Work

Theoretical Analysis of the Effective Properties of Polymer-Based Composites Considering Particle-Size Effects and Damage Evolution

Year: 2025

Type: article

Abstract: In engineering, the demand for lightweight yet strong materials has led to the widespread use of polymer matrix composites reinforced with particles. These composites offer superior mechanical properties, making them ideal for applications in areas such as the automotive, aerospace, and construction industries. This paper presents a micromechanical model for particle-reinforced polymer matrix composites with interphase layers, enabling the prediction of effective bulk, shear, and Young’s moduli while accounting for damage. Model validation is achieved by comparing the calculated elastic moduli for two composite types. This study highlights that stiffer or smaller particles enhance elasticity, while a robust interphase preserves mechanical properties, despite damage. A statistical criterion describes interphase debonding probability, and the Ramberg–Osgood equation captures the polymer matrix’s elastoplastic behavior. Numerical analyses on polypropylene composites with glass beads demonstrate how particle size, interphase strength, and debonding affect performance, aligning well with experimental data.

Source: Processes

DOI: 10.3390/pr13030871

Authors: Zelong Wang, Yong Cheng, Huichuan Zhao

Institutions: Yanshan University, Metallurgical Corporation of China (China)

Language: English

Topic: Composite Material Mechanics

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: Natural Science Foundation of Hebei Province