Experimental and numerical research on the nonlinear creep response of polymeric composites under humid environments

Sun, Tongsheng; Yu, Cheng; Yang, Wenchao; Zhong, Jianlan; Xu, Qiang

doi:10.1016/j.compstruct.2020.112673

Cited by 9 publications

(2 citation statements)

References 25 publications

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“…Results showing how moisture affects creep behaviour are less frequent, but those which exist have indicated that water ingress can accelerate creep strain [24][25][26][27][28][29]. Time-temperature superposition has been used by a number of authors to produce master curves, with Miyano & Nakada in particular applying this approach successfully to predict a range of composite properties [30].…”

Section: Introductionmentioning

confidence: 99%

Characterization and modelling of the hygro-viscoelastic behaviour of polymer-based composites used in marine environment

Dezulier

Clément

Davies

et al. 2022

Phil. Trans. R. Soc. A.

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This paper presents results from a study of the long-term behaviour of carbon/epoxy composites. The interactions between ageing in water and constant mechanical loads are described, first experimentally then using a simple modelling approach. An identification procedure for the model is carried out and test/model comparisons are discussed. The results show that a four-parameter Burgers model can provide a good fit of the experimental data. The analysis of the results indicates the impact of water diffusion on the viscoelastic behaviour with larger strains for both creep and recovery phases. Those changes tend to appear at the early stage of the moisture diffusion process and stabilize quite quickly. This article is part of the theme issue 'Ageing and durability of composite materials'.

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Section: Introductionmentioning

confidence: 99%

Characterization and modelling of the hygro-viscoelastic behaviour of polymer-based composites used in marine environment

Dezulier

Clément

Davies

et al. 2022

Phil. Trans. R. Soc. A.

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“…Several studies have shown that the creep behavior of PBMs depends on many factors such as matrix content [ 6 , 7 , 8 , 9 ], particle size [ 10 , 11 , 12 ], stress [ 13 , 14 , 15 ], temperature [ 16 , 17 ], and humidity [ 18 , 19 ]. The importance of long-term properties for polymer composites are highlighted in recent studies [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

A Phenomenological Primary–Secondary–Tertiary Creep Model for Polymer-Bonded Composite Materials

et al. 2021

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This study develops a unified phenomenological creep model for polymer-bonded composite materials, allowing for predicting the creep behavior in the three creep stages, namely the primary, the secondary, and the tertiary stages under sustained compressive stresses. Creep testing is performed using material specimens under several conditions with a temperature range of 20 °C–50 °C and a compressive stress range of 15 MPa–25 MPa. The testing data reveal that the strain rate–time response exhibits the transient, steady, and unstable stages under each of the testing conditions. A rational function-based creep rate equation is proposed to describe the full creep behavior under each of the testing conditions. By further correlating the resulting model parameters with temperature and stress and developing a Larson–Miller parameter-based rupture time prediction model, a unified phenomenological model is established. An independent validation dataset and third-party testing data are used to verify the effectiveness and accuracy of the proposed model. The performance of the proposed model is compared with that of an existing reference model. The verification and comparison results show that the model can describe all the three stages of the creep process, and the proposed model outperforms the reference model by yielding 28.5% smaller root mean squared errors on average.

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The Use of the Homogenization Method in the Analysis of Anisotropic Creep in Metal-Matrix Composites

Altenbach

Lvov

Lvov³

et al. 2022

Material Modeling and Structural Mechanics

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Experimental and numerical research on the nonlinear creep response of polymeric composites under humid environments

Cited by 9 publications

References 25 publications

Characterization and modelling of the hygro-viscoelastic behaviour of polymer-based composites used in marine environment

Characterization and modelling of the hygro-viscoelastic behaviour of polymer-based composites used in marine environment

A Phenomenological Primary–Secondary–Tertiary Creep Model for Polymer-Bonded Composite Materials

The Use of the Homogenization Method in the Analysis of Anisotropic Creep in Metal-Matrix Composites

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