Modeling and Bearing Damage Simulation Methodology for Cabin Structure in a Virtual Test Framework
A product-oriented virtual test framework for structural strength of aircraft bodies is proposed,under which the classical elastic-plastic damage constitutive of materials and general finite element technology are developed,and a human-computer interactive virtual test platform for aircraft cabin structure is created based on the virtual test plug-in tool developed by Abaqus built-in Python software.Using the accurate confirmation technology of step-by-step inspection,the virtual/real test comparison from the specimen to the complex cabin is carried out to verify the feasibility of the virtual test of the cabin structure.The results show that the virtual test can simulate the load-bearing failure of the cabin structure with high fidelity,and the prediction accuracy of the ultimate load-bearing capacity is 4.6%.
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