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Investigation on modeling parameters of concrete beams reinforced with basalt FRP bars

Jordan CARTER, Aikaterini S. GENIKOMSOU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1520-1530 doi: 10.1007/s11709-019-0580-0

Abstract: In the FEA the behavior of concrete is simulated using the “Concrete-Damaged Plasticity” model offeredThe research presented here presents a calibrated model for nonlinear FEA of BFRP concrete beams to predictThe calibration process showed that the concrete model should be regularized using a mesh-dependent characteristic

Keywords： basalt Fiber-reinforced polymer bars     reinforced concrete beams     finite element analysis     damaged plasticitymodel     design codes    

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Truss-arch model for shear strength of seismic-damaged SRC frame columns strengthened with CFRP sheets

Sheng PENG, Chengxiang XU, Xiaoqiang LIU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1324-1337 doi: 10.1007/s11709-019-0557-z

Abstract: strength of SRC frame columns strengthened with CFRP sheets, experimental observations on eight seismic-damagedcontributions of strengthening material and transverse reinforcement to shear strength in the truss modelare considered, based on the truss-arch model.Results indicate that the proposed whole analysis model can improve the accuracy of shear strength predictionsof shear seismic-damaged SRC frame columns reinforced with CFRP sheets.

Keywords： carbon fiber reinforced polymer material     steel reinforced concrete frame column     seismic-damaged     trussed-archmodel     shear strength    

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Prediction of cyclic large plasticity for prestrained structural steel using only tensile coupon tests

Liang-Jiu JIA, Tsuyoshi KOYAMA, Hitoshi KUWAMURA

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 466-476 doi: 10.1007/s11709-013-0219-5

Abstract: This paper aims to predict cyclic plasticity of structural steels with tensile and compressive prestrainand compressive prestrain are conducted, and compared with numerical simulations using the Chaboche modelspecimens with tensile prestrain, while the second approach is able to accurately predict the cyclic plasticity

Keywords： cyclic plasticity     prestrain     Chaboche model     mild steel    

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An enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1531-1544 doi: 10.1007/s11709-020-0675-7

Abstract: Some of the current concrete damage plasticity models in the literature employ a single damage variableThis study presents a cyclic model established by extending an existing monotonic constitutive model.The proposed model, dubbed the enhanced concrete damage plasticity model (ECDPM), is an extension ofan existing model that combines the theories of classical plasticity and continuum damage mechanics.The performance of the model is observed to be satisfactory.

Keywords： damage plasticity model     plain concrete     cyclic loading     multiaxial loading conditions    

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Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 762-780 doi: 10.1007/s11709-022-0847-8

Abstract: And the calculation model considering dam construction process, contact between concrete and surroundingsoil, and concrete damage plasticity can reasonably reflect the mechanical behavior of the corridor.

Keywords： thick overburden     built-in corridor     stress     deformation     causes for damage     concrete damaged plasticity    

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Development of a constitutive model for rockfills and similar granular materials based on the disturbed

Mehdi VEISKARAMI, Ali GHORBANI, Mohammadreza ALAVIPOUR

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 365-378 doi: 10.1007/s11709-012-0178-2

Abstract: elasto-plastic behavior which suggests using the disturbed state concept to develop a constitutive modelThe presented constitutive model complies reasonably with the experimental data.

Keywords： constitutive model     granular material     rockfill     plasticity     disturbed state concept     stress level    

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Seismic retrofitting of severely damaged RC connections made with recycled concrete using CFRP sheets

Yasmin MURAD, Wassel AL BODOUR, Ahmed ASHTEYAT

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 554-568 doi: 10.1007/s11709-020-0613-8

Abstract: In addition, a finite element model is built in ABAQUS and verified using the experimental results.

Keywords： retrofitting     CFRP sheets     recycled concrete     pulverised fuel ash     silica fume     cyclic     beam-column connections    

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Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 446-455 doi: 10.1007/s11709-013-0227-5

Abstract: An estimate of the ultimate load on foundations on soil layers subject to groundwater flow has been presented. The kinematic approach of the limit analysis was employed to find the upper-bound limit of the bearing capacity. Both smooth and rough base strip foundations were considered associated with different collapse patterns. Presence of the groundwater flow leads to a non-symmetric collapse pattern, i.e., a weak side and a strong side in two-sided collapse patterns, depending on the direction of the flow. It was found that the bearing capacity has a decreasing trend with increase in the groundwater flow gradient and hence, a reduction factor has been introduced to the third term in the bearing capacity equation as a function of the flow gradient.

