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Factors related to function and sustainability of products such as material, manufacturability, component life and so on are defined as modular drivers.
Material.
In Eq.7, k is the number of modules of product, ki is kinds of materials of module i, is the ratio of each kind of material j in the ith module, is the EL of the utilization of material j, pi is kinds of components of each module i, sq is kinds of processes of component q, is the ratio of each kind of process l in the qth component, is the EL of process l, is the ratio of each kind of component p in the ith module, wr is the EL of the recycle of component p, wd is the EL of the disposal of component p. 3 Case Study A reduction gear is used as an example to show the effectiveness of the proposed methodology.
Acknowledgements This research is funded by the National Natural Science Foundation of China (#70971030).
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But a good combination of damping and mechanical properties is important for structural metallic materials.
Materials Sci.
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Rayb, Influence of bainite/martensite-content on the tensile properties of low carbon dual-phase steels, Materials Science and Engineering A. 474 (2008) 270–282
Wilkinsona, Effect of martensite distribution on damage behaviour in DP600 dual phase steels, Materials Science and Engineering A. 516 (2009) 7–16
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Damages caused to the FRP borehole surfaces due to hot and sharp metallic chips is a large concern in drilling of compound materials.
In the present study the vibration drilling process of light weight materials has been investigated.
Especially in aircraft industry the use of multi-layer materials is significantly increased during the last few years [2].
To join parts of dissimilar materials usually rivets or bolts are applied as fasteners.
Composites Part A, Applied Science and Manufacturing, 47 (2013) 41-51.

Materials and Methods A.
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Short-pile length 4.0m, pile diameter 450mm, the pile material plain concrete pile body strength to meet the C15.
The soil in this research were modeled as elasto-plastic materials following a Mohr-Coulomb criterion.
The piles, cushion and platform were assumed to be linearly elastic material.
The material properties of the various components are shown in Table 1.
Acknowledgement This work was financially supported by the National Science Foundation of China (No.51178185).

Introduction Copper materials have been widely in electric wires, thermal exchangers, containers and conduit pipes.
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Experimental Material.
A large embossing force excessively compresses the materials inside the micro-hole.
Acknowledgement This work was supported by the National Science Council of Taiwan under NSC grant (NSC-96-2221 -E-151-045).
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Corrosion resistance of X52 pipeline steel at sea mud zone Zhao Xia1, a, Liu Shuan1,2, b and Hou Baorong1,c 1 Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China 2Ningbo Institute of materials technology and engineering, Chinese Academy of Sciences, Ningbo 315201, PR China azx@qdio.ac.cn, bshuanliu312@163.com, c brhou@qdio.ac.cn Keywords: corrosion resistance; X52 pipeline steel; sea mud; corrosion products.
Generally, soils with high dissolved salt, high resistivity and high acidity are more aggressive towards metallic materials.
Yan et al reported that the representative of red clay soils in South China were extremely aggressive towards various metallic materials, and the corrosion rate of carbon steel in this kind of soil was above 0.1 mm/year, classified as the severe or very severe level [2].
X52 pipeline steel is one of the main pipeline materials because of its good ductile fracture resistance ability and corrosion resistance, which is widely used in natural gas, hydrocarbons and crude oil transport industry.
Huang, The degradation of tetracycline in a photo-electro-Fenton system, Chemical Engineering Journal, 231(2013)441-448