Evaluation of impact assessment methodologies. Part I: Applied methods

• Published in: Composites. Part B, Engineering Vol. 40; no. 1; pp. 65 - 70
• Main Authors: Kärger, L., Baaran, J., Gunnion, A., Thomson, R.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 2009; Elsevier
• Subjects: B. Damage tolerance; B. Impact behaviour; B. Material degradation; C. Damage mechanics; Exact sciences and technology; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Physics; Solid mechanics; Structural and continuum mechanics; B. Damage tolerance; C. Damage mechanics; B. Impact behaviour; B. Material degradation; Stress analysis; Fracture mechanics; Laminate; Fiber reinforced material; Theoretical study; Mechanical properties; Compressive strength; Modeling; Composite material; Finite element method; Impact strength; Damaging
• ISSN: 1359-8368; 1879-1069
• DOI: 10.1016/j.compositesb.2008.06.003

The present paper is the first part of a comparative evaluation of two methodologies for the analysis of damage in composites. The subject of the investigation is low-velocity impact and residual compression strength of monolithic composite panels. One of the methodologies is implemented in the tool CODAC, which is a stand-alone software that aims to be a fast tool and works with specialized finite element (FE) and material models. The other methodology IDAT parametrically generates the FE models by using MSC.Patran and performs the analysis by the FE code ABAQUS/Standard. The evaluation in regard to accuracy and efficiency is performed by comparing and judging the models and techniques, which are applied for stress analysis, failure detection, material degradation and time integration. Part I of the paper describes the applied methodologies. In Part II, the methodologies are validated by comparing computational results against experimental results.