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Online since: January 2010
Authors: Jilt Sietsma, Maria Jesus Santofimia, Lie Zhao, Yoshiki Takahama
Sietsma
2,d
1Materials Innovation Institute (M2i), Mekelweg 2, 2628CD Delft, The Netherlands
2
Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2,
2628CD Delft, The Netherlands
3
Instituto Madrileño de Estudios Avanzados en Materiales (IMDEA-Materiales), E.
Scheme of the quenching and partitioning process Carbon Partitioning during the Partitioning Step The partitioning of carbon from the martensite to the austenite is the key phenomenon of the Q&P process.
Garcia de Andres: Materials and Design.
De Cooman, in: Materials Science and Technology (MS&T), Detroit, Michigan (2007) p. 73 [9] M.J.
Clarke, in: Solid-to-Solid Phase Transformations in Inorganic Materials, Phoenix, AZ (2005) p. 535
Scheme of the quenching and partitioning process Carbon Partitioning during the Partitioning Step The partitioning of carbon from the martensite to the austenite is the key phenomenon of the Q&P process.
Garcia de Andres: Materials and Design.
De Cooman, in: Materials Science and Technology (MS&T), Detroit, Michigan (2007) p. 73 [9] M.J.
Clarke, in: Solid-to-Solid Phase Transformations in Inorganic Materials, Phoenix, AZ (2005) p. 535
Online since: March 2015
Authors: Xun Yong Jiang, Dian Wen Feng
Structure Changes of Coating on NiTi Alloy Prepared by Micro-arc Oxidation in Na2SiO3 Electrolyte
Dianwen Fenga and Xunyong Jiangb*
School of material science and engineering, Tianjin University of technology, Tianjin, 300384, china
afengdianwen08@163.com, bjiangxunyong@tjut.edu.cn, to whom correspondence should be addressed
Keywords: Micro-arc oxidation, NiTi, Na2SiO3, Structure changes.
Materials and Methods The NiTi alloy with composition of Ti 49.5at% and Ni 50.5at% (Purchased from Northwest Institute for Non-ferrous metal Research, china) was cut into rectangular pieces (sample size 10 mm×10 mm ×2 mm).
Wayman (Eds),shape memory materials, Cambridge University press, Cambridge, uk, 1998, pp 267-281
Z., etal, Journal of Materials Science-Materials in Medicine 2012, 23 (12)
Proceeding of Fifth China National Conference on Functional Materials and Applications 2004: 2355
Materials and Methods The NiTi alloy with composition of Ti 49.5at% and Ni 50.5at% (Purchased from Northwest Institute for Non-ferrous metal Research, china) was cut into rectangular pieces (sample size 10 mm×10 mm ×2 mm).
Wayman (Eds),shape memory materials, Cambridge University press, Cambridge, uk, 1998, pp 267-281
Z., etal, Journal of Materials Science-Materials in Medicine 2012, 23 (12)
Proceeding of Fifth China National Conference on Functional Materials and Applications 2004: 2355
Online since: January 2014
Authors: Jun Zhang, Jia Xue Zhao
An Inquiry of Teaching Methods Based on the Psychological Needs of Comfort in Small Architectural Space
Jun Zhang 1,2, a, Jiaxue Zhao 1,b
1 School of Civil Engineering , Northeast Forestry University
2 School of Architecture, Harbin Institute of Technology
azhangjunzhaojiaxue@126.com, b644243315@qq.com
Keywords: Small Architectural Space, Psychological Needs, Sense of Comfort
Abstract.
Choice of Decorative Materials.
In the curriculum of design, teachers let the Students should grasp the properties of a variety of common decorative materials, and assume a scene and experience it personally.
Teachers should guide students to establish a correct understanding of materials, and different materials’ dominant trait in different types of architectural space.
Tadao Ando loves to use exposed concrete as a decorative materials in his design works, the very famous Church of Light is a typical example.
Choice of Decorative Materials.
In the curriculum of design, teachers let the Students should grasp the properties of a variety of common decorative materials, and assume a scene and experience it personally.
Teachers should guide students to establish a correct understanding of materials, and different materials’ dominant trait in different types of architectural space.
Tadao Ando loves to use exposed concrete as a decorative materials in his design works, the very famous Church of Light is a typical example.
