Efficient High-Fidelity, Geometrically Exact, Multiphysics Structural Models
Abstract
Under the sponsorship of AFOSR, USU carried out a challenging research project to develop efficient high-fidelity, geometrically exact, multi physics structural models for synergetic exploitations of static or dynamic large nonlinear structural deformations under coupled thermal, electromagnetic, and mechanical loads. The approach uses the concept of decomposition of the rotation tensor to systematically capture all geometrical nonlinearities, and uses the variational asymptotic method to achieve an excellent tradeoff between accuracy and efficiency. In the first year, we have carried out a critical assessment of the proposed approach and developed models for functionally graded plates. In the second year, we developed models for functionally graded smart plates responsive to electromagnetical fields in addition to mechanical fields. We also developed a new classical plate model for heterogeneous plates through simultaneous homogenization and dimensional reduction. In the third year, we initiated the development for a geometrically exact plate analysis, a refined plate model for heterogeneous plates, and used the finite element method to solve the multi physics plate model and confirmed our analytical solutions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 14, 2011
- Accession Number
- ADA563992
Entities
People
- Wenbin Yu
Organizations
- Utah State University