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Online since: July 2008
Authors: Chang Su Woo, Wan Doo Kim, Shin Hur
Fatigue Life Evaluation of Automotive Engine Mount Insulator
Chang-Su Woo
1, a, Wan-Doo Kim
1,b , Shin Hur1,c
1
Korea Institute of Machinery & Materials, 171, Jang-Dong, Yuseong-Gu, Daejeon, Korea.
Displacement - maximum Green-Lagrange strain relationships of the 3D dumbbell specimen and engine mount were obtained from the nonlinear FEA using the hyperelastic material model determined from the material tests [4,5].
Acknowledgement This research has been supported by Development of materials and Component program of Ministry Commerce Industry & Energy, Korea.
[2] Mars WV, Fatemi A., "A literature Survey on fatigue analysis approaches for rubber", International Journal of Fatigue, Vol. 24(2002), p. 949-961
[6] Yamaguchi, H. & Nakagawa M., "Fatigue Test Technique for Rubber materials of Vibration Insulator", International polymer Science and Technology, vol. 20 (1993), p 64-69.
Displacement - maximum Green-Lagrange strain relationships of the 3D dumbbell specimen and engine mount were obtained from the nonlinear FEA using the hyperelastic material model determined from the material tests [4,5].
Acknowledgement This research has been supported by Development of materials and Component program of Ministry Commerce Industry & Energy, Korea.
[2] Mars WV, Fatemi A., "A literature Survey on fatigue analysis approaches for rubber", International Journal of Fatigue, Vol. 24(2002), p. 949-961
[6] Yamaguchi, H. & Nakagawa M., "Fatigue Test Technique for Rubber materials of Vibration Insulator", International polymer Science and Technology, vol. 20 (1993), p 64-69.
Online since: November 2014
Authors: Ming Zhang, Jia Jun Ren, Hao Zou
The first fem is using UG solid modeling capabilities to create model .The finite element model is generated by UG_ANSYS, including setting the loads of material properties and boundary conditions ,also loading work.
Science and technology innovation foundation by Taiyuan University of Technology.
Product related reference effect design technical training materials [M].
[4] Li Chun-wang.The air force engineering university faculty of science.
ANSYS finite element analysis method based on UG pretreatment Journal of the air force engineering university ,5th, October ,2009
Science and technology innovation foundation by Taiyuan University of Technology.
Product related reference effect design technical training materials [M].
[4] Li Chun-wang.The air force engineering university faculty of science.
ANSYS finite element analysis method based on UG pretreatment Journal of the air force engineering university ,5th, October ,2009
Online since: October 2008
Authors: Quan Chen, Andrew M. Soutar
Perovskite based materials are widely used in technical applications.
Ulrich, Materials Research Society, Pittsburgh, Pennsylvania, (1990). 6.
Ulrich, Materials Research Society, Pittsburgh, Pennsylvania, (1989). 7.
Kosinski, Journal of Materials Processing Technology, in press. 24.
Hanifi, Materials Letters, Vol. 61(2007), p.3978.
Ulrich, Materials Research Society, Pittsburgh, Pennsylvania, (1990). 6.
Ulrich, Materials Research Society, Pittsburgh, Pennsylvania, (1989). 7.
Kosinski, Journal of Materials Processing Technology, in press. 24.
Hanifi, Materials Letters, Vol. 61(2007), p.3978.
Online since: December 2011
Authors: Peng Ping Xie, Kai Guo, Jin Zhou Chen, Xin Fa Li, Ming Jun Niu
Preparation and Characterization of Biodegradable Polylactic acid/Gelatinized Cornstarch Foams
Pengping Xiea, Mingjun Niub, Kai Guoc, Jinzhou Chen*d, Xinfa Li e
School of Materials Science and Engineering, Zheng Zhou University, Zhengzhou 450001, China
a pengping870823@126.com, bniumj@zzu.edu.cn, cguokaiyj@zzu.edu.cn, dcjz@zzu.edu.cn,
e lixinfa@zzu.edu.cn
Keywords: polylactic acid, gelatinized cornstarch, blowing agent, foam, blend
Abstract.
Materials and Methods Materials.
The formulation of all experimental materials was shown in Table 1.
Park: Materials Science and Engineering Vol.30 (2010), p. 255 [2] Srikanth Pilla, Seong G.
Hanna: Journal of Polymers and the Environment Vol.12 (2004), p. 57
Materials and Methods Materials.
The formulation of all experimental materials was shown in Table 1.
Park: Materials Science and Engineering Vol.30 (2010), p. 255 [2] Srikanth Pilla, Seong G.