Online since: May 2014
Authors: Yi Min Wang, Yassir A. Eltahir, Haroon A.M. Saeed, Yu Min Xia
ELTAHIR1,2, b, Yumin XIA1, c
and Wang YIMIN1, d*
1College of Materials Science and Engineering, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, P.R.
Experimental Materials and Instrumentation Isophthalic acid, pentaerythritol and p-Toluenesulfonic acid (p-TSA) were purchased from Sinopharm chemical reagent Co.
The crude product was collected as pale gray color, and was purified and precipitated from acetone in ethyl ether to remove the un-reacted materials and the catalyst, then was dried at 50°C under vacuum.
The studies of thermal behavior not only can explain the behavior of a polymer at the high temperatures, but also provide assistance for the establishment of selection criteria for specific applications of polymer materials [23, 24].
Kozlov, The structure and thermal stability of polymer materials: A fractal model, High Temp. 45 (2007) 313-316
Experimental Materials and Instrumentation Isophthalic acid, pentaerythritol and p-Toluenesulfonic acid (p-TSA) were purchased from Sinopharm chemical reagent Co.
The crude product was collected as pale gray color, and was purified and precipitated from acetone in ethyl ether to remove the un-reacted materials and the catalyst, then was dried at 50°C under vacuum.
The studies of thermal behavior not only can explain the behavior of a polymer at the high temperatures, but also provide assistance for the establishment of selection criteria for specific applications of polymer materials [23, 24].
Kozlov, The structure and thermal stability of polymer materials: A fractal model, High Temp. 45 (2007) 313-316
Online since: October 2021
Authors: Veronika Păltânea, Horia Gavrila, Veronica Paltanea, Iosif Vasile Nemoianu
Materials and Methods
The experimental data are measured on two types of non-oriented electrical steels NO20 and M330-35A [9, 10], using a laboratory single strip tester.
The errors computed with (6) and presented in Table 3 have a maximum value of 5 %, fact that put in evidence that the proposed model predicts very well the energy loss behavior in the case of both materials.
Gavrila, Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels, Journal of Magnetism and Magnetic Materials, 499 (2020) 166257
[11] Magnetic Materials—Part 3: Methods of Measurement of the Magnetic Properties of Magnetic Sheet and Strip by Means of a Single Sheet Tester, Standard IEC 60404-3:1992, 1992
Gavrila, Non-oriented silicon iron alloys used in efficient electrical motor, Key Engineering Materials, 821 (2019), 229-236.
The errors computed with (6) and presented in Table 3 have a maximum value of 5 %, fact that put in evidence that the proposed model predicts very well the energy loss behavior in the case of both materials.
Gavrila, Influence of mechanical and water-jet cutting on the dynamic magnetic properties of NO Fe-Si steels, Journal of Magnetism and Magnetic Materials, 499 (2020) 166257
[11] Magnetic Materials—Part 3: Methods of Measurement of the Magnetic Properties of Magnetic Sheet and Strip by Means of a Single Sheet Tester, Standard IEC 60404-3:1992, 1992
Gavrila, Non-oriented silicon iron alloys used in efficient electrical motor, Key Engineering Materials, 821 (2019), 229-236.
Online since: December 2014
Authors: Bo Quan Liu, Chang Quan Zhou, Bo Long Liu, Jia Ming Gao
Analysis for Collapse Process of Multi-layer RC Frame Structures under Earthquakes
Jiaming Gao1, a, Changquan Zhou 2,b ,Bolong Liu3,c and Boquan Liu4,d
1School of Civil Engineering, Chang'an University, Xi'an 710061,China
2School of Civil Engineering, Chang'an University, Xi'an 710061,China
3School of Civil Engineering, Chang'an University, Xi'an 710061,China
4School of Civil Engineering, Chang'an University, Xi'an 710061,China
ajiamingcareer@163.com,b15249264712@126.com, c liubolong2014@163.com, dbqliu@chd.edu.cn
Keywords: collapse; ANSYS/LS-DYNA; domain model of damage; story-drift; variable institutions.
The calculation model of structural collapses is not clear, and is not conducive to practical engineering application.
Therefore, the study on anti-seismic collapses' failure modes of RC-frame structures is very important in theory and engineering value.
Earthquake Engineering and Engineering Vibration,2008,28(3):74-87 [2] Bixiong Li, Heping Xie, Jianhui Deng,Etc .
