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Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 411-418 doi: 10.1007/s11709-013-0228-4

Abstract: results of an experimental investigation that evaluates effect of fly ash replacement level on the fractureenergy of concrete.This experimental program consisted of 32 fracture beams to study the fracture behavior of concrete.The experimental fracture energies were compared with the fracture energy provisions of different designenergy.

Keywords: concrete     fracture energy     fly ash    

Study on Cumulalive Energy Effect in Directional Fracture Controlled Blasting in Rock

Luo Yong,Shen Zhaowu

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 78-82

Abstract: problems of stone exploitation, the mechanism of crack initiation and its expansion of directional fractureeffect, mechanics of explosive and rock fracture mechanics, then the blasting parameters were designedThe experimental results show that the energy from blasting can be directionally concentrated by thecumulative energy jet.Model test and field test suggest that the directional fracture controlled blasting with linear cavity

Keywords: cumulative energy effect     directional fracture controlled blasting     model test     liner     fracture    

Experimental investigations of internal energy dissipation during fracture of fiber-reinforced ultra-high-performance

Eric N. LANDIS, Roman KRAVCHUK, Dmitry LOSHKOV

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 190-200 doi: 10.1007/s11709-018-0487-1

Abstract: Split-cylinder fracture of fiber-reinforced ultra-high-performance concrete (UHPC) was examined usingCumulative AE energy was also affected commensurately.Damage was quantified in terms of internal energy dissipation due to both matrix cracking and fiber pulloutThe results showed that fiber pullout was the dominant energy dissipation mechanism; however, the sumof the internal energy dissipation measured amounted to only 60% of the total energy dissipated by the

Keywords: ultra-high-performance concrete     concrete fracture     X-ray computed tomography     acoustic emission    

A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 629-641 doi: 10.1007/s11709-017-0447-1

Abstract: A new fracture criterion based on the crack opening displacement for peridynamic (PD) and dual-horizondeformation of the PD bond between the particles reaches the critical crack tip opening displacement of the fractureA new damage rule similar to the local damage rule in conventional PD is introduced to simulate fractureThe performance of the new fracture criterion is demonstrated by four examples, i.e. a bilateral crack

Keywords: Castigliano’s theorem     breaking energy     critical extension     XFEM     COD     PD-COD    

Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Frontiers of Medicine doi: 10.1007/s11684-023-1023-9

Abstract: but the association of early-life undernutrition combined with adulthood obesity patterns with low-energyfracture remains unknown.Low-energy fracture was defined as fracture occurring after the age of 40 typically caused by falls fromfamine exposure interacts with adulthood general obesity and significantly increases the risk of low-energyfracture later in life in women.

Keywords: famine     obesity     body mass index     waist-to-hip ratio     low-energy fracture    

Tests on impact effect of partial fracture at steel frame connections

CHEN Yiyi, BIAN Ruoning

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 295-301 doi: 10.1007/s11709-008-0049-z

Abstract: Impact effect of sudden fracture at steel frame connections under severe earthquake or other extremeThe relation of impulse caused by structural fracture to the release of inner force at the cracked locationIt is also revealed that the instant fracture of structural connection is characterized by progressiveand partial fracture.Numerical evaluation of the impact effect of connection fracture is carried out.

Keywords: structural fracture     natural     fracture     progressive     high-frequency    

Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 586-598 doi: 10.1007/s11709-020-0573-z

Abstract: This paper presents a review of fracture modeling of concrete.Based on comprehensive literature review, there are two main approaches considered to-date of concrete fractureThe purpose of this review is to provide insight comparison from different techniques in modeling of fractureIn the first section, an overview of fracture modeling in general is highlighted.

Keywords: concrete fracture     macroscopic     micromechanical     heterogeneity    

Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1337-1346 doi: 10.1007/s11709-021-0781-1

Abstract: We present a three-dimensional (3D) numerical model to investigate complex fracture behavior using cohesivepre-inserted cohesive elements are also applied into the initial meshes of solid elements to account for fractureThe proposed model provides an effective tool for predicting the complex fracture response of capsule-based

Keywords: 3D fracture     self-healing concrete     spherical     cohesive elements     heterogeneous    

Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 288-293 doi: 10.1007/s11709-018-0480-8

Abstract: Generally, shearing fracture model occurs in both the tests.Shearing fracture angle is smaller than 45° under uniaxial compression and greater than 45° under uniaxialof material strength under uniaxial compression and tension is developed by correlating the shearing fracturerelation is quantitatively illustrated by a function for analyzing the material strength from shear fracture

