Search results

Design of Virtual Prototype for Cold Roll Forming Machine of Side Panel of Engineering Vehicles and Numerical Simulation of the Forming Process Qiubo Huang1, a, Junrui Song1,b and Qingbo Yang1,c 1University of Science and Technology Liaoning, Anshan, Liaoning, China ahqb0412@126.com, b dehuaaaa@126.com, cbocaiyang1986@126.com Keywords: Cold roll forming, Virtual prototype, Numerical Simulation Abstract.
Since the deformation of the forming roll is very small in the process of forming, we define it as a rigid body, and choose rigid material as material model (Rigid Body).
Define material properties: density: 7850, elastic modulus: 2.1e11, Poisson ratio: 0.3.
Sheet metal is represented by a 1200mm*700mm*1.5 mm thin plate, and the material model is chosen as a bilinear kinematic hardening elastoplastic one.
Journal of Yanshan University (In Chinese), 2000, 24(1):15-18

The material of the frame is carbon structural steel of Q235.
According to the stress state of the bicycle, m presents material constants which value is 9.
[σ] presents the allowable stress of material, which the value is: (2-3) The maximum stress of the frame under different loads is 38.581MPa, meeting the requirement of the fatigue strength.
International Journal of Fatigue, 2002, 24 (11): 1149 -1157
[4] Lothar Issler, Wolfgang Weise, Udo Merk, Investigation of the fatigue behaviour of a mountain bike steering bar , Materialpruefung/Materials Testing, 2007, 49(1-2): 25-30 [5] ZOU Zhun,YUAN Xiang-kai,YU Mu-huo, Finite element analysis for carbon fiber bicycle frame, Design and Research[J],2011,38(9):4-7 [6] Xu Wen, the bicycle rider design method research and application considering the posture: [Master degree thesis], Tianjin: Tianjin University ,2007 (in Chinese) [7] GB 3565-2007,Safety requirements for bicycles,2005(in Chinese) [8] Department of Mechanical Parts of Tianjin University,Mechanical Parts,Tianjin:Tianjin Science and Technology Press,1983(in Chinese)

Fabrication of a Superhydrophobic Aluminum Alloy Surface by Phosphoric Acid-Dichromate Method Ruomei Wu1, a*, Guanghua Chao1, b, Haiyun Jiang1, c 1 School of Packing Materials and Engineering, Hunan University of Technology, Zhuzhou, China acailiaodian2004@126.com, bchaoguanghua@163.com, cjhyun@163.com Keywords: Superhydrophobic surface; Aluminum alloy; Phosphoric acid-dichromate method; Self-cleaning.
One is to produce a rough structure on a hydrophobic surface, and the other is to modify a rough surface by materials with low surface free energy [3-5].
Experimental Materials Aluminum alloy (3003) was kindly supplied by Zhuzhou electric locomotive Co., LTD.
Acknowledgments This work is supported by Hunan Science and Technology Key Project (NO. 2011FJ2009, 2012GK3085).
Yuan: Journal of Hunan University of Technology, Vol. 25 (2011), p. 5-8.

You State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070, China Keywords: Piezoelectric composite, PZT/PVDF, Piezoelectricity, Solution-mixing Abstract.
Lead acetate (Pb(CH3COO)2), Zirconium oxychloride (ZrOCl2), and tetra-n-butyl titanate (Ti(OC4H9)4, were used as starting materials.
Zhang: Functional Materials.
Wu: Journal of Shanhai University (nature science edition), Vol. 5.No. 2 (Apr.1999), p. 119

Restricted to materials manufacturing and processing, actually the dielectric constant is anisotropic.
In composite radome system, these two dielectrics are composite material and air.
In the model, one is air gap, and the other is the composite material.
Acknowledgement This work was supported in part by the Shanghai Municipal Science and Technology Commission under Grant 11DZ2260800.
[3] Shengfang Zhang, Dongming Guo, Zhenyuan Jia, Renka Kang and Aifeng Shi: Chinese Journal of Scientific Instrument Vol. 25 (2004), p. 34 In Chinese

The section of the concrete filled steel tube column is smaller than the section of the reinforced concrete column, thus realizing cost savings in material and labor.
A coalition of Tianjin Third Building Construction Company, Tianjin Architecture Design Institute and Tianjin University developed a new system of lift slab construction using concrete filled steel tube columns, a State Award of Science and Technology for their effort.
As steel tube is used as a concrete form, not only concrete form materials, but also labor costs are saved. 3.The adaptability of technology of LSCSTC is broad.
Scarangello, Journal of Performance of Constructed Facilities, 6(4), 211 (1992) [2] Jinyuan Zhang and Jinzhong Wu, Architecture Technology, 29(8), 564-565 (1998), In Chinese.

