Temperature dependent longitudinal tensile strength model of unidirectional fiber reinforced polymer composites considering the effect of matrix plasticity

Li, Ying; Li, Weiguo; Ma, Jianzuo; Zheng, Shifeng; Zhao, Zhongyong; Yang, Mengqing; Dong, Pan; Chen, Liming

doi:10.1016/j.eml.2020.100963

Cited by 13 publications

(9 citation statements)

References 42 publications

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“…As displayed in Figures 3 and 4, the theoretical predictions are in good congruence with the experimental data. The comparison between the present TDDTS model and our previous model [ 22 ] demonstrates the better predicted performance of the TDDTS model. Meanwhile, the proposed model requires fewer material parameters for theoretical prediction.…”

Section: Resultsmentioning

confidence: 67%

“…Further, more recent studies shows that the failure strain will evolve with the change of temperature. [ 4,15 ] To account for the effect of temperature on nominal failure strain, according to the author's previous work [ 2,18,22 ] and our team's study on temperature dependent mechanical properties of materials, [ 19,20,26–28 ] the temperature dependence of nominal failure strain can be expressed as:

ε_{failure} ((), T) goodbreak= C_{s} \cdot {({lr}_{f}^{2} / V_{f})}^{β} \cdot {[1 - \frac{T - T_{0}}{T_{melting} - T_{0}}]}^{\frac{1}{2}} .

…”

Section: Resultsmentioning

confidence: 99%

“…A major concern here is to derive the formulas of critical strain energy density of fiber and matrix. To this end, on the basis of the previous study, we got the relation expressions between the temperature dependent average internal stress in constituents and the applied load on composites, it yields [ 22 ] :

σ_{11}^{f} ((), T) goodbreak= \frac{E_{11}^{f} ((), T)}{V_{f} E_{11}^{f} ((), T) + ((), 1 goodbreak- V_{f}) E_{m} ((), T)} σ_{a} ((), T),

σ_{11}^{m} ((), T) goodbreak= \frac{E_{m} ((), T)}{V_{f} E_{11}^{f} ((), T) + ((), 1 goodbreak- V_{f}) E_{m} ((), T)} σ_{a} ((), T) .

where

σ_{11}^{f} ((), T)

and

σ_{11}^{m} ((), T)

are the average stress of fiber and matrix at temperature T , respectively.

E_{11}^{f} ((), T)

and

E_{m} ((), T)

are Young's modulus of fiber and matrix at temperature T .…”

Section: Theoretical Derivationsmentioning

confidence: 99%

Section: Theoretical Derivationsmentioning

confidence: 99%

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Modeling and influencing factor analysis for the temperature and damage dependent tensile strength of fiber/polymer composites

Zhang

et al. 2022

Polymer Composites

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With the rapid development of aerospace technology, the application of fiber/ polymer composites in extreme environments especially at high temperature gets more and more extensive, the tensile properties of fiber/polymer composites in different temperatures environment have become a critical issue of concern. In this work, a temperature and damage dependent tensile strength (TDDTS) model for fiber/polymer composites was presented based on the force-heat equivalence energy density principle and the damage failure analysis. The TDDTS model considers the combined effects of temperature, the evolution of constituents' properties and damage with temperature. Meanwhile, the TDDTS model has advantages from the aspects of prediction accuracy and convenience by comparison with our previous model and the Curtin's model.Further on, the influencing factors analysis of fiber/polymer composites concerning the tensile properties and damage evolution with temperature was conducted. This study offers a reliable model for predicting the TDDTS of fiber/polymer composites, and provides important insight for the strength degradation mechanism and the damage evolution.

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Section: Resultsmentioning

confidence: 67%

ε_{failure} ((), T) goodbreak= C_{s} \cdot {({lr}_{f}^{2} / V_{f})}^{β} \cdot {[1 - \frac{T - T_{0}}{T_{melting} - T_{0}}]}^{\frac{1}{2}} .

…”

Section: Resultsmentioning

confidence: 99%

σ_{11}^{f} ((), T) goodbreak= \frac{E_{11}^{f} ((), T)}{V_{f} E_{11}^{f} ((), T) + ((), 1 goodbreak- V_{f}) E_{m} ((), T)} σ_{a} ((), T),

σ_{11}^{m} ((), T) goodbreak= \frac{E_{m} ((), T)}{V_{f} E_{11}^{f} ((), T) + ((), 1 goodbreak- V_{f}) E_{m} ((), T)} σ_{a} ((), T) .

where

σ_{11}^{f} ((), T)

and

σ_{11}^{m} ((), T)

are the average stress of fiber and matrix at temperature T , respectively.

E_{11}^{f} ((), T)

and

E_{m} ((), T)

are Young's modulus of fiber and matrix at temperature T .…”

Section: Theoretical Derivationsmentioning

confidence: 99%

Section: Theoretical Derivationsmentioning

confidence: 99%

See 2 more Smart Citations

Modeling and influencing factor analysis for the temperature and damage dependent tensile strength of fiber/polymer composites

Zhang

et al. 2022

Polymer Composites

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“…The molecular bond strength of the material decreased, as well as its bending strength from 811 to 255 MPa. Another study was conducted in 2020 by Li et al, in which it was discovered that the tensile strength together with the residual thermal stress of E-glass fibre polymers decreased with increasing exposure temperature [ 66 ]. Figure 6 shows an illustration on how the delamination process occurred after the polymer matrix was broken down due to the rise in fluid temperature.…”

Section: Degradation Of Recycled Carbon Fibre Compositesmentioning

confidence: 99%

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

et al. 2022

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Carbon fibres are widely used in modern industrial applications as they are high-strength, light in weight and more reliable than other materials. The increase in the usage of carbon fibres has led to the production of a significant amount of waste. This has become a global issue because valuable carbon fibre waste ends up in landfill. A few initiatives have been undertaken by several researchers to recycle carbon fibre waste; however, the properties of this recycled material are expected to be worse than those of virgin carbon fibre. The incorporation of polymers, nanoparticles and other hybrid materials could enhance the overall properties of recycled carbon fibre waste. However, the degradation of fibre composites is expected to occur when the material is exposed to certain conditions and environments. The study of fibre composite degradation is crucial to enhance their properties, strength, safety and durability for future applications.

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Characterizing the temperature and strain rate dependent tensile strength of amorphous polymer by a theoretical model

2023

J of Applied Polymer Sci

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The temperature and strain rate dependent (TSRD) tensile strength of polymer closely concerns the service safety in wide temperature range and dynamic load. In this study, based on the decoupled modeling method, a theoretical model of TSRD tensile strength of amorphous polymer was established. The model quantifies the relationship between the TSRD tensile strength, Young's modulus, heat capacity, glass transition temperature and melting temperature of amorphous polymer. The model predictions demonstrated an excellent consistency with the experimental data. Furthermore, the influencing factors analysis regarding the TSRD tensile strength were conducted. This study contributes a theoretical method to conveniently predict the TSRD tensile strength of amorphous polymer, and would be helpful to the evaluation and application of polymer in extreme conditions.

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Temperature dependent longitudinal tensile strength model of unidirectional fiber reinforced polymer composites considering the effect of matrix plasticity

Cited by 13 publications

References 42 publications

Modeling and influencing factor analysis for the temperature and damage dependent tensile strength of fiber/polymer composites

Modeling and influencing factor analysis for the temperature and damage dependent tensile strength of fiber/polymer composites

A Review on Recycling of Carbon Fibres: Methods to Reinforce and Expected Fibre Composite Degradations

Characterizing the temperature and strain rate dependent tensile strength of amorphous polymer by a theoretical model

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