Constitutive modelling of a self-healing composite matrix polymer material

Smojver, Ivica; Ivančević, Darko; Dominik, Brezetić; Haramina, Tatjana

doi:10.1177/10567895221095609

Cited by 7 publications

(6 citation statements)

References 33 publications

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“…The application of microcapsule-based self-healing agent to produce a wind turbine blade was reported to also have a lower degradation rate. [112] According to Ivika et al, [113] autonomous materials that heals damages are considered detrimental to the component and are usually used in structural fibers reinforced polymeric composites, mainly to recover the stiffness. Huang et al [114] designated a self-healing agent for a low technology readiness level (TRL) experiment in which they loaded a 1D vascular-based selfhealing material and a microcapsule-based self-healing material in an carbon fiber polymer composite aircraft component.…”

Section: Self-healing Applicationsmentioning

confidence: 99%

A review on self‐healing polymers and polymer composites for structural applications

et al. 2022

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Polymer composites when employed for structural applications undergo dynamic stresses and strains that initiate fatigue‐induced microcracks, which by their coalescence cause the failure of the materials, thus limiting their service life. To overcome this hurdle, one of the recent approaches relies on the development of smart self‐healing polymers that, analogously to biological systems, can use damage as a trigger to activate the self‐repair phenomenon, thus extending their service life. This work reviews the self‐healing approach in polymer‐based materials for structural applications. It focuses on three main aspects, which are also explained with schematics that illustrate the mechanisms involved. The first aspect describes the different strategies adopted for self‐healing polymeric structures, the self‐healing agents used, as well as the reactions responsible for repairing the damage. The second part is focused on the methods used to disperse the self‐healing agents and catalysts within the polymer systems. The third section details the different self‐healing mechanisms and the effectiveness of self‐healing approaches in terms of mechanical and dynamical‐mechanical behavior of materials. Challenges and future research outlook highlighting the importance of relaxation time and fatigue characterization and to understand the mechanisms and possible improvements are also presented.

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Section: Self-healing Applicationsmentioning

confidence: 99%

A review on self‐healing polymers and polymer composites for structural applications

et al. 2022

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“…In general, foreign-aided self-healing composites include microcapsules, capillaries, and hollow fibers. [22][23][24][25][26][27] Coope et al 28 investigated the self-healing function of composites by embedding a microvascular network design containing a healing agent. They found that the injected healing agent possessed a high healing efficiency and was able to stop the crack extension within the composite when damage occurred.…”

Section: Introductionmentioning

confidence: 99%

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Li,

Tie,

2024

Polymer Composites

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This paper investigates toughening and self‐healing properties of plain woven composite structure with poly[ethylene‐co‐methacrylic acid] (EMAA) stitches. Firstly, the cantilever beam specimens with different stitched spacing were performed to determine inter‐laminar fracture toughness. Subsequently, the finite element models of EMAA stitched cantilever beam was established to predict the toughening effects based on nonlinear spring and cohesive zone model (CZM). The force‐displacement responds of experimental and simulation results show excellent correlation. Finally, the toughening and healing mechanism of the stitched plain woven structure were explored. Compared with the original specimen, the EMAA stitched structure shows an excellent toughening ability. After heating, the damaged structure was healed through pressure deliver mechanism to restore the interlaminar fracture toughness of the composite.Highlights Thermoplastic EMAA filaments with self‐healing properties were sewn into the woven composite. The EMAA stitched woven composite structure exhibits excellent interlaminar toughening and healing properties. Finite element model combined non‐linear spring and CZM was established to predict the toughening effects. The toughening and self‐healing mechanisms of EMAA stitched plain woven structure were revealed in detail.

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“…The damage evolution for the liquid-assisted healing material systems were proposed by (Siroky et al, 2021). A micro-damage initiation and evolution constitutive law has been developed and implemented in FEA by Ivica et al (2022). Han et al (2021) developed a threedimensional micromechanical model to quantitatively explain the self-healing effects of microencapsulated healing agents on the damage induced by microcracks.…”

Section: Introductionmentioning

confidence: 99%

“…The damage evolution for the liquid-assisted healing material systems were proposed by (Siroky et al., 2021). A micro-damage initiation and evolution constitutive law has been developed and implemented in FEA by Ivica et al. (2022).…”

Section: Introductionmentioning

confidence: 99%

Statistical continuum damage healing mechanics (SCDHM)

Shojaei

Voyiadjis

2023

International Journal of Damage Mechanics

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Damage healing mechanics has been under tremendous development during the past decade in which many constitutive models for different classes of materials have been proposed in the literature. However, to bridge the gap between the physics of healing and the theoretical framework, the statistical nature of the damage healing mechanics must be considered. The statistical nature of the crack nucleation and propagation processes is well-known, and the healing mechanisms follow similar probabilistic processes. In general, the healing process consists of two steps: (I) sealing, in which the free crack surfaces are brought in contact with the help of external forces, and then, (ii) healing, which may include a variety of techniques including the flow of molten polymers or liquid healing agents into the crack free surface areas and solidifying. Both sealing and healing processes can be considered within statistical mechanics to include multiple uncertainties involved in the healing process. This work proposes a framework to integrate statistical mechanics into the continuum of damage healing mechanics. The proposed statistical damage healing mechanics may help designers and scientists to perform more realistic simulations for components under complex damage and healing cycles. The key outputs of the proposed statistical framework are (I) healing method choice, and (II) healing parameter optimization.

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Constitutive modelling of a self-healing composite matrix polymer material

Cited by 7 publications

References 33 publications

A review on self‐healing polymers and polymer composites for structural applications

A review on self‐healing polymers and polymer composites for structural applications

Investigations on toughening and self‐healing performance of plain woven composites with mendable polymer stitches

Statistical continuum damage healing mechanics (SCDHM)

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