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Three-Dimensional Mesoscopic Investigation on the Impact of Specimen Geometry and Bearing Strip Size on the Splitting-Tensile Properties of Coral Aggregate Concrete Article

Zhangyu Wu, Jinhua Zhang, Hongfa Yu, Qin Fang, Haiyan Ma, Li Chen

Engineering 2022, Volume 17, Issue 10,   Pages 110-122 doi: 10.1016/j.eng.2021.02.024

Abstract:

The use of coral aggregate concrete (CAC) as a novel construction material has attracted significant attention for the construction of reef engineering structures. To investigate the static splitting-tensile behaviors of CAC under the influence of two factors, namely specimen geometry and bearing strip size, a three-dimensional (3D) mesoscale modeling approach with consideration for aggregate randomness in shape and distribution was adopted in this study. We established 12 different specimen models with two specimen shapes (i.e., a cube with an edge length of 150 mm and a cylinder with dimensions of ϕ150 mm × 300 mm) and six strip widths (i.e., 6, 9, 12, 15, 18, and 20 mm) for calculation. The effects of specimen geometry and strip width on the splitting-tensile properties of CAC, such as failure processes, final failure patterns, and splitting-tensile strength (fst), are analyzed and discussed systematically. The results indicate the high reliability of the developed mesoscale modeling approach and reveal the optimal computational parameters for simulating and predicting the splitting-tensile properties of CAC. The fst values of CAC are associated with both the specimen geometry and width of the bearing strip. The fst values of the cube model are slightly higher than those of the cylinder model for the same bearing strip size, representing geometry effects that can be explained by differences in fracture area. Additionally, the fst value of CAC gradually increases with the relative width of the bearing strip ranging from 0.04 to 0.13. Based on the elastic solution theory, the variation area of CAC fst values with the relative width of the bearing strip was determined preliminarily, which has great significance for studying the tensile performance of CAC.

Keywords： Coral aggregate concrete     3D mesoscopic modelling     Split-tension test     Tensile strength     Specimen geometry    

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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-tensionTest data indicate that both the deformation and strength of the mass concrete specimens are lower thanTest results show that the wet-screened effect and size effect of the specimens under complex stress

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

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Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 210-216 doi: 10.1007/s11709-012-0165-7

Abstract: A uniaxial tension test is commonly used to determine the mechanical properties of steel, but it hasThe test was developed as a consensus solution by producers, fabricators, designers and code writers,

Keywords： steel     stress-strain characteristics     tension test     strain design     actual behavior     improved design codes    

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Enhanced solution representations for vehicle routing problems with split deliveries

Frontiers of Engineering Management   Pages 483-498 doi: 10.1007/s42524-023-0259-z

Abstract: In this study, we investigate a forest-based solution representation for split delivery vehicle routingThe new solution representation fully reflects the nature of split delivery, and can help reduce the

Keywords： vehicle routing     multidepot     time windows     tabu search     split delivery    

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Measurement of dynamic fracture toughness and failure behavior for explosive mock materials

Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 292-295 doi: 10.1007/s11465-011-0237-8

Abstract:

In this work, a pre-cracked semi-circular shaped explosive simulant was loaded using a split Hopkinson

Keywords： digital image correlation     polymer bonded explosive simulant     split Hopkinson pressure bar (SHPB)     semicircularbending test     deformation     fracture toughness    

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Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 950-964 doi: 10.1007/s11709-019-0529-3

Abstract: Such cracks result from limited tension strength of the soil.A tension cut-off in Mohr-Coulomb shear strength can represent this limited strength.Presented is an extension of variational analysis of slope stability with a tension crack consideringThe results indicate that the presence of the tension crack has significant effects on the seismic stabilityConsidering soil tension strength in seismic slope analysis may lead to overestimation on the stability

Keywords： slope stability     tension     crack     limit equilibrium     seismic effect    

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performance with high compression ratio based on knock suppression using Miller cycle with boost pressure and split

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: application of high compression ratio on a gasoline engine based on the Miller cycle with boost pressure and splitreduced fuel consumption of CR12 at full load could be achieved by using the strong Miller cycle and split

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

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Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 535-567 doi: 10.1007/s11708-017-0463-9

Abstract: Surface tension plays a core role in dominating various surface and interface phenomena.For liquid metals with high melting temperature, a profound understanding of the behaviors of surface tensionIn order to promote the research of surface tension of RTLM, this paper is dedicated to present an overviewon the roles and mechanisms of surface tension of liquid metal and summarize the latest progresses onMoreover, the unique phenomena of RTLM surface tension issues such as surface tension driven self-actuation

Keywords： surface tension     liquid metal     soft machine     printed electronics     electrowetting     self-actuation    

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Recent development in low-constraint fracture toughness testing for structural integrity assessment of pipelines

Jidong KANG, James A. GIANETTO, William R. TYSON

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 546-553 doi: 10.1007/s11465-018-0501-2

Abstract: Such a test provides high constraint and therefore conservative fracture toughness results.recent developments in low-constraint fracture toughness testing, specifically using single-edge-notched tensionWe focus our review on the test procedure development and automation, round-robin test results and some

Keywords： fracture toughness     constraint effect     single-edge-notched tension test     pipeline     structural integrity assessment    

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Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11709-009-0041-2

Abstract: points of the crack extension resistance curve is closely related to the characteristic point on used tension

Keywords： concrete     fracture process zone     crack extension GR resistance     tension softening curve    

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Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 241-248 doi: 10.1007/s11465-011-0219-x

Abstract: new calculation method that can calculate the load distribution on pipe threaded connections under tensionThe model offers a new way to calculate the loads carried on the thread teeth under tension load.

