Search Results - "Qing, Longbang"

Experimental method for determining the fracture toughness of concrete based on the modified two‐parameter model and DIC technique by Qing, Longbang, Cao, Guorui, Guan, Junfeng, Li, Shuguang

“…An experimental method, based on the modified two‐parameter model and digital image correlation technique, was proposed for determining the mixed mode fracture…”
Get full text

Investigation on crack extension resistance curve of aligned steel fiber‐reinforced cement‐based composites by Qing, Longbang, Zhang, Yuebo, Mu, Ru, Liu, Jiaping

“…Abstract In this study, an analytical method was proposed to predict the crack extension resistance curve ( K R curve) of aligned steel fiber‐reinforced…”
Get full text

Toughness enhancement and equivalent initial fracture toughness of cementitious composite reinforced with aligned steel fibres by Qing, Longbang, Cheng, Yuehua, Mu, Ru

“…Based on theoretical analysis and numerical simulation, the impact of steel fibres on the stress intensity factor (SIF) at the crack tip for cementitious…”
Get full text

Reinforcing Cementitious Composite Open-Hole Plate Subjected to Uniaxial Tension Using Full-Field Aligned Steel Fibers by Qing, Longbang, Bi, Mengdi, Rong, Hua, Zhao, Nan, Wu, Hangpeng, Cao, Guorui, Mu, Ru

“…AbstractOpening holes in construction structures is used often to allocate electrical or ventilating lines. However, it may result in stress concentration and…”
Get full text

Preparation and properties of self-healing cementitious composites using aligned glass tubes by Zhang, Depeng, Wang, Xiaowei, Mu, Ru, Qing, Longbang, Zhou, Jian

“…Self-healing concrete is a new material with the ability to autogenously heal cracks. Self-healing by encapsulated healing agents has been widely studied,…”
Get full text

Uniaxial tensile behavior of aligned steel fibre reinforced cementitious composites by Qing, Longbang, Yu, Kelai, Mu, Ru, Forth, John P.

“…By applying an external uniform magnetic field to a fresh cement mixture during casting, an aligned steel fibre reinforced cementitious composites (ASFRC) was…”
Get full text

Investigation of mixed-mode fracture of aligned steel fibre reinforced cementitious composites by Qing, Longbang, Li, Yang, Wang, Xiaoting, Yu, Kelai, Mu, Ru

“…Mixed-mode fracture experiments were conducted on aligned steel fibre reinforced cementitious composite (ASFRC) and ordinary steel fibre reinforced…”
Get full text

Investigation on Fracture Behavior of Cementitious Composites Reinforced with Aligned Hooked-End Steel Fibers by Khan, Sujjaid, Qing, Longbang, Ahmad, Iftikhar, Mu, Ru, Bi, Mengdi

“…Aligning steel fibers is an effective way to improve the mechanical properties of steel fiber cementitious composites (SFRC). In this study, the magnetic field…”
Get full text

Study of Concrete Strength and Pore Structure Model Based on Grey Relation Entropy by Zhang, Min, Yao, Xianhua, Guan, Junfeng, Li, Lielie, Wang, Juan, Qing, Longbang

“…The Grey Relation Entropy (GRE) theory is used to analyze the sensitive pore size that affects the compressive strength of concrete. The relationship between…”
Get full text

Size effect on double-K fracture parameters of concrete based on fracture extreme theory by Qing, Longbang, Su, Yimeng, Dong, Mowen, Cheng, Yuehua, Li, Yang

“…Based on fracture extreme theory (FET), the size effect on initial fracture toughness K I ini and unstable fracture toughness K I un of concrete for…”
Get full text

Correction to: Uniaxial tensile behavior of aligned steel fibre reinforced cementitious composites by Qing, Longbang, Yu, Kelai, Mu, Ru, Forth, John P.

“…The article “Uniaxial tensile behavior of aligned steel fibre reinforced cementitious composites”, written by “Longbang Qing, Kelai Yu, Ru Mu, John P. Forth”,…”
Get full text

Performance of Self-Healing Cementitious Composites Using Aligned Tubular Healing Fiber by Mu, Ru, Soro, Dogniman Landry, Wang, Xiaowei, Qing, Longbang, Cao, Guorui, Mei, Shaolin, Liu, Yongshuai

“…From the perspective of improving the self-healing method in construction, a tubular healing fiber was adopted as a container to improve the encapsulation…”
Get full text

Brief communication: Full-field deformation measurement for uniaxial compression of sea ice using the digital image correlation method by Wang, Anliang, Wei, Zhijun, Chen, Xiaodong, Ji, Shunying, Liu, Yu, Qing, Longbang

“…The study of the mechanical properties of sea ice benefits the parameterization of sea-ice numerical models and the optimization of engineering design…”
Get full text

Stochastic evolution characteristics of fracture process zone in concrete by Qing, Longbang, Su, Yimeng

“…•The stochastic characteristics of the fracture process zone (FPZ) in concrete were studied.•The proposed method was applied to the calculation of dam, wet…”
Get full text

The fracture extreme theory for determining the effective fracture toughness and tensile strength of concrete by Qing, Longbang, Cheng, Yuehua

“…•A fracture extreme theory (FET) was developed to determine KICe and ft of concrete.•Only the experimental peak load of one specimen in fracture test is…”
Get full text

Aligning steel fibers in cement mortar using electro-magnetic field by Mu, Ru, Li, Hui, Qing, Longbang, Lin, Jianjun, Zhao, Quanming

“…•A detailed approach of aligning steel fibers in cement mortar using magnetic field was presented.•Necessary magnetic induction of magnetic field and…”
Get full text

In-plane shear behavior of brick masonry walls strengthened with basalt textile-reinforced concrete by Yang, Peijian, Tian, Wenling, Qing, Longbang

Get full text

Determination of equivalent fracture toughness and tensile strength of steel fibre reinforced cementitious composite based on boundary effect model by Li, Yang, Qing, Longbang, Guan, Junfeng

“…•A theoretical method for determining KIC and ft simultaneously of SFRC was proposed.•The orientation of steel fiber was considered by introducing a discrete…”
Get full text

Research progress on aligned fiber reinforced cement-based composites by Qing, Longbang, Sun, Honglei, Zhang, Yuebo, Mu, Ru, Bi, Mengdi

“…•The fiber alignment methods in cement-based materials are comprehensively introduced.•The detecting methods for fibers alignment are described.•The mechanical…”
Get full text

Generalized implicit solution of ITZ percolation threshold and its effect on the diffusivity of concrete: Influence of aggregate shape- and size-polydispersities by Li, Mingqi, Chen, Huisu, Qing, Longbang, Lin, Jianjun

“…•A generalized implicit solution is developed to capture the ITZ percolation threshold.•ITZ percolation threshold of concretes including poly-shaped aggregates…”
Get full text