1982 · 40 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceComputational MechanicsFinite Element AnalysisMechanical Behavior Of MaterialsDynamic Structural ResponseImpact DynamicsImpact MechanicsStructural MechanicsStructural Response AnalysisWave Propagation In StructuresImpact ResponseImpact Response AnalysisImpact Response Of CompositesLow-velocity ImpactStructural Impact ResponseWave Propagation AnalysisWave Propagation In Composite StructuresWave Propagation In Laminates
The low velocity impact response of graphite-epoxy laminates is investigated theoretically and experimentally. A nine-node isoparametric finite element in conjunction with an empirical contact law was used for the theoretical investigation. Flat laminates subjected to pendulum impact were used for the experimental investigation. Theoretical results are in good agreement with strain gage experimental data. The collective results of the investigation indicate that the theoretical procedure describes the impact response of the laminate up to about 150 in/sec. impact velocity.