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Multiscale model of micro curing residual stress evolution in carbon fiber-reinforced thermoset polymer

Xinyu HUI, Yingjie XU, Weihong ZHANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 475-483 doi: 10.1007/s11465-020-0590-6

Abstract: In this study, the micro curing residual stresses of carbon fiber-reinforced thermoset polymer (CFRP)A thermochemical coupling model is developed at the macroscale level to obtain the distributions of temperatureMeanwhile, a representative volume element model of the composites is established at the microscale levelusing the microscale model.period during the curing process.

Keywords: CFRP     curing residual stress     multiscale modeling     finite element method    

Research on strength developing law during the curing of domestic epoxy asphalt mixture

Qian Zhendong,Wang Yaqi and Shen Jialin

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 90-95

Abstract:

Based on the mechanism of strength, the reserved time and curing temperatureWe use the method of nonlinear regression to obtain the key parameters of curing kinetics.Then the model of curing reaction of epoxy asphalt binder is established.

Keywords: epoxy asphalt     strength increasing     time-temperature condition     curing model    

Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological, curing

Jinian Yang, Yuxuan Xu, Chang Su, Shibin Nie, Zhenyu Li

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1281-1295 doi: 10.1007/s11705-020-2007-9

Abstract: The morphological structures, tribological performances, curing behaviors and thermal properties of EPMoreover, analysis on cure kinetics proves the excellent promotion of CNT@Ni-PS on the non-isothermal curingprocess, lowering the curing energy barrier steadily.

Keywords: nickel phyllosilicate     surface decoration     tribological property     curing kinetics     thermal performance    

evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented paste backfill: Effect of curingtemperature and curing time

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 256-270 doi: 10.1007/s11709-022-0924-z

Abstract: The curing temperature-dependent cement hydration causes the nonlinear evolution of fracture behaviorTherefore, the coupled effect of curing temperature (20, 35, and 45 °C) and cement hydration at differentcuring times (3, 7, and 28 d) on the mode-I and mode-II fracture behavior and properties of fiber-reinforced

Keywords: fiber reinforcement     cemented paste backfill     fracture behavior     underground mine     cement hydration    

The influence of curing conditions on the mechanical properties and leaching of inorganic polymers made

Remus I. Iacobescu, Valérie Cappuyns, Tinne Geens, Lubica Kriskova, Silviana Onisei, Peter T. Jones, Yiannis Pontikes

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 317-327 doi: 10.1007/s11705-017-1622-6

Abstract: This study reports on the impact of the curing conditions on the mechanical properties and leaching ofThis was found to be attributed to the cracks formed upon curing.

Keywords: inorganic polymer     geochemical leaching modelling     heavy metals     recycling     non-ferrous fayalitic slag     curing    

Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological, curing

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1530-1530 doi: 10.1007/s11705-022-2240-5

Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 348-353 doi: 10.1007/s11709-010-0077-3

Abstract: To investigate the influence of initial curing conditions and exposure environments on chloride ions&The results indicated that the initial curing conditions and the wet-dry interval of external environmentsThe co-effects of the initial curing condition and following exposure environment should be taken into

Keywords: durability     effective diffusion coefficient     steady-state     migration test    

Influence of accelerated curing on the compressive strength of polymer-modified concrete

Izhar AHMAD; Kashif Ali KHAN; Tahir AHMAD; Muhammad ALAM; Muhammad Tariq BASHIR

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 5,   Pages 589-599 doi: 10.1007/s11709-022-0789-1

Abstract: In recent building practice, rapid construction is one of the principal requisites. Furthermore, in designing concrete structures, compressive strength is the most significant of all parameters. While 3-d and 7-d compressive strength reflects the strengths at early phases, the ultimate strength is paramount. An effort has been made in this study to develop mathematical models for predicting compressive strength of concrete incorporating ethylene vinyl acetate (EVA) at the later phases. Kolmogorov-Smirnov (KS) goodness-of-fit test was used to examine distribution of the data. The compressive strength of EVA-modified concrete was studied by incorporating various concentrations of EVA as an admixture and by testing at ages of 28, 56, 90, 120, 210, and 365 d. An accelerated compressive strength at 3.5 hours was considered as a reference strength on the basis of which all the specified strengths were predicted by means of linear regression fit. Based on the results of KS goodness-of-fit test, it was concluded that KS test statistics value (D) in each case was lower than the critical value 0.521 for a significance level of 0.05, which demonstrated that the data was normally distributed. Based on the results of compressive strength test, it was concluded that the strength of EVA-modified specimens increased at all ages and the optimum dosage of EVA was achieved at 16% concentration. Furthermore, it was concluded that predicted compressive strength values lies within a 6% difference from the actual strength values for all the mixes, which indicates the practicability of the regression equations. This research work may help in understanding the role of EVA as a viable material in polymer-based cement composites.