Hanna: Journal of Polymers and the Environment Vol.12 (2004), p. 57
Online since: January 2019
Authors: Fang Po Li, Chun Feng, Hang Wang, Li Hong Han, Cai Hong Lu, Yao Rong Feng, Long Jiang, Shang Yu Yang, Li Juan Zhu, Hui Qun Liu, Le Wang
Deformation Stability of a Low-Cost Titanium Alloy Used for Petroleum Drilling Pipe
Long Jiang1,2,3,a*, Chun Feng1,2,3,b*, Huiqun Liu4, Le Wang4, Lihong Han1,2,3,c*, Yaorong Feng1,2,3, Fangpo Li1,2,3, Caihong Lu1,2,3, Lijuan Zhu1,2,3,
Hang Wang1,2,3 and Shangyu Yang1,2,3
1State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi’an, Shaanxi 710077, China
2Shaanxi key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an, Shaanxi 710077, China
3Key Laboratory of Petroleum Tubular Goods Engineering, CNPC, Xi’an, Shaanxi 710077, China
4School of Materials Science and Engineering, Central South University, Changsha, Hunan 410083, China
ajianglong003@cnpc.com.cn, bfengchun003@cnpc.com.cn, chanlihong@cnpc.com.cn
Keywords: Titanium Alloy; Hot Deformation; Flow Stress; Processing Map
Abstract.
The used materials are Ti-5wt.
Watkins, Recent Developments in Titanium Alloy Application in the Energy Industry, Materials Science and Engineering A , 243 (1998) 305–315
Environmentally Assisted Cracking of Drill Pipes in Deep Drilling Oil and Natural Gas Wells, Journal of Materials Engineering and Performance, 21 (2012) 1061–1069
Zhao, Research and application progress of Titanium alloy petroleum pipe, Rare Metal Materials and Engineering, 43 (2014) 1518-1524
The used materials are Ti-5wt.
Watkins, Recent Developments in Titanium Alloy Application in the Energy Industry, Materials Science and Engineering A , 243 (1998) 305–315
Environmentally Assisted Cracking of Drill Pipes in Deep Drilling Oil and Natural Gas Wells, Journal of Materials Engineering and Performance, 21 (2012) 1061–1069
Zhao, Research and application progress of Titanium alloy petroleum pipe, Rare Metal Materials and Engineering, 43 (2014) 1518-1524
Online since: January 2012
Authors: Yang Wang, Chao Yi Peng
Keennon et al., Multifunctional Structure-Battery Materials for Enhanced Performance in Small Unmanned Air Vehicles, ASME International Mechanical Engineering Congress and Exhibition, New York, United States (2003)
[4] Rohatgi, J.
Aglietti, The Thermal Environment Encountered in Space by a Multifunctional Solar Array, Aerospace Science and Technology. 14 (2010) 213-219
Wang, Thermal Analysis of Lithium-Ion Batteries, Journal of Power Sources. 140 (2005) 111-124
Cosculluela, A Multiscale Model for the Effective Thermal Conductivity Tensor of a Stratified Composite Material, International Journal of Thermophysics. 26 (2005) 191-202
Newman, A General Energy Balance for Battery System, Journal of Electrochemical Society. 132 (1985) 5-12.
Aglietti, The Thermal Environment Encountered in Space by a Multifunctional Solar Array, Aerospace Science and Technology. 14 (2010) 213-219
Wang, Thermal Analysis of Lithium-Ion Batteries, Journal of Power Sources. 140 (2005) 111-124
Cosculluela, A Multiscale Model for the Effective Thermal Conductivity Tensor of a Stratified Composite Material, International Journal of Thermophysics. 26 (2005) 191-202
Newman, A General Energy Balance for Battery System, Journal of Electrochemical Society. 132 (1985) 5-12.
Online since: January 2012
Authors: Wei Ping Cao, Qi Chao Shi
Both the embankment fill and the foundation soils were considered as Mohr-Coulomb materials.
The material parameters are listed in Table 1.
The physical and mechanical parameters of the materials Materials [kN/m3] [kN/m3] [m/d] [Mpa] [kPa] [°] [°] Concrete- asphalt 23 23 - 1000 0.17 - - - Gravel-clay mixture 20 24 1.0 30 0.25 5 30 0 Crushed stone 20 23 1.0 40 0.25 0 32 5 Crust 16 18 0.00015 6 0.25 15 20 0 Soft clay 14 17 0.00065 4 0.35 10 15 0 Results and Analyses Fig. 2a shows the settlements at the base of the existing embankment rested on a 20 m thick foundation soils after the construction.
