Contact analysis of laminated structures including transverse shear and stretching
| Autor: | Erasmo Carrera, M. H. Nagaraj, Ibrahim Kaleel, Marco Petrolo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Node-to-Node contact CUF Multilayer Sandwich Work (thermodynamics) Current (mathematics) Mechanical Engineering Degrees of freedom (statistics) Contact analysis General Physics and Astronomy 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Finite element method CUF Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Node-to-Node contact Multilayer General Materials Science Sandwich 0210 nano-technology Order of magnitude Beam (structure) |
| Zdroj: | European Journal of Mechanics-A/Solids |
| Popis: | This work presents contact problems of laminated structures via the Carrera Unified Formulation (CUF). The modeling approach makes use of higher-order 1D elements accounting for transverse shear and stretching. The current work considers normal, frictionless contact based on a node-to-node formulation, and the penalty approach to enforce the contact constraints. Numerical assessments compare classical beam theories, higher-order CUF, and 3D finite element models regarding solution accuracy, computational size, and time required for the analysis. The results show the validity of Layer-Wise CUF models to capture both global and local deformations accurately, which is a shortcoming of classical beam theories, and require at least an order of magnitude fewer degrees of freedom and computational time than a full 3D finite element analysis. Particularly relevant are the accurate distributions of transverse shear stress and stretching along the thickness in the perspective of failure analyses. |
| Databáze: | OpenAIRE |
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