Multiscale modeling of extrinsic self healing GFRP materials

نویسندگان

چکیده

Abstract In this study, a novel multiscale material model is proposed to simulate the elasto-plastic damage-healing behavior of an epoxy matrix in composite material. This framework combines non-linear mean field homogenization methodologies with continuum mechanics achieve healing process coupled manner along damage. The able predict time dependent effect combined damage propagation. model, depends on current matrix, available that can evolve and rate healing. A parametric study respect dependency analysis were performed examine sensitivity model. addition, microscale method calculate initiation efficiency using representative volume element microcapsules. simulation showed 7.5% fraction microcapsules 40% structural integrity be recovered.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Modeling of Self-Healing Concrete: A Review

Self-healing concrete (SHC) has received a tremendous attention due to its advanced ability of automatic crack detection and crack repairing compared to the standard concrete. Two main approaches which considered as to-date self-healing mechanisms are autogenous and autonomous healing. In the past several years, the effort of the research has been focused on experimental works instead of numeri...

متن کامل

Multiscale Modeling of Polymeric Materials

Review of Project Objectives: Our overall objective for the three-year duration of this project is to design an adaptive, learning, simulation technique for polymers covering the range from atoms to coarsegrained chains, and apply the technique to the description of nanofilled polymers. Accomplishing this objective requires four activities, with the first two corresponding to the first two proj...

متن کامل

Polydimethylsiloxane-Based Self-Healing Materials

Self-healing represents a new paradigm for active and responsive materials. As first demonstrated by White et al., and subsequently in additional publications, polymer composites can be engineered to chemically self-heal. However, the chemistry of previous systems possesses inherent shortcomings due to the potential side reactions with the polymer matrix and air. Here we present a new, chemical...

متن کامل

Nanocapsules for self-healing materials

We report an in situ encapsulation method demonstrating over an order of magnitude size reduction for the preparation of urea–formaldehyde (UF) capsules filled with a healing agent, dicyclopentadiene (DCPD). Capsules with diameters as small as 220 nm are achieved using sonication techniques and an ultrahydrophobe to stabilize the DCPD droplets. The capsules possess a uniform UF shell wall (77 n...

متن کامل

Self-healing structural composite materials

A self-healing fiber-reinforced structural polymer matrix composite material is demonstrated. In the composite, a microencapsulated healing agent and a solid chemical catalyst are dispersed within the polymer matrix phase. Healing is triggered by crack propagation through the microcapsules, which then release the healing agent into the crack plane. Subsequent exposure of the healing agent to th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Modelling and Simulation in Materials Science and Engineering

سال: 2022

ISSN: ['1361-651X', '0965-0393']

DOI: https://doi.org/10.1088/1361-651x/acaa49