Abstract
As the research object to the I-plate composite structure, a stiffness degradation method is developed by combined continuum damage mechanics with the solid finite element analysis method. The Tsai-Wu failure criterion is applied for structural damage initiation. Additionally, exponential equation associated with stress is used to simulate damage development. Based on the progressive damage model established, a 3D finite element technique is proposed to perform the progressive failure process in ANSYS. The structural damage development and simulated load–displacement curve are received, and compared with experimental results under transverse bending load. The compare results show the validity of progressive damage analysis method.
Published Version
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