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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

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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.providing 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

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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

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Research of the Damage Evolution Equation and Spallation Criterion

Cao Jiedong,Li Yongchi

Strategic Study of CAE 2006, Volume 8, Issue 1, Pages 40-45

Abstract: the experimental ones, the material parameters in the damage evolution equation and the spallation criterionresults and the experimental ones show that the new form of damage evolution equation and the spallation criterion

Keywords： damage evolution equation spallation criterion numerical simulation

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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

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The Model for Loan Portfolio With Safety-first Criterion

Tang Wansheng,Yan Weizhen,Ning Yufu

Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 137-141

Abstract:

This paper proposes the model for loan portfolio under probability criterion

Keywords： loan portfolio safety-first criterion random simulation genetic algorithm(GA) simultaneousperturbation

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The Strict Avalanche Criterion of Order k Spectral Properties of m-Valued Logical Functions

Guojinhui,LiShiqu

Strategic Study of CAE 2005, Volume 7, Issue 12, Pages 45-48

Abstract: In this paper, in residue class ring Z_m, the concept of the strict avalanche criterion ofand sufficient condition on a m-valued logical function is given, which fulfills the strict avalanche criterion

Keywords： m-valued logical function Chrestenson cyclic spectrum auto-correlation function the strict avalanche criterion

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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 samples

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

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A Weighted Block-matching Criterion for the Hardware Implementation of Motion Estimators

Zhang Xia,Zheng Nanning,Zhang Guanglie,Wu Yong,Wang Shaorui,Xu Weipu

Strategic Study of CAE 2002, Volume 4, Issue 1, Pages 47-53

Abstract: because of its low computing complication, easy realization and high call frequency of the block-matching criterionA new criterion called weighted minimized maximum error is proposed in this paper.This criterion can reduce the complexity of the motion estimator, decrease the area of the hardware andOn the other hand, the criterion is suitable to be applied to the recursive searching strategy which

Keywords： video processing motion compensation motion estimation block-matching criterion

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Deformation Rate Ratio Criterion (DRRC) and Its Verification in Maoshan Tunnel Excavation

Li Shihui,Song Jun

Strategic Study of CAE 2002, Volume 4, Issue 6, Pages 85-91

Abstract: Advance the basis for the hypothesis of deformation rate ratio criterion (DRRC) and the method for obtainingthe threshold of this criterion, and enumerate five typical cases for the application of this criterion

Keywords： open complex giant system cave-in accident deformation rate ratio criterion typical information method

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Modeling and analysis of magnetic dipoles in weak magnetic field

WANG Zhaoxia, ZHANG Weimin, LIU Hongguang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 222-225 doi: 10.1007/s11465-008-0028-z

Abstract: The shape and characteristics of the zero line (an important criterion for magnetic memory testing) of

Keywords： geomagnetic theory important criterion magnetic leakage normal component

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A pilot scale test of ozonization treatment of ethene wastewater for reuse

ZHONG Li, REN Wei, GUO Wenjing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2, Pages 191-195 doi: 10.1007/s11705-008-0028-x

Abstract: and pure oxygen can effectively remove COD of ethene wastewater to meet the industrial water reuse criterion

Keywords： different industrial oxygen generation criterion

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Effect of interface adhesion factor on the bearing capacity of strip footing placed on cohesive soil overlying rock mass

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6, Pages 1494-1503 doi: 10.1007/s11709-021-0768-y

Abstract: The failure of cohesive soil is modeled by using Mohr−Coulomb yield criterion, whereas Generalized Hoek−Brown yield criterion is utilized to model the rock mass at failure.

Keywords： bearing capacity soil-rock interface Hoek−Brown yield criterion plasticity limit analysis

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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 in notched composite plates using a macro mechanics approach. Using the presented method, a progressive failure is simulated based on a linear softening law prior to a catastrophic failure, and thereafter, sudden reduction methods are employed for modeling a progressive failure. This combination method significantly reduces the computational cost and is also capable of simultaneously predicting the first and last ply failures (LPFs) in composite plates. The proposed method is intended to predict the first ply failure (FPF), LPF, and dominant failure modes of carbon/epoxy and glass/epoxy notched composite plates. In addition, the effects of mechanical properties and different stacking sequences on the propagation of damage in notched composite plates were studied. The results of the presented method were compared with experimental data previously reported in the literature. By comparing the numerical and experimental data, it is revealed that the proposed method can accurately simulate the failure propagation in notched composite plates at a low computational cost.

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

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Risk analysis methods of the water resources system under uncertainty

Zeying GUI,Chenglong ZHANG,Mo Li,Ping GUO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3, Pages 205-215 doi: 10.15302/J-FASE-2015073

Abstract: The main characteristic of the water resources system (WRS) is its great complexity and uncertainty, which makes it highly desirable to carry out a risk analysis of the WRS. The natural environmental, social economic conditions as well as limitations of human cognitive ability are possible sources of the uncertainties that need to be taken into account in the risk analysis process. In this paper the inherent stochastic uncertainty and cognitive subjective uncertainty of the WRS are discussed first, from both objective and subjective perspectives. Then the quantitative characterization methods of risk analysis are introduced, including three criteria (reliability, resiliency and vulnerability) and five basic optimization models (the expected risk value model, conditional value at risk model, chance-constrained risk model, minimizing probability of risk events model, and the multi-objective optimization model). Finally, this paper focuses on the various methods of risk analysis under uncertainty, which are summarized as random, fuzzy and mixed methods. A more comprehensive risk analysis methodology for the WRS is proposed based on the comparison of the advantages, disadvantages and applicable conditions of these three methods. This paper provides a decision support of risk analysis for researchers, policy makers and stakeholders of the WRS.

Keywords： water resources system evaluation criterion optimization model risk analysis method uncertainty