science & Engineering A, 2003, 355(1-2):137-143
Corrosion Science, 2019:108188

Some researchers prove that this model is applicable only for some materials and loading cases.
Materials and their test programs For the purpose of model verification, the authors have chosen a variety of materials under various block load programs.
The materials used for calculations have undertaken different block loading programs.
Results The calculations have been performed for four materials.
Łagoda, Accumulation of fatigue damage using memory of the material, Procedia Materials Science (2014) 2-7

Journal of Membrane Science 342 (2009) 6–13 [2] Yan, L., Y.
Journal of Membrane Science, 276(1-2). 162-167 (2006)
[8] Yoo, S.H., et al., Journal of Membrane Science. 236(1-2) , (2004): p. 203-207 [9] Suryani and Y.
Liu, Journal of Membrane Science,. 332(1-2) (2009).. 121-128
Astinchap, Journal of Membrane Science,. 375(1-2) (2011). 284-294