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Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 623-642 doi: 10.1007/s11709-021-0726-8

Abstract: In this study, gradual and sudden reduction methods were combined to simulate a progressive failure inUsing the presented method, a progressive failure is simulated based on a linear softening law priorto a catastrophic failure, and thereafter, sudden reduction methods are employed for modeling a progressivefailure.The proposed method is intended to predict the first ply failure (FPF), LPF, and dominant failure modes

Keywords: progressive failure     notched composite plate     Hashin failure criterion     macro mechanics approach     finite    

Application of the expanded distinct element method for the study of crack growth in rock-like materials under uniaxial compression

Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 121-131 doi: 10.1007/s11709-012-0151-0

Abstract: The tensile-shear failure criterion and the Griffith failure criterion were implanted into the EDEM toSimulation results indicated that the EDEM model with the tensile-shear failure criterion has strongThe EDEM model with the Griffith failure criterion can only simulate the splitting failure of samplesResearch results demonstrated that sample failure primarily resulted from the growth of single cracksAdditionally, the inclination angle of the pre-existing crack clearly influences the final failure pattern

Keywords: expanded distinct element method (EDEM)     crack growth     rock-like material     tensile-shear failure criterion     Griffith failure criterion     mechanical and failure behavior    

LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 871-881 doi: 10.1007/s11709-022-0863-8

Abstract: The failure criteria of practical soil mass are very complex, and have significant influence on the safetyThe Coulomb strength criterion and the power-law failure criterion are classically simplified.criterion is better than those of the linear Coulomb criterion and nonlinear power-law criterion.Based on the proposed LSSVM approach to determine the failure criterion, the limit equilibrium methodcriterion-based method and the power-law failure criterion-based method are about 12% and 7%, respectively

Keywords: slope stability     safety factor     failure criterion     least square support vector machine    

Shock Tensile Behaviour of Tungsten Alloy and Presentations to Its Constitutive Models and Fracture Criterion

Zhang Baoping,Ding Chuntong,Liu Baohua,Chen Xuelian

Strategic Study of CAE 2003, Volume 5, Issue 3,   Pages 44-50

Abstract: and the plastic work W1 at the maximum load-onset of instability was derived, so that the criterion

Keywords: constitutive model for dynamic tension     tungsten alloy     criterion to dynamic failure    

Deformation control criterion of shield tunnel under lateral relaxation of soft soil

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 780-795 doi: 10.1007/s11709-023-0944-3

Abstract: Subsequently, a deformation control criterion is established.

Keywords: shield tunnel     lateral relaxation of soil     deformation control criterion of segment structure     model    

Study on anti crack design method for laminating crack at bottom slab in closure segment

Lin Haifeng,Zhang Dongdong and Zhao Qilin

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 106-112

Abstract: segment for prestressed concrete continuous box girder bridges constructed by hanging basket, different failureIt indicates from theory that the failure criteria under biaxial stress is more applicable to anti-crackdesign than the maximum tensile stress criterion for closure segment of box girder bridges.slab in closure segment are obtained; the stress state and security of bottom slab under different failure

Keywords: bridge engineering     bottom slab     finite element method     failure criterion     biaxial stress    

Predication of Potential Danger Region (Zone) of Coal and Gas Outburst

Xian Xuefu,Xu Jiang,Wang Hongtu

Strategic Study of CAE 2001, Volume 3, Issue 2,   Pages 39-46

Abstract: of the coal-rock composite samples and coal simples containing gas under complex stress state, the failurecriterion, on the basis of the modification and consummation of the Dracker - Prager´s theory,

Keywords: dynamical phenomenon in mine     coal and gas outburst     potential danger zone     failure criterion     coefficient    

Integrated management of cardiac failure: the cardiac failure clinic

Daniel LOISANCE

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 20-25 doi: 10.1007/s11684-011-0106-1

Abstract:

The prevalence of the risk factors and the risk of cardiac failure are both increasing in China.The wide range of clinical presentations of cardiac failure (acute or chronic) and of therapeutic approaches

Keywords: cardiac failure     cardiac transplantation     mechanical circulatory support    

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.Accuracy predicting surface and internal failure in plastic deformation process affects on the technologyproviding the experimental values of the critical values at fracture, and 11 widely used ductile fracture criterion

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

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-horizonThe 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    

Experimental study of face passive failure features of a shallow shield tunnel in coastal backfill sand

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 2,   Pages 252-271 doi: 10.1007/s11709-024-1059-1

Abstract: Face passive failure can severely damage existing structures and underground utilities during shallowIn this work, a series of laboratory model tests were developed and conducted to investigate such failureSupport pressures, the evolution of failure processes, the failure modes, and the distribution of velocityarch, which was determined by the outcropping shear failure.i>D = 0.8, 1, and 1.3, in which the mode was divided into lower and upper failure zones.

