Explain these capabilities: simulation of crack initiation and growth to failure, (2) progressive fracture analysis to determine durability and damage tolerance.?
A1-Progressive fracture involves detailed tracking of damaged nodes, detailed representation of a unit cell to track crack initiation, the sequence of growth to failure, and breakage (in matrix, interface, or fiber) within the unit cell. A2-Durability, damage tolerance and life prediction can be a function of several sequential loading profiles. As an example, a structure can be first exposed to an impact condition, followed by compression loading, and fatigue loading. In this case the determination of durability and damage tolerance requires three sequential simulations. In each simulation the changed geometry and material properties are the input to the next. Q-Can GENOA be used to analyze sandwich panels? What type of damage can be represented in a sandwich panel? Can damage in a single facesheet be accurately represented with a single shell element? What about delamination, facesheet buckling, and core failure through the thickness? A1- GENOAs use for analysis of sandwich structure
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