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Since, high internal pressure is used, dies and inserts are made from high strength materials, and designed to be closed for safty reasons.
During die and process designs, material properties of tubes, stress–strain relationship (flow stress) is necessary for study of plastic deformation of tubular materials.
Fig. 6 Comparison of bulge height between FEA results and hydroformed tubes Conclusion A new analytical model for flow stress determination of tubular materials is proposed.
[2] Muammer Koç, Yingyot Aue-u-lan, Taylan Altan : On the Characteristics of Tubular Materials for Hydroforming - Experimentation and Analysis, International Journal of Machine Tools & Manufacture, 41 (2001), pp. 761–772 [3] Y.M.
Altan: Evaluation of tubular materials by a hydraulic bulge test, Journal of Machine Tools & Manufacture 47 (2007), p. 343-351

Introduction Technological process of manufacturing products from polymeric materials typically includes a cooling stage accompanied by crystallization of the material.
References [1] Shardakov I.N., Matveyenko V.P., Pistsov N.V., Beghishev V.P., Simulation of thermomechanical processes in crystallizing polymers, Polymer Engineering and Science. 37(8) (1997) 1270-1279
[2] Zavyalova T.G., Trufanov N.A., Constitutive relations for a viscoelastic body under crystallization conditions, Journal of Appl.
[4] Dupaix R.B., Boyce M.C., Constitutive modeling of the finite strain behavior of amorphous polymers in and above the glass transition, Mechanics of Materials. 39 (2007) 39–52
[5] Rogovoy A.A., Constitutive relations for finite elastic-inelastic strains, Journal of Appl.

It is characterized by an excellent material usage, the superior material properties and the possibility to reach small geometrical tolerances [01].
The reason is that these values are coupled by the material deformation.
Button, Alternative lubrication and lubricants for the cold extrusion of steel parts, Journal of Materials Processing Technology 179 (2006) 87–91
Bjerrum, Electrolytic deposition of amorphous and crystalline zinc–calcium phosphates, Journal of Materials Science 33 (1998) 30593063
Bay, The state of the art in cold forging lubrication, Journal of Materials Processing Technology 46 (1994) 19–40

Journal of Southeast University(Natural Science Edition). 2010(5): 1052-1056
Aiaa Journal. 1973, 12(2): 185-190
Aiaa Journal. 2001, 39(2): 271-278
Smart Materials and Structures. 2001, 10(3): 446
Journal of Tongji University(Natural Science Edition). 2003(3): 258-262

It was observed that both Pd(II) complexes displayed properties of good catalysts for the reaction, indicated by 100% conversion of the starting materials to the subtituted alkene product after 6 hours of reaction time at 100oC in inert conditions.
The reaction was monitored by measuring the % conversion of the aryl iodide starting material using gas chromatography [9].
It was observed that both Pd(II) complexes displayed properties of good catalysts for the reaction, with 100% conversion of the starting materials to the subtituted alkene product after 6 hours of reaction time at 100oC in inert conditions.
Joseyphus: Journal of Saudi Chemical Society 16 (2012), p. 85-87 [3] J.
El-ajaily: Microchemical Journal, 81 (2005), p. 193 [6] V.

Especially compared to polymeric membranes which are the commonly used materials in MEMS device fabrication, silicon nitride layers have several advantages.
Specifically, silicon nitride films are typical structural materials for integrated circuits (IC) passivation, etching masks, device dielectrics, and MEMS microstructures.
Bellutti, et al., Applied Surface Science, 256 (2009) 251-255
Wei, Journal of Micromechanics and Microengineering, 16 (2006) 869
Sheng, et al., Materials Science and Engineering B, 98 (2003) 248-254

Pechyen1, 3,d 1Department of Packaging and Materials Technology, Faculty of Argo-Industry, Kasetsart University, Bangkok 10900, Thailand 2National Metal and Materials Technology Center, 114 Thailand Science Park, Pathumthani 12120, Thailand 3Center for Advanced Studies in Agriculture and Food, KU Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand (CASAF, NUR-KU, Thailand) aathiwat.si@hotmail.com, bkhanthh@mtec.or.th, cduangdua@mtec.or.th, dchiravoot.p@ku.ac.th Keywords: Activated Carbon, Waste Tire, Ethylene Absorbent, Active Packaging Abstract.
Activated carbon is a processed carbon material with a highly developed porous structure and a large internal specific surface area.
Yunhong: International Journal of Food Science & Technology.
Sricharoenchaikul: Materials Science Forum.Vol.561-565(3), (2007), p.1719-1722 [3] V.
Mesquita, K.Sapag: Journal of Hazardous Materials.

., 1574 Sofia, Bulgaria 2Department of Material Science and Technology, University of Ruse „Angel Kanchev“, 8 Studentska Str., 7017 Ruse, Bulgaria atontchev@vtu.bg, b*eyankov@uni-ruse.bg, cvgaydarov@vtu.bg, dn_d_hristov@vtu.bg Keywords: austenitic steels, defmot, multicriteria optimization, regression models, mechanical properties.
Dobrzański, W Sitek, Designing of the chemical composition of constructional alloy steels, Journal of Materials Processing Technology, Volumes 89–90, 1999, Pages 467-472
[3] Jing-Bo Li, Caifu Yang, Han Dong, Computer simulations of phase transformation in steels, Materials & Design, Volume 22, Issue 1, 2001, Pages 39-43
Comparative study on intelligent and classical modeling and composition optimization of steel alloys, Journal of Materials Sciences and Engineering with Advanced Technology, 4(1), 69-91
[8] Tontchev N., Materials science, Effective solutions, and technological variants, - Lambert, Academic Publishing, 2014

Experimental materials, equipment and methods The alloy in this test is composed of Al-5% Fe-1.2% Si-1% Mg-0.6% Cu-0.5% Mn; raw materials used to fuse the alloy including aluminum, magnesium, Fe, Mn, Cu, Si are added in the form of master alloys.
But at temperature above 200 ℃, the transient mechanical properties of materials decreased significantly.
References [1]ZHOU Zhenping,LI Rongde, Journal of Shenyang University of Technology 2003,(2):p.101-104.In Chinese [2]GAO Wenyu, ZHANG Yongchang Materials Review 1994,(3):p.17-20.
Intermetallic Elsevier Science SA,1995, (1): p.128-133
The Chinese Journal of Nonferrous Metals, 2005,(4):p.621-625.

But many sausage processing enterprises do not own the slaughter line or have more troubles in purchasing the fresh meat; most of them selected frozen meat as raw materials.
Materials and Methods Raw materials and Sample preparation.
This trend was similar to our previous study [4], when the raw materials were frozen meat, the production rates increased slowly with deferring of freezing time postmortem.
Journal of Muscle Foods. 2010, 21(2), 177-196 [4] Farouk M M, Wieliczko K J and Merts I.
Journal of Muscle Foods [J], 2009, 20（2）:186-200.