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Formation Process and Mechanical Deformation Behavior of a Novel Laser-Printed Compression-Induced Twisting-Compliant Article

Jie Gao, Dongdong Gu, Chenglong Ma, Donghua Dai, Lixia Xi, Kaijie Lin, Tong Gao, Jihong Zhu, Yuexin Du

Engineering 2022, Volume 15, Issue 8,   Pages 133-142 doi: 10.1016/j.eng.2021.03.032

Abstract:

A novel compression-induced twisting (CIT)-compliant mechanism was designed based on the freedom and

Keywords： Laser 3D printing     Laser powder bed fusion     Compression-induced twisting-compliant mechanism     Compression–torsionproperty     Mechanical properties    

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Fatigue crack growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined torsion

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 905-913 doi: 10.1007/s11709-021-0683-2

Abstract: In a nuclear powerplant, the rotary equipment, such as a pump directly fitted with hanger in the piping system, experiences torsional and bending loads. Higher crack growth rate occurs because of this torsional load in addition to the bending load. Hence, it is necessary to study the fatigue behavior of piping components under the influence of combined torsional and bending load. In this study, experimental fatigue life evaluation was conducted on a notched stainless steel SA312 Type 304LN straight pipe having an outer diameter of 170 mm. The experimental crack depth was measured using alternating current potential drop technique. The fatigue life of the stainless steel straight pipe was predicted using experiments, Delale and Erdogan method, and area-averaged root mean square–stress intensity factor approach at the deepest and surface points of the notch. Afterward, the fatigue crack growth and crack pattern were discussed. As a result, fatigue crack growth predicted using analytical methods are in good agreement with experimental results.

Keywords： fatigue life     Delale and Erdogan method     RMS–SIF approach     stainless steel     torsion and bending load    

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Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1415-1425 doi: 10.1007/s11709-021-0786-9

Abstract: To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression,the compression behavior of CAC column with different types of steel and initial eccentricity (eNu under axial and eccentric compression

Keywords： coral aggregate concrete column     axial compression     eccentric compression     steel corrosion     calculation    

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Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 323-328 doi: 10.1007/s11709-008-0043-5

Abstract: Specimens subjected to biaxial compression-tension (C-T) and triaxial compression-compression-tension

Keywords： requirement     wet-screened concrete     compression-tension     maximum aggregate     principal    

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A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 1,   Pages 1-4 doi: 10.1007/s11465-012-0306-7

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Waves of Probability and the Problems of Torsion for Quantum Effect

OuYang Shoucheng,Li Zhilan,Yuan Dongsheng

Strategic Study of CAE 2005, Volume 7, Issue 6,   Pages 1-6

Abstract: a result of comprehensive interactions among intensity of potential field and particle density and torsion

Keywords： torsion (spin)     probability     quantum effect     nonlinear instability     curvature space    

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Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 463-467 doi: 10.1007/s11708-007-0068-0

Abstract: The effects of homogeneous charge compression ignition (HCCI) engine compression ratio on its combustion

Keywords： homogeneous     cylinder     combustion     compression     dimethyl    

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Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 409-419 doi: 10.1007/s11709-016-0358-6

Abstract: The findings were shown that the TriWP steel sections had better resistance against torsion in comparison

Keywords： corrugated web     i-beam     non uniform steel section     torsion resistance     torsion angle     triangular web profile    

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Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 432-439 doi: 10.1007/s11708-009-0050-9

Abstract: A detailed chemical dynamical mechanism of oxidation of n-heptane was implemented into kiva-3 code to study the ignition mechanism of a high-temperature, high-pressure, three-dimensional-space, transient turbulent, non-homogeneous, mono-component fuel in the engine. By testing the quantity of the heat released by the chemical reaction within the cylinder cell, the elementary reaction showing an obvious increase in the cell temperature was defined as ignition reaction and the corresponding cell as ignition position. The main pathway of the ignition reaction was studied by using the reverse deducing method. The result shows that the ignition in the engine can be divided into low-temperature ignition and high-temperature ignition, both of which follow the same rule in releasing heat, called the impulse heat releasing feature. Low-temperature ignition reaction, whose ignition reaction is c5h9o1-4=ch3cho+c3h5-a, follows the oxidation mechanism, while high-temperature ignition reaction, whose ignition reaction is c2h3o1-2=ch3co, follows the decomposition mechanism. No matter which ignition it is in, the chemical reaction that restrains the ignition reaction from lasting is the deoxidization reaction of alkylperoxy radicals.

