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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    

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    

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

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0932-7

Abstract: In this study, experimental and numerical investigations are conducted to analyze the dynamic behaviorof an SFT with different mooring styles under local cable failure.failure (i.e., progressive failure) via experiments and numerical simulation, respectively.The dynamic response of an SFT with different mooring styles under cable failure is comprehensively investigatedMoreover, 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    

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: Results show that the method of combined DIC and SHPB is effective to study the dynamic deformation and

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

Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 253-260 doi: 10.1007/s11709-008-0042-6

Abstract: It was shown that the failure of the granite cylinder was typical tensile splitting failure mode by suddenTo quantitatively analyze the failure phenomena, the numerical calculation based on a dynamic interacting

Keywords: numerical calculation     coefficient     cylinder     splitting parallel     strain-dependency    

Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 15-37 doi: 10.1007/s11709-018-0465-7

Abstract: In this study, the air blast response of the concrete dams including dam-reservoir interaction and acoustic cavitation in the reservoir is investigated. The finite element (FE) developed code are used to build three-dimensional (3D) finite element models of concrete dams. A fully coupled Euler-Lagrange formulation has been adopted herein. A previous developed model including the strain rate effects is employed to model the concrete material behavior subjected to blast loading. In addition, a one-fluid cavitating model is employed for the simulation of acoustic cavitation in the fluid domain. A parametric study is conducted to evaluate the effects of the air blast loading on the response of concrete dam systems. Hence, the analyses are performed for different heights of dam and different values of the charge distance from the charge center. Numerical results revealed that 1) concrete arch dams are more vulnerable to air blast loading than concrete gravity dams; 2) reservoir has mitigation effect on the response of concrete dams; 3) acoustic cavitation intensify crest displacement of concrete dams.

Keywords: air blast loading     concrete dams     finite element     dam-reservoir interaction     cavitation     concrete damage model    

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    

Seismic progressive-failure analysis of tall steel structures under beam-removal scenarios

Behrouz BEHNAM, Fahimeh SHOJAEI, Hamid Reza RONAGH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 904-917 doi: 10.1007/s11709-019-0525-7

Abstract: Investigating progressive collapse of tall structures under beam removal scenarios after earthquake is a complex subject because the earthquake damage acts as an initial condition for the subsequent scenario. An investigation is performed here on a 10 story steel moment resisting structure designed to meet the life safety level of performance when different beam removal scenarios after earthquake are considered. To this end, the structure is first subjected to the design earthquake simulated by Tabas earthquake acceleration. The beam removal scenarios are then considered at different locations assuming that both ends connections of the beam to columns are simultaneously detached from the columns; thus the removed beam falls on the underneath floor with an impact. This imposes considerable loads to the structure leading to a progressive collapse in all the scenarios considered. The results also show that the upper stories are much more vulnerable under such scenarios than the lower stories. Hence, more attention shall be paid to the beam-to-column connections of the upper stories during the process of design and construction.

Keywords: progressive collapse     tall steel moment-resisting frames     non-linear dynamic analysis     beam-removal scenario    

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    

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    

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    

Title Author Date Type Operation

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

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

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

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

Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Journal Article

Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

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

Seismic progressive-failure analysis of tall steel structures under beam-removal scenarios

Behrouz BEHNAM, Fahimeh SHOJAEI, Hamid Reza RONAGH

Journal Article

Integrated management of cardiac failure: the cardiac failure clinic

Daniel LOISANCE

Journal Article

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

Xian Xuefu,Xu Jiang,Wang Hongtu

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