Keywords: tunnel face stability     passive failure     model test     support pressure     failure mode    

Unified method for typical gear failure modeling and stiffness calculation based on the matrix equation

Frontiers of Mechanical Engineering 2024, Volume 19, Issue 3, doi: 10.1007/s11465-024-0794-2

Abstract: The failure types in gear systems vary, with typical ones mainly including pitting, cracking, wear, andDifferent modeling and stiffness calculation methods have been developed for various gear failure typesA unified method for typical gear failure modeling and stiffness calculation is introduced in this studyThe values and positions of the microelements in the tooth failure model matrix have the same physicalmeaning as the parameter variables in the potential energy method (PEM), so the matrix-based failure

Keywords: gears     matrix equation     failure modeling     TVMS calculation     unified method    

Overview on acute-on-chronic liver failure

Jing Zhang,Shan Gao,Zhongping Duan,Ke-Qin Hu

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 1-17 doi: 10.1007/s11684-016-0439-x

Abstract:

Liver failure (LF) is defined as severe dysfunction in hepatic synthesis, detoxification, and metabolism

Keywords: liver failure     chronic liver failure     acute-on-chronic liver failure     diagnosis     prognosis     treatment    

Dynamic performance of submerged floating tunnel with different mooring styles subjected to anchor cable failure

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 10,   Pages 1443-1464 doi: 10.1007/s11709-023-0932-7

Abstract: is high, which can result in the progressive failure of the entire structure.A custom-designed cable failure device and the birth-and-death element method are used to simulate cablefailure (i.e., progressive failure) via experiments and numerical simulation, respectively.A physical-scale segmental model of an SFT with different mooring styles under anchor cable failure isMoreover, the progressive failure of the SFT under cable failure is investigated via a segment model

Keywords: dynamic behaviors     submerged floating tunnel     cable failure     mooring style     progressive failure    

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 7,   Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: This study focuses on the bending failure performance of a shield tunnel segment.A full-scale test was conducted to investigate deformation and failure characteristics.During the loading, the bending failure process can be divided into four stages: the elastic stage, workingstage with cracks, failure stage, and ultimate stage.The characteristic loads between contiguous stages are the cracking, failure, and ultimate loads.

Keywords: shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

Title Author Date Type Operation

Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Journal Article

Application of the expanded distinct element method for the study of crack growth in rock-like materials under uniaxial compression

Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO

Journal Article

LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

Journal Article

Shock Tensile Behaviour of Tungsten Alloy and Presentations to Its Constitutive Models and Fracture Criterion

Zhang Baoping,Ding Chuntong,Liu Baohua,Chen Xuelian

Journal Article

Deformation control criterion of shield tunnel under lateral relaxation of soft soil

Journal Article

Study on anti crack design method for laminating crack at bottom slab in closure segment

Lin Haifeng,Zhang Dongdong and Zhao Qilin

Journal Article

Predication of Potential Danger Region (Zone) of Coal and Gas Outburst

Xian Xuefu,Xu Jiang,Wang Hongtu

Journal Article

Integrated management of cardiac failure: the cardiac failure clinic

Daniel LOISANCE

Journal Article

Experimental research on ductile fracture criterion in metal forming

Song YU, Weiming FENG

Journal Article

A new fracture criterion for peridynamic and dual-horizon peridynamics

Jinhai ZHAO, Hesheng TANG, Songtao XUE

Journal Article

Experimental study of face passive failure features of a shallow shield tunnel in coastal backfill sand

Journal Article

Unified method for typical gear failure modeling and stiffness calculation based on the matrix equation

Journal Article

Overview on acute-on-chronic liver failure

Jing Zhang,Shan Gao,Zhongping Duan,Ke-Qin Hu

Journal Article

Dynamic performance of submerged floating tunnel with different mooring styles subjected to anchor cable failure

Journal Article

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Journal Article