An Element-Based Peridynamic Model for Elastic and Fracture Analysis of Composite Lamina

An element-based peridynamic (EBPD) model for composite lamina is proposed to solve the displacement field, stress field, and crack propagation problems. The continuous change of material properties with the angle, such as the composite lamina with any fiber orientation, can be realized by the EBPD model. The model also defines the non-local stress and non-local strain, which can introduce damage criteria of continuum mechanics. The reducing element scheme is also introduced to improve the computation efficiency. The effectiveness of the model is demonstrated by a series of examples, including the displacement analysis, stress analysis, and crack growth of the composite lamina.