Journal of disaster prevention and mitigation of engineering,2009,29(2):224-236 [3] GSA.
The calculation model of structural collapses is not clear, and is not conducive to practical engineering application.
Therefore, the study on anti-seismic collapses' failure modes of RC-frame structures is very important in theory and engineering value.
Earthquake Engineering and Engineering Vibration,2008,28(3):74-87 [2] Bixiong Li, Heping Xie, Jianhui Deng,Etc .
Journal of disaster prevention and mitigation of engineering,2009,29(2):224-236 [3] GSA.
Online since: March 2013
Authors: Ai Zhong Luo, Fang Juan, Chang Lu Chen, Sheng Jun Shao
Journal of Engineering Geology, 2006, 14(5): 621–626
Mechanics and Engineering, 1998, 20(6): 1–6 [3] SHEN Z.J: Mathematical model of soil structure characteristics [J].
Chinese Journal of Geotechnical Engineering, 1996, 18(1): 95–97
Chinese Journal of Geotechnical Engineering, 1999, 20(2): 651–656 [5] Maccarini .M: Laboratory studies of weakly bonded artificial soil.
Journal of Hydroelectric Engineering, 2005,24(2): 64-67 [13] ZENG J.J, LU T.T: An elastoplastic softening model of structured soil [J].
Mechanics and Engineering, 1998, 20(6): 1–6 [3] SHEN Z.J: Mathematical model of soil structure characteristics [J].
Chinese Journal of Geotechnical Engineering, 1996, 18(1): 95–97
Chinese Journal of Geotechnical Engineering, 1999, 20(2): 651–656 [5] Maccarini .M: Laboratory studies of weakly bonded artificial soil.
Journal of Hydroelectric Engineering, 2005,24(2): 64-67 [13] ZENG J.J, LU T.T: An elastoplastic softening model of structured soil [J].
Online since: October 2010
Authors: Fernando Peña, Miguel Meza
Typical Damages in Bell Towers
Observation and evaluation of seismic damage suffered by typical stone masonry historic churches
have allowed to identify their basic modes of failure and main characteristics of seismic response: the
behaviour is governed by the low tensile strength of constituting materials, which makes it almost
impossible to provide continuity within and between structural members, and leads to specific
mechanisms for resisting seismic actions.
The vertical damage is due to horizontal tensile stresses that cause the detachment of the vertical elements (walls) and not due to the material crushing (excessive compressive stresses).
Numerical Models for the Seismic Assessment of Bell Towers The key damages in the bell towers have shown that the main behaviour of these elements is in the plane of the façade.
Earthquake Engineering and Structural Dynamics, 36, 1029-1048
"Geotechnical engineering aspects of the June 1999 central Mexico earthquakes."
The vertical damage is due to horizontal tensile stresses that cause the detachment of the vertical elements (walls) and not due to the material crushing (excessive compressive stresses).
Numerical Models for the Seismic Assessment of Bell Towers The key damages in the bell towers have shown that the main behaviour of these elements is in the plane of the façade.
Earthquake Engineering and Structural Dynamics, 36, 1029-1048
"Geotechnical engineering aspects of the June 1999 central Mexico earthquakes."
Online since: October 2005
Authors: H. Chang, Tsing Tshih Tsung, J.Y. Sun, Hong Ming Lin, Liang Chia Chen
., Sec. 3, Taipei, 106, Taiwan, China
2
Department of Mechanical Engineering, National Taipei University of Technology
1 Chun-Hsiao E.
Rd., Sec. 3, Taipei, 106, Taiwan, China 3 Department of Materials Engineering, Tatung University, 40 Chungshan N.
In addition, retaining the sample quality and its data representation with regard to process characteristics is the key factor in determining the success of the optimization work.
Lin: 6th International Conference on Nanostructured Materials, Orlando, Florida, Vol. 1 (2002), PC3.20
Rd., Sec. 3, Taipei, 106, Taiwan, China 3 Department of Materials Engineering, Tatung University, 40 Chungshan N.
In addition, retaining the sample quality and its data representation with regard to process characteristics is the key factor in determining the success of the optimization work.
Lin: 6th International Conference on Nanostructured Materials, Orlando, Florida, Vol. 1 (2002), PC3.20