A nonlocal lattice particle model for fracture simulation of anisotropic materials

作者：Chen Hailong; Jiao Yang; Liu Yongming^*

来源：Composites Part B: Engineering , 2016, 90: 141-151.

DOI：10.1016/j.compositesb.2015.12.028

• Laminates
• Delamination
• Fracture
• Computational modelling

A novel nonlocal lattice particle model for fracture simulation of anisotropic materials is proposed. The key idea is to handle material anisotropy by rotating topological lattice structure rather than transforming material stiffness matrix. One major advantage of this model is that the crack path preference of anisotropic materials is naturally incorporated by underlying lattice structure. First, analytical derivation and formulation of the proposed model are given. The equivalency of lattice structure rotation and stiffness transformation is discussed. Following this, numerical examples are used to demonstrate the modeling capability of proposed methodology. Discussions and future work are given based on the current investigation.

• 出版日期2016-4-1