Huang: Journal of Geotechnical Engineering, Vol. 119 (1993) No.1, p.127
Day: Journal of Geotechnical Engineering, Vol.120 (1994) No.11, p.1980
The material parameters are listed in Table 1.
The physical and mechanical parameters of the materials Materials [kN/m3] [kN/m3] [m/d] [Mpa] [kPa] [°] [°] Concrete- asphalt 23 23 - 1000 0.17 - - - Gravel-clay mixture 20 24 1.0 30 0.25 5 30 0 Crushed stone 20 23 1.0 40 0.25 0 32 5 Crust 16 18 0.00015 6 0.25 15 20 0 Soft clay 14 17 0.00065 4 0.35 10 15 0 Results and Analyses Fig. 2a shows the settlements at the base of the existing embankment rested on a 20 m thick foundation soils after the construction.
Huang: Journal of Geotechnical Engineering, Vol. 119 (1993) No.1, p.127
Day: Journal of Geotechnical Engineering, Vol.120 (1994) No.11, p.1980
Online since: August 2013
Authors: Jian Song Yuan, Dan Ying Gao, Lin Yang
Experiment overview
Materials used in concrete mixes included water, cement, aggregates and steel fiber.
The properties of other materials used are given in Table 1-Table 3.
Gravel gradation results Sieve size /mm 25 20 16 10 5 2.5 Cumulative sieve residue% 0 3.7 23.2 48.4 81.2 98.5 The forced-power mixer is applied to ensure the materials were uniformly distributed in the mixture.
“Effect of Steel Fiber Feinforced Concrete Strength from Steel Fiber Mixing Volume Content,” Building science, Vol. 24, no. 3. 2008
“Effect of Types and Volume Percentage of Steel Fiber on Properties of Concrete,” Journal of building material, Vol. 6, no. 4. 2003
The properties of other materials used are given in Table 1-Table 3.
Gravel gradation results Sieve size /mm 25 20 16 10 5 2.5 Cumulative sieve residue% 0 3.7 23.2 48.4 81.2 98.5 The forced-power mixer is applied to ensure the materials were uniformly distributed in the mixture.
“Effect of Steel Fiber Feinforced Concrete Strength from Steel Fiber Mixing Volume Content,” Building science, Vol. 24, no. 3. 2008
“Effect of Types and Volume Percentage of Steel Fiber on Properties of Concrete,” Journal of building material, Vol. 6, no. 4. 2003
Online since: June 2012
Authors: Hong Lei Li, Guo Ping Cen, Qiang Kang Gu
Finite element model.ANSYS finite element model mainly includes definition unit types,define material properties,creating finite element model and meshing,etc.For thermodynamics model,often choosed unit types are PLANE55(four nodes quadrilateral units) and LINK 32(2-d node heat conduction unit).By literature review and material[12] and the experiment data,the thermal physical parameters of material are defined as is shown in table 1.Pavement structure layer in turn is top-down:10cm asphalt concrete,5cm insulating layer,35cm cement concrete and 30cm two ash gravel,100cm permafrost is under pavement.The electrical conductor spaces 8cm,and deep 5cm.
Tab.1 Thermal parameter of material parameters material λ/[W·(m∙˚C)-1] c/[J·(kg∙˚C)-1] ρ/(kg·m-3) ice 2.2 2050 917 old snow 0.46 2090 400 asphalt concrete 1.03 900 2100 cement concrete 0.87 840 2300 two ash gravel 0.95 820 1800 permafrost 1.41 1840 1850 Initial conditions.Temperature field of airport pavement in a certain time have close relationship with its initial temperature field.As the approximate calculation,hypothesis that soil freezing temperature is 0˚C is made,and latent heat of phase transition process in soil is not considered.Suppose that from the bottom of permafrost to airport pavement surface,because each material coefficient of thermal conductivity is different,the airport pavement initial temperature is piecewise linear change,namely from 0˚C changes to the temperature outside[13].Using ANSYS steady heating transfer analysis,surface temperature field under certain temperature can be gotten,this results of calculation is initial temperature of the finite element calculation
Reference: [1]ZHANG HONG-WEI,HAN SEN.Summarize technology of deicing in asphalt pavement[J].Science and Technology for Traffic in Hei long jiang.2008(3):8-9 [2]MIU XIAO-PING,ZI DONG-YI.Study carbon fiber reinelectrically conductive concrete on Airport Pavement[J].Concrete and Cement Products,2008(4):41-45 [3]LUO HONG,LUO LI-BIN.Affecting and strategies for environment of solvent snow-melting[J].
