Composite material failure is a progression of discrete failure events occurring separately in the matrix and fiber constituents, usually resulting in nonlinear material behavior. Homogeneous, linear-elastic methods employed by most traditional failure criterion mask this unique phenomenon, resulting not only in inaccurate results, but often failing to converge on any solution at all. These significant challenges often prevent analysts from achieving a progressive failure analysis – confining them to conservative first-ply-failure solutions. The following paper will address the issues with composite progressive failure analysis and discuss how Autodesk® Helius PFA has been developed to address these challenges.
For full paper, view: Helius PFA 2017 Progressive Failure White Paper (PDF)