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A Bond-Based Peridynamic Model with Matrix Plasticity for Impact Damage Analysis of Composite Materials
Mingwei Sun1,2, Lisheng Liu1,2, Hai Mei1,2
1Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, Wuhan University of Technology, Wuhan 430070, China.
Materials (Basel, Switzerland)
|April 13, 2023
Summary
This study introduces a new bond-based peridynamic (BB-PD) model to predict damage in fiber-reinforced polymer composites under impact. The model accurately simulates impact damage, validating its effectiveness for protective structure design.
Area of Science:
- Materials Science
- Mechanical Engineering
- Computational Mechanics
Background:
- Predicting damage in fiber-reinforced polymer composites under extreme conditions, especially impact, is vital for designing protective structures.
- Existing models require enhancement to accurately capture complex failure mechanisms in composite materials subjected to dynamic loads.
Purpose of the Study:
- To develop and validate a novel bond-based peridynamic (BB-PD) model incorporating resin matrix plastic hardening for predicting impact damage in fiber-reinforced polymer composites.
- To investigate the damage characteristics and impact resistance of composite laminates with varying stacking sequences.
Main Methods:
- Proposed a BB-PD model integrating the prototype microelastic brittle (PMB) and LaRC05 composite failure models, including plastic hardening for the resin matrix.
- Modeled compressive loading constitutive relationships for matrix and interlayer bonds with linear elasticity and plastic hardening stages.
- Simulated impact damage in laminated composites and compared predictions with experimental ballistic impact test results.
Main Results:
- The BB-PD model accurately predicted the damage behaviors of composite laminates under ballistic impact.
- Simulation results showed good agreement with experimental data, confirming the model's correctness and accuracy.
- Analysis of simulation results provided insights into damage characteristics, degree of damage, and the influence of stacking sequences on impact resistance.
Conclusions:
- The developed BB-PD model is a reliable tool for simulating and analyzing impact damage in fiber-reinforced polymer composites.
- The model's ability to incorporate material plasticity enhances its predictive capability for complex loading scenarios.
- Findings contribute to improved design and application of composite materials in protective structures subjected to impact.
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