Environmental monitor in China,2004,20(1):55-57 [4] Mehta P K and Burrows R W.Building Dural Structures in the 21st Centry[J].Concrete International, 2001,(3):57−63 [5]Sherif Yehia,Christopher Y Tuan.Conductive Concrete Overlay for Bridge Deck Deicing [J].ACI Materials Journal,1999,96(3): 382−390 [6]ZHANG SHU-YING.Affecting and strategies for environment of solvent snow-melting [J].Journal of Chen-De Oil Higher Technological Academy.2006,9(3):46−48 [7]LI YAN-FENG,WU HAI-QIN.Experimental Study on Electrical Road Heating System for Snow Melting[J].Journal of Beijing Technology University.2006(3):217−222 [8]WU HAI-QIN.
Tab.1 Thermal parameter of material parameters material λ/[W·(m∙˚C)-1] c/[J·(kg∙˚C)-1] ρ/(kg·m-3) ice 2.2 2050 917 old snow 0.46 2090 400 asphalt concrete 1.03 900 2100 cement concrete 0.87 840 2300 two ash gravel 0.95 820 1800 permafrost 1.41 1840 1850 Initial conditions.Temperature field of airport pavement in a certain time have close relationship with its initial temperature field.As the approximate calculation,hypothesis that soil freezing temperature is 0˚C is made,and latent heat of phase transition process in soil is not considered.Suppose that from the bottom of permafrost to airport pavement surface,because each material coefficient of thermal conductivity is different,the airport pavement initial temperature is piecewise linear change,namely from 0˚C changes to the temperature outside[13].Using ANSYS steady heating transfer analysis,surface temperature field under certain temperature can be gotten,this results of calculation is initial temperature of the finite element calculation
Reference: [1]ZHANG HONG-WEI,HAN SEN.Summarize technology of deicing in asphalt pavement[J].Science and Technology for Traffic in Hei long jiang.2008(3):8-9 [2]MIU XIAO-PING,ZI DONG-YI.Study carbon fiber reinelectrically conductive concrete on Airport Pavement[J].Concrete and Cement Products,2008(4):41-45 [3]LUO HONG,LUO LI-BIN.Affecting and strategies for environment of solvent snow-melting[J].
Environmental monitor in China,2004,20(1):55-57 [4] Mehta P K and Burrows R W.Building Dural Structures in the 21st Centry[J].Concrete International, 2001,(3):57−63 [5]Sherif Yehia,Christopher Y Tuan.Conductive Concrete Overlay for Bridge Deck Deicing [J].ACI Materials Journal,1999,96(3): 382−390 [6]ZHANG SHU-YING.Affecting and strategies for environment of solvent snow-melting [J].Journal of Chen-De Oil Higher Technological Academy.2006,9(3):46−48 [7]LI YAN-FENG,WU HAI-QIN.Experimental Study on Electrical Road Heating System for Snow Melting[J].Journal of Beijing Technology University.2006(3):217−222 [8]WU HAI-QIN.
Online since: September 2014
Authors: Lei Sun, Yang Liu, Wei Wang
Properties of unbonded flexible pipe under axial force
Wei Wang1, a, Lei Sun2, b, Yang Liu3, c
1College of Shipbuilding Engineering, Harbin Engineering University, 150001, China
2IT Center, Materials Group, Daqing Oilfield Limited Company, 163712, China
3Turbine Technology Research Center, Research Institute, Harbin Turbine Company Limited, 150046, China
aemail: mimal@126.com, bemail: sunl007@cnpc.com.cn, cemail: leo_hit@163.com
Keywords: Flexible Pipe; Unbonded; Axial Force; Contact; Friction
Abstract.
Carcass layer is an orthotropic layer and not in regular shape, as a result, the equivalent modulus is not the material modulus.
Journal of Offshore Mechanics and Arctic Engineering, 1987, 109: 263-269 [3] P.
Journal of Strain Analysis, 2001, 36(3): 265-275 [6] J.
Journal of Offshore Mechanics and Arctic Engineering, 2004, 126: 141-146 [14] Wei Wang, Geng Chen.
Carcass layer is an orthotropic layer and not in regular shape, as a result, the equivalent modulus is not the material modulus.
Journal of Offshore Mechanics and Arctic Engineering, 1987, 109: 263-269 [3] P.
Journal of Strain Analysis, 2001, 36(3): 265-275 [6] J.
Journal of Offshore Mechanics and Arctic Engineering, 2004, 126: 141-146 [14] Wei Wang, Geng Chen.