It has become the main direction of RC structure fire resistance performance study at home and abroad to study the high temperature performance of RC materials and fire resistance performance of structure; enhance the fire resistance performance of structure via fire resistance design; evaluate, strengthen and repair the fire damaged materials and structures properly.
References [1] Yijun Tang, Yaozhuang Li, Optimal Method for Fire Resistance Design Parameters of RC Structure Based on Stochastic FEM Reliability, Fire Safety Science. 14 (2005) 16-20.
[3] Wei Li, Zhenhai Guo, Experimental Investigation on Strength and Deformation of Concrete at Elevated Temperature, Journal of Building Structures. 14 (1993) 8-16.
[4] Xueyu Xiong, Yue Cai, Fire-resistant Design of Constructional Countermeasures for Prestressed Concrete Structures, Journal of Natural Disasters. 14 (2005) 127-131.

Experimental Study of Cold-Formed Steel Moment Connections with Screw Fasteners ADELINE Ng Ling Ying1,a and LAW Zhi Yong1,b 1Faculty of Engineering, Computing and Science, Swinburne Sarawak, Malaysia aang@swinburne.edu.my, blawzhiyong@hotmail.my Keywords: connection, cold-formed steel, screw fasteners, experimental study Abstract.
Both CFS sections had the same material properties as they were rolled from the same steel coil.
Table 2 Mechanical properties of steel sections Section Material thickness, t [mm] Yield strength, fy [MPa] Ultimate strength, fu [MPa] Elongation, e [%] 125PFC 5.5 300 363 30 C-Channels 1.2 648 654 9 As for the fasteners, ASTeks self-drilling self-tapping screws, AST5 12-24 x 32 HxW were chosen.
LaBoube: Self-Drilling Screw Joints for Cold-Formed Channel Portal Frames, Journal of Structural Engineering 130(11) (2004), p.1799-1806 [5] Standards Australia: AS 4100: 1998 (R2016) Steel Structures, Homebush, Australia (2016) [6] W.K.
Wong: The Structural Behavior of Connections of Cold-Formed Steel Portal Frames, Journal of Constructional Steel Research 61 (2005), p.1332–1352 [7] European Committee for Standardization: Eurocode 3: Design of steel structures: Part 1.8: Design of joints, EN 1993-1-8:2005, (2005) [8] AISI Standard: North American Specification for the Design of Cold-formed Steel Members, American Iron and Steel Institute (2012) [9] Standards Australia/Standards New Zealand: AS/NZ 4600: 2018 Cold-formed Steel Structures, Sydney, Australia (2018) [10] Standards Australia: AS 1391: 2007 (R2017) Metallic Materials – Tensile Testing at Ambient Temperature, Sydney, Australia (2017) [11] ASTeks Fasteners – Product Catalogue.

Choi, Emission characteristics of exhaust gases and nanoparticles from a diesel engine with biodiesel-diesel blended fuel (BD20), Journal of Mechanical Science and Technology, (2009) 2555-2564
Applied Mechanics and Materials, 315 (2013) 517-522
Journal of Energy and Environment, 3 (2004) 61-68
Applied Mechanics and Materials, 315 (2013) 293-298.

Among ceramics filter support materials, such as titanium alumina, mullite, zirconia, spodumene, and cordierite, cordierite is known as a good candidate material due to its high thermal shock resistance and low thermal expansion coefficient [2, 3].
Acknowledgement 7��V��RU ��DV�VXSSRUWHG�E���UDQW�1R�57����������IURP�W�H�5H��RQD��7HF�QR�R����QQRYDW�RQ�SUR�UDP�DQG� SDUW�D����VXSSRUWHG�E��W�H�VHFRQG�VWD�H�RI�%UD�Q�"RUHD����3UR�UDP�IXQGHG�E��W�H�0�Q�VWU��RI�(GXFDW�RQ� � 'XPDQ�5HVRXUFHV�'HYH�RSPHQW)�5HSXE��F�RI�"RUHD� References [1] Jin Yang, "Studies on the Control of Porosity and Mean Pore Size in Cordierite Ceramics," Journal of the Korean Ceramic Society Vol.35, No. 4, pp. 399-405 (1998)
[2] Young-Bae Kim, Eul-Hoon Cho, Yoon-Young Chang, Hee-Soo Lee and Duck-Kyun Choi, "Preparation and Characteristics of Catalyst Coated Cordierite Filter," Korean Journal of Material Research Vol. 12, No. 2 (2002)
Ruhle, "Design of Transformation-Toughened Ceramics in Advances," Vol. 3, Science and Technology of Zirconia (1981).