Keywords: strength     fracture     mechanics    

A dimensional analysis on asphalt binder fracture and fatigue cracking

Qian ZHAO, Zhoujing YE

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 201-206 doi: 10.1007/s11709-017-0402-1

Abstract: Fracture and fatigue cracking in asphalt binder are two of most serious problems for pavement engineersconsists both of dimensional analysis using Buckingham Theorem and -integral analysis based on classic fracturemechanics, to evaluate the fracture and fatigue on asphalt binder.is discovered that the dimensional analysis could provide a new perspective to analyze the asphalt fracture

Keywords: Dimensional analysis     asphalt     fracture     fatigue cracking    

Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 308-311 doi: 10.1007/s11465-011-0233-z

Abstract:

Ductile fracture criterion is key limitation parameter in material forming.shearing test on 45# steel are utilized for providing the experimental values of the critical values at fracture, and 11 widely used ductile fracture criterion are selected to simulate the physical experiments andtheir relative accuracy for predicting and quantifying fracture initiation sites are investigated.triaxiality can be estimated successively using both Normalized Cockcroft-latham and the Brozzo ductile fracture

Keywords: ductile fracture criteria     metal forming process     material experiment     stress triaxiality    

Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 296-300 doi: 10.1007/s11465-011-0236-9

Abstract: The analytical solutions of the field intensity factors and the energy release rate are presented inof geometrical parameters, crack permeability and combined mechanical and electric loadings on the energy

Keywords: piezoelectric materials     elliptical hole     semi-permeable crack     energy release rate     analytic solution    

Hybrid deep learning model for risk prediction of fracture in patients with diabetes and osteoporosis

Frontiers of Medicine 2022, Volume 16, Issue 3,   Pages 496-506 doi: 10.1007/s11684-021-0828-7

Abstract: The fracture risk of patients with diabetes is higher than those of patients without diabetes due toIn addition, the fracture risk of patients with diabetes and osteoporosis has not been further studiedIn this paper, a hybrid model combining XGBoost with deep neural network is used to predict the fracturepatients with diabetes and osteoporosis, and investigate the effect of patients’ physiological factors on fractureMoreover, the top 18 influencing factors of fracture risks of patients with diabetes are determined.

Keywords: XGBoost     deep neural network     healthcare     risk prediction    

A concise review about fracture assessments of brittle solids with V-notches

Hsien-Yang YEH, Bin YANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 478-485 doi: 10.1007/s11709-019-0520-z

Abstract:

A concise review of recent studies about the fracture assessments of elastic brittle solid materialsFracture criteria such as strain energy density, J-integral, theory of critical distance are used.

Keywords: fracture     assessment     brittle solids     V-notches     review    

Mechanical properties and impact resistance of concrete composites with hybrid steel fibers

Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 615-623 doi: 10.1007/s11709-022-0828-y

Abstract: In addition to the fracture energy and impact strength, two important indicators of ballistic performance

Keywords: projectile impact     depth of penetration     fracture energy     crater diameter     UHPFRC    

Title Author Date Type Operation

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Journal Article

Study on Cumulalive Energy Effect in Directional Fracture Controlled Blasting in Rock

Luo Yong,Shen Zhaowu

Journal Article

Experimental investigations of internal energy dissipation during fracture of fiber-reinforced ultra-high-performance

Eric N. LANDIS, Roman KRAVCHUK, Dmitry LOSHKOV

Journal Article

A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Journal Article

Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Journal Article

Tests on impact effect of partial fracture at steel frame connections

CHEN Yiyi, BIAN Ruoning

Journal Article

Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Journal Article

Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

Journal Article

Evaluating the material strength from fracture angle under uniaxial loading

Jitang FAN

Journal Article

A dimensional analysis on asphalt binder fracture and fatigue cracking

Qian ZHAO, Zhoujing YE

Journal Article

Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Journal Article

Fracture behavior of two non-symmetrical collinear cracks emanating from an elliptical hole in a piezoelectric

Junhong GUO, Zixing LU

Journal Article

Hybrid deep learning model for risk prediction of fracture in patients with diabetes and osteoporosis

Journal Article

A concise review about fracture assessments of brittle solids with V-notches

Hsien-Yang YEH, Bin YANG

Journal Article

Mechanical properties and impact resistance of concrete composites with hybrid steel fibers

Fatih ÖZALP; Halit Dilşad YILMAZ; Burcu AKCAY

Journal Article