Keywords: compressive strength prediction     polymer-modified concrete     linear regression fit     early age strength     ethylene vinyl acetate    

Assessing compressive strengths of mortar and concrete from digital images by machine learning techniques

Amit SHIULY; Debabrata DUTTA; Achintya MONDAL

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 347-358 doi: 10.1007/s11709-022-0819-z

Abstract: These include support-vector machine model and various deep convolutional neural network models, namely

Keywords: support vector machine     deep convolutional neural network     microscope     digital image     curing period    

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel fibers

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 429-445 doi: 10.1007/s11709-013-0226-6

Abstract: concrete mixtures were studied systematically with the addition of accelerating admixtures and accelerated curingThe proper selection of concrete ingredients, addition of accelerator and initial steam curing for 18

Keywords: fly ash     pozzolanic index     steam curing     superplasticizer     accelerator     steel fibres     elastic modulus    

Improved “cure on demand” of aromatic bismaleimide with thiol triggered by retro-Diels-Alder reaction

Vincent Froidevaux, Mélanie Decostanzi, Abdelatif Manseri, Sylvain Caillol, Bernard Boutevin, Rémi Auvergne

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 330-339 doi: 10.1007/s11705-020-1929-6

Abstract: study focuses on the synthesis of new liquid aromatic bismaleimide monomers in order to improve self-curingKinetic analysis was monitored by H NMR and compared to model study.

Keywords: thiol-ene polymerization     self-curing on demand     thia-michael addition     Diels-Alder     maleimide    

Standard model of knowledge representation

Wensheng YIN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 275-288 doi: 10.1007/s11465-016-0372-3

Abstract: methods include predicate logic, semantic network, computer programming language, database, mathematical modelintrinsic link between various knowledge representation methods, a unified knowledge representation modelAccording to ontology, system theory, and control theory, a standard model of knowledge representationThe model is composed of input, processing, and output.In addition, the standard model of knowledge representation provides a way to solve problems of non-precision

Keywords: knowledge representation     standard model     ontology     system theory     control theory     multidimensional representation    

State of the Art of Compartment Fire Modeling

Zheng Xin,Yuan Hongyong

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 68-74

Abstract: The relevant underlying physical assumptions are presented first and the conventional model performance

Keywords: compartment     field model     zone model     network model     FZN (field     zone and network) model     empirical model    

Elevated temperature creep model of parallel wire strands

Frontiers of Structural and Civil Engineering   Pages 1060-1071 doi: 10.1007/s11709-023-0981-y

Abstract: analyze their creep behavior, this study experimentally investigated the elevated temperature creep modelThe parameters in the general empirical formula, the Bailey–Norton model, and the composite time-hardeningmodel were fitted based on the experimental results.By evaluating the accuracy and form of the models, the composite time-hardening model, which can simultaneously

Keywords: parallel wire strands     experimental study     elevated temperature creep model    

Title Author Date Type Operation

Multiscale model of micro curing residual stress evolution in carbon fiber-reinforced thermoset polymer

Xinyu HUI, Yingjie XU, Weihong ZHANG

Journal Article

Research on strength developing law during the curing of domestic epoxy asphalt mixture

Qian Zhendong,Wang Yaqi and Shen Jialin

Journal Article

Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological, curing

Jinian Yang, Yuxuan Xu, Chang Su, Shibin Nie, Zhenyu Li

Journal Article

evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented paste backfill: Effect of curingtemperature and curing time

Journal Article

The influence of curing conditions on the mechanical properties and leaching of inorganic polymers made

Remus I. Iacobescu, Valérie Cappuyns, Tinne Geens, Lubica Kriskova, Silviana Onisei, Peter T. Jones, Yiannis Pontikes

Journal Article

Synthesis of hierarchical nanohybrid CNT@Ni-PS and its applications in enhancing the tribological, curing

Journal Article

Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Journal Article

Influence of accelerated curing on the compressive strength of polymer-modified concrete

Izhar AHMAD; Kashif Ali KHAN; Tahir AHMAD; Muhammad ALAM; Muhammad Tariq BASHIR

Journal Article

Assessing compressive strengths of mortar and concrete from digital images by machine learning techniques

Amit SHIULY; Debabrata DUTTA; Achintya MONDAL

Journal Article

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel fibers

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Journal Article

Improved “cure on demand” of aromatic bismaleimide with thiol triggered by retro-Diels-Alder reaction

Vincent Froidevaux, Mélanie Decostanzi, Abdelatif Manseri, Sylvain Caillol, Bernard Boutevin, Rémi Auvergne

Journal Article

Standard model of knowledge representation

Wensheng YIN

Journal Article

Zhang Zhengyan: Pre Training Language Model Integrating Knowledge (2020-4-3)

18 Apr 2022

Conference Videos

State of the Art of Compartment Fire Modeling

Zheng Xin,Yuan Hongyong

Journal Article

Elevated temperature creep model of parallel wire strands

Journal Article