Impact Behavior of Polymeric Matrix Composite Materials.
Final technical rept. Mar 75-Jul 76,
DREXEL UNIV PHILADELPHIA PA
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The problem of foreign-object impacts of jet-engine fan-blades is studied by two approaches. First, the overall response of a blade-like structure is predicted by a one-degree-of-freedom impact model in which the blade is treated as a cantilever beam or plate. Design curves are presented for finding the peak stress levels in many impact situations, including both hard and soft fluid impactors. Second, the local response to an edge impact is studied using a finite-difference method based on anisotropic constitutive relations. In addition, experiments have been conducted to compare with each method. Author
- Laminates and Composite Materials
- Jet and Gas Turbine Engines