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Split-order consolidation optimization for online supermarkets: Process analysis and optimization models

Frontiers of Engineering Management   Pages 499-516 doi: 10.1007/s42524-022-0221-5

Abstract: large amounts of daily orders with potentially multiple items, diverse delivery times, and a high order-splitAccordingly, research on split-order consolidation fulfilment is critical for the advancement of theThis paper first analyzes the characteristics and the challenges associated with the split-order consolidationproblem that online supermarket is confronting and summarizes the new operational process of split-ordercorresponding solution algorithm is presented to solve the questions of where and when to consolidate the split

Keywords： online supermarkets     split-order consolidation     time–space network     genetic algorithm    

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Comparing the effects of Bassini versus tension-free hernioplasty: 3 years’ follow-up

Yulong SHI, Zhongxue SU, Leping LI, Hongjun LIU, Changqing JING,

Frontiers of Medicine 2010, Volume 4, Issue 4,   Pages 463-468 doi: 10.1007/s11684-010-0050-5

Abstract: In order to compare the effects of Bassini and tension-free mesh hernioplasty, a total of 552 patientsour hospital were randomly divided into the following two groups: the Bassini group (=269) and the tension-freeThe recurrence rate in the Bassini group was 8.9% (24/269), significantly higher than that in the tension-freeIn addition, the recurrence rates in the Bassini and tension-free groups before 2004 were 12.6% and 5.6%The average hospital stay in the Bassini group was longer than that in the tension-free repair group

Keywords： hernioplasty     Bassini repair     tension-free repair     complication    

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High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 487-503 doi: 10.1007/s11465-021-0635-5

Abstract: enhances the anti-disturbance performance of a gear-drive gyro-stabilized platform with a floating gear tensionThe tension device can provide a self-adjustable preload to eliminate the gap in the meshing process.However, the weaker gear support stiffness and more complex meshing friction are also induced by the tensionalgorithm is demonstrated by comparative experiments on a gear-drive pointing system with a floating gear tension

Keywords： inertially stabilized platform     floating gear tension device     nonlinear friction     disturbance compensation    

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Partial liver transplantation

Nianqiao GONG, Xiaoping CHEN

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 1-7 doi: 10.1007/s11684-010-0105-7

Abstract:

Partial liver transplantation, including reduced-size liver transplantation, split liver transplantationSplit liver transplantation provides chances to two or even more recipients when only one liver graft

Keywords： partial liver transplantation     reduced-size liver transplantation     split liver transplantation     living donor    

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Title Author Date Type Operation

Three-Dimensional Mesoscopic Investigation on the Impact of Specimen Geometry and Bearing Strip Size on the Splitting-Tensile Properties of Coral Aggregate Concrete

Zhangyu Wu, Jinhua Zhang, Hongfa Yu, Qin Fang, Haiyan Ma, Li Chen

Journal Article

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

WANG Huailiang, SONG Yupu

Journal Article

Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Journal Article

Enhanced solution representations for vehicle routing problems with split deliveries

Journal Article

Measurement of dynamic fracture toughness and failure behavior for explosive mock materials

Pengwan CHEN, Zhongbin ZHOU, Shaopeng MA, Qinwei MA, Fenglei HUANG

Journal Article

Seismic stability of earth slopes with tension crack

Yundong ZHOU, Fei ZHANG, Jingquan Wang, Yufeng GAO, Guangyu DAI

Journal Article

performance with high compression ratio based on knock suppression using Miller cycle with boost pressure and split

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

Surface tension of liquid metal: role, mechanism and application

Xi ZHAO, Shuo XU, Jing LIU

Journal Article

Recent development in low-constraint fracture toughness testing for structural integrity assessment of pipelines

Jidong KANG, James A. GIANETTO, William R. TYSON

Journal Article

Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Journal Article

Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Split-order consolidation optimization for online supermarkets: Process analysis and optimization models

Journal Article

Comparing the effects of Bassini versus tension-free hernioplasty: 3 years’ follow-up

Yulong SHI, Zhongxue SU, Leping LI, Hongjun LIU, Changqing JING,

Journal Article

High-precision gyro-stabilized control of a gear-driven platform with a floating gear tension device

Journal Article

Partial liver transplantation

Nianqiao GONG, Xiaoping CHEN

Journal Article