Keywords： compression-ignition engine     ignition mechanism     elementary reaction     n-heptane    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsmelt flow process in a closed cavity becomes more complex because of the moving cavity boundary during compressionIn this study, a 3D simulation method was developed for injection-compression molding.method, arbitrary Lagrangian-Eulerian was introduced to model the moving-boundary flow problem in the compressionreveal that the fountain flow effect becomes significant when the cavity thickness increases during compression

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 691-706 doi: 10.1007/s11708-019-0621-3

Abstract: In theory, high compression ratio has the potential to improve the thermal efficiency and promote theHowever, the application of high compression ratio is substantially limited by the knock in practicalThe objective of this work is to comprehensively investigate the application of high compression ratioratio similar to CR10, which could eliminate the knock limits at a high compression ratio and high loadTo verify the advantages of the high compression ratio, the fuel economy and power performance of CR10

Keywords： high compression ratio     knock     Miller cycle     split injection     engine performance    

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A computational toolbox for molecular property prediction based on quantum mechanics and quantitativestructure-property relationship

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 152-167 doi: 10.1007/s11705-021-2060-z

Abstract: During these periods, one of the most important keys is the molecular property prediction models associatingIn this paper, a framework combining quantum mechanics and quantitative structure-property relationshipis established for fast molecular property predictions, such as activity coefficient, and so forth.which are stored in a database and further provided for the developments of quantitative structure-propertyThe whole framework has been carried out within a molecular property prediction toolbox.

Keywords： molecular property     quantum mechanics     quantitative structure-property relationship     heat of reaction    

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Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 70-78 doi: 10.1631/FITEE.1400136

Abstract: In this paper, we present a CAN message compression method to reduce the CAN frame length.By using an embedded test board, we show that 64-bit engine management system (EMS) CAN data compression

Keywords： Controller area network (CAN)     Electronic control units (ECUs)     Data compression     Signal rearrangement    

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Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 344-350 doi: 10.15302/J-FEM-2015059

Abstract: In addition, construction schedulers are frequently forced to incorporate aggressive schedule compressionAs already discussed by previous researchers, these schedule compression techniques have direct impactsResearchers have also pointed out that schedule compression will affect safety incidents such as Occupationaland project quality, and minimal research has been done to directly quantify the effect of schedule compressionresearch, we conducted a survey and statistical analysis to investigate the relationship between schedule compression

Keywords： construction safety     schedule compression     overtime     work shift     Hurdle model    

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Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 185-192 doi: 10.1007/s11708-017-0452-z

Abstract: Solar absorption-subcooled compression hybrid refrigeration system is a new type of efficient and economicalsimultaneously, the variation of working process as well as performance is complicated since the absorption and compression

Keywords： solar     absorption-subcooled     compression hybrid     dynamic simulation     performance analysis    

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Title Author Date Type Operation

Formation Process and Mechanical Deformation Behavior of a Novel Laser-Printed Compression-Induced Twisting-Compliant

Jie Gao, Dongdong Gu, Chenglong Ma, Donghua Dai, Lixia Xi, Kaijie Lin, Tong Gao, Jihong Zhu, Yuexin Du

Journal Article

Fatigue crack growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined torsion

Journal Article

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Journal Article

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Journal Article

A compound load simulator based on zero-torsion parallel mechanisms

Jingjun YU, Wei LI, Xu PEI, Shusheng BI, Guanghua ZONG

Journal Article

Waves of Probability and the Problems of Torsion for Quantum Effect

OuYang Shoucheng,Li Zhilan,Yuan Dongsheng

Journal Article

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Journal Article

Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Journal Article

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

A computational toolbox for molecular property prediction based on quantum mechanics and quantitativestructure-property relationship

Journal Article

Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Journal Article

Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Journal Article

Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Journal Article