Year: 2008
Type: article
Abstract: With dimensional analysis and similarity theory, the model similarity law of aircraft structures under bird impact load is investigated. Numerical calculations by means of nonlinear dynamic software ANSYS/LS-DYNA are conducted on the finite element models constructed with different scaling factors. The influence of strain rate on the model similarity law is found to be dependent on the strain rate sensitivity of materials and scale factors. Specifically, materials that are not sensitive to strain rate obey the model similarity law in the bird impact process. The conclusions obtained are supposed to provide a theoretical basis for the experimental work of bird impact on aircraft structure.
Source: Chinese Journal of Aeronautics
Authors: Li Yulong, Zhang Yongkang, Xue Pu
Institution: Northwestern Polytechnical University
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,000
OpenAlex ID: W1988709266