SingSol: A Web Application for Singularity Analysis in Multi-material Corners with Homogeneous Boundary Conditions

The web application SingSol offers a user-friendly and versatile tool for researchers and engineers that need to determine the singularity exponents and the singular stress and displacement fields in multi-material linear elastic corners with homogeneous boundary conditions. It covers a wide range of configurations, involving homogeneous wedges and various boundary conditions, including perfect bonding or frictionless sliding interfaces between wedges in the corner. The theoretical framework of this powerful tool considers power-law stress singularities, and is based on the Stroh formalism of anisotropic elasticity, assuming generalized plane strain conditions (2.5D), and the concept of transfer matrix for single material wedges, along with the matrix formalism for homogeneous (orthogonal) boundary conditions. This approach is well suited for computational implementations, being particularly efficient in scenarios involving multiple perfectly bonded homogeneous wedges. The fully semi-analytical nature of this tool provides its very high accuracy. SingSol comprises a graphical user interface (GUI) and a Python-based back-end code hosted on the server of the research group. It incorporates and solves limitations found in other currently available codes, providing a flexible solution for isotropic and anisotropic materials while supporting various boundary and interface conditions.