Investigation on microcapsule self‐healing mechanism of polymer matrix composites based on numerical simulation

For the last decade, many researchers have been working to develop self-healing materials, and have obtained good results in the field of polymers, these components with microencapsulated healing agent have exhibited noticeable mechanical performance and regenerative property The research described in this paper applies the concept of self healing to simulate self healing polymer matrix composites, with the aid of models developed by the authors for the manufacturing processes and self-healing behavior. The development of self-healing is a novel idea that has not been totally explored in great detail yet. The concept of self-healing described in this paper consists of simulation of a healing agent dicyclopentadiene (DCPD) inside of a microvascular network within a polymer matrix coating with catalyst forming a self-healing composite (SHC). When this SHC is damaged or cracked, the healing agent by capillary action will flow inside of the microvascular network; when the liquid enter in contact with the catalyst will form a polymer structure and sealing the crack. The study consists of theoretical analysis and Computational Fluid Dynamics of a self-healing polymer. The objective of the study reported here was to find the influence and efficiency of the microvascular network in healing a polymer matrix. To check this effect a computational model was created to simulate the healing treatment, thus a crack was created on the matrix surface piercing the microvascular network filled with healing agent and the method to simulate healing behavior of the composite allows assessment of the effects of the autonomously repairing repeated damage events.

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Application of Continuum Damage Healing Mechanics to Self-Healing Composites

Aerospace ◽

10.1115/imece2003-43738 ◽

2003 ◽

Cited By ~ 6

Author(s):

Ever J. Barbero ◽

Paolo Lonetti

Keyword(s):

Parameter Identification ◽

Polymer Matrix ◽

Polymer Matrix Composites ◽

Healing Process ◽

Fiber Reinforced Polymer ◽

Self Healing ◽

Matrix Composites ◽

Reinforced Polymer ◽

General Parameter ◽

Specific Material

Contimuum Damage Healig Mechanics is an extension of CDM recently developed by the authors to model healing process in a variety of materials including rock salt, sinterized metals, ceramics, and polymer-matrix composties, bone and so. on. While the theoretical framework, of CDHM is general, parameter identification depends on the particular material being modeled and the specific material tests that are feasible to conduct for that class of materials. This presentation deals with the application of CDHM to the specific field of fiber-reinforced polymer-matrix composites. An overview of CDHM will be presented followed by a description of parameter identification. Results are shown in order in validate the numerical model of healing behavior of damaged polymeric matrix composite. Healed and not healed cases discussed in order show the model capability and to describe possible evoltution of the healed system.

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A Review of Recent Advances in Nanoengineered Polymer Composites

Polymers ◽

10.3390/polym11040644 ◽

2019 ◽

Vol 11 (4) ◽

pp. 644 ◽

Cited By ~ 13

Author(s):

Vijay Kumar ◽

Balaganesan ◽

Lee ◽

Neisiany ◽

Surendran ◽

...

Keyword(s):

Polymer Matrix ◽

High Performance ◽

Polymer Matrix Composites ◽

Experimental Studies ◽

Impact Testing ◽

Self Healing ◽

Matrix Composites ◽

Reinforced Polymer ◽

Composite Engineering ◽

Year 2000

This review paper initially summarizes the latest developments in impact testing on polymer matrix composites collating the various analytical, numerical, and experimental studies performed since the year 2000. Subsequently, the scientific literature investigating nanofiller reinforced polymer composite matrices as well as self-healing polymer matrix composites by incorporating core-shell nanofibers is reviewed in-depth to provide a perspective on some novel advances in nanotechnology that have led to composite developments. Through this review, researchers can gain a representative idea of the state of the art in nanotechnology for polymer matrix composite engineering, providing a platform for further study of this increasingly industrially significant material, and to address the challenges in developing the next generation of advanced, high-performance materials.

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