Keywords： foundation     bearing capacity     limit analysis     numerical computation     plasticity     seepage    

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Numerical modelling of reinforced concrete flexural members strengthened using textile reinforced mortars

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 649-668 doi: 10.1007/s11709-023-0919-4

Abstract: The principal objective of this numerical study was to develop a finite element model and validate aA set of seven beams was modelled and calibrated to obtain concrete damage plasticity (CDP) parametersMoreover, a parametric study was conducted to verify the applicability of the numerical model and studyThe developed finite element model can be applied and tailored further to explore similar TRM-strengthened

Keywords： fiber reinforced polymer     textile reinforced mortar     finite element analysis     concrete damage plasticity    

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Nonlinear numerical simulation of punching shear behavior of reinforced concrete flat slabs with shear-heads

Dan V. BOMPA, Ahmed Y. ELGHAZOULI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 331-356 doi: 10.1007/s11709-019-0596-5

Abstract: three-dimensional nonlinear numerical simulations and parametric assessments using concrete damage plasticity

Keywords： non-linear numerical modelling     concrete damage plasticity     RC flat slabs     shear-heads     punching shear    

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Study on principle of electromagnetic-proof bionics and fault-restore mechanism

Yuan Liang,Man Menghua and Chang Xiaolong

Strategic Study of CAE 2014, Volume 16, Issue 3,   Pages 76-85

Abstract: traditional electromagnet protection design.Thecomplex bionic topological networks based on Boolean modelBased on the creation of the neuron networks and the electrical synapses in character of plasticity，the

Keywords： bionics     electromagnetic bionics     electromagnetic protection     degeneracy     plasticity     robustness    

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Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints

CHEN Yu, ZHAO Xianzhong, CHEN Yiyi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 107-115 doi: 10.1007/s11709-008-0014-x

Abstract: A finite element model simulating an experiment on unstiffened, overlapped circular hollow structureUsing this model, the stress distribution, propagation of plasticity and the failure modes of overlapped

Keywords： regression analysis     consistent     unstiffened     plasticity     overlapped    

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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: by using Mohr−Coulomb yield criterion, whereas Generalized Hoek−Brown yield criterion is utilized to model

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

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Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements

Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 121-140 doi: 10.1007/s11709-015-0290-1

Abstract: The spatial variability of stress fields resulting from polycrystalline aggregate calculations involving random grain geometry and crystal orientations is investigated. A periodogram-based method is proposed to identify the properties of homogeneous Gaussian random fields (power spectral density and related covariance structure). Based on a set of finite element polycrystalline aggregate calculations the properties of the maximal principal stress field are identified. Two cases are considered, using either a fixed or random grain geometry. The stability of the method w.r.t the number of samples and the load level (up to 3.5% macroscopic deformation) is investigated.

Keywords： polycrystalline aggregates     crystal plasticity     random fields     spatial variability     correlation structure    

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Studying the stress-suction coupling in soils using an oedometer equipped with a high capacity tensiometer

Trung Tinh LE, Yu-Jun CUI, Juan Jorge MU?OZ, Pierre DELAGE, Anh Minh TANG, Xiang-Ling LI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 160-170 doi: 10.1007/s11709-011-0106-x

Abstract: with a completely different soil sample under suction, i.e. a statically compacted unsaturated low plasticity

Keywords： Oedometer     tensiometer     swelling     physicochemical and mechanical effects     stress/suction coupling     soil plasticity    

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Title Author Date Type Operation

Investigation on modeling parameters of concrete beams reinforced with basalt FRP bars

Jordan CARTER, Aikaterini S. GENIKOMSOU

Journal Article

Truss-arch model for shear strength of seismic-damaged SRC frame columns strengthened with CFRP sheets

Sheng PENG, Chengxiang XU, Xiaoqiang LIU

Journal Article

Prediction of cyclic large plasticity for prestrained structural steel using only tensile coupon tests

Liang-Jiu JIA, Tsuyoshi KOYAMA, Hitoshi KUWAMURA

Journal Article

An enhanced damage plasticity model for predicting the cyclic behavior of plain concrete under multiaxial

Mohammad Reza AZADI KAKAVAND, Ertugrul TACIROGLU

Journal Article

Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

Journal Article

Development of a constitutive model for rockfills and similar granular materials based on the disturbed

Mehdi VEISKARAMI, Ali GHORBANI, Mohammadreza ALAVIPOUR

Journal Article

Seismic retrofitting of severely damaged RC connections made with recycled concrete using CFRP sheets

Yasmin MURAD, Wassel AL BODOUR, Ahmed ASHTEYAT

Journal Article

Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Journal Article

Numerical modelling of reinforced concrete flexural members strengthened using textile reinforced mortars

Journal Article

Nonlinear numerical simulation of punching shear behavior of reinforced concrete flat slabs with shear-heads

Dan V. BOMPA, Ahmed Y. ELGHAZOULI

Journal Article

Study on principle of electromagnetic-proof bionics and fault-restore mechanism

Yuan Liang,Man Menghua and Chang Xiaolong

Journal Article

Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints

CHEN Yu, ZHAO Xianzhong, CHEN Yiyi

Journal Article

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

Journal Article

Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements

Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS

Journal Article

Studying the stress-suction coupling in soils using an oedometer equipped with a high capacity tensiometer

Trung Tinh LE, Yu-Jun CUI, Juan Jorge MU?OZ, Pierre DELAGE, Anh Minh TANG, Xiang-Ling LI

Journal Article