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Analysis of the Mechanical Response of Impact Loaded Composite Sandwich Structures with Focus on Foam Core Shear Failure.
Annotation
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Berlin :
Logos Verlag Berlin,
2014.
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| Colección: | Science-Report Aus Dem Faserinstitut Bremen Ser.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Intro; 1 Introduction; 1.1 Motivation; 1.2 Objective; 1.3 Thesis structure; 2 State of the art of composite sandwich technology; 2.1 Application of composite sandwich structures; 2.2 Materials and manufacturing; 2.3 Fundamentals of composite sandwich theory; 2.3.1 Localized loads on sandwich beams; 2.3.2 Failure modes of sandwich beams; 2.3.3 Failure mode maps; 2.4 Chapter summary; 3 Impact response of composite sandwich structures; 3.1 Definitions; 3.2 Literature review; 3.3 Classification of the structural impact response; 3.4 Contact behavior and indentation of sandwich panels.
- 3.5 Sandwich failure modes during impact3.6 Chapter summary; 4 Experimental investigation of the impact response; 4.1 Test matrix and setup; 4.2 Test results at room temperature; 4.3 Test results at low temperatures; 4.4 Classification of damage types; 4.5 Comparison with analytical model; 4.6 Chapter summary; 5 Numerical simulation of impact on CFRP foam core sandwich structures; 5.1 General aspects; 5.1.1 Basic equations and explicit time integration scheme; 5.1.2 Modeling approach; 5.1.3 Thermal effects; 5.2 Modeling of the CFRP face sheets; 5.2.1 Mechanical behavior of CFRP.
- 5.2.2 Material properties and strain rate sensitivity5.2.3 Experiments; 5.2.4 Simulation with one element across the thickness; 5.2.5 Simulation with one element per ply; 5.3 Modeling of the foam core; 5.3.1 Mechanical behavior and applied material model; 5.3.2 Experiments; 5.4 Modeling of the sandwich structure; 5.4.1 Interface crack growth; 5.4.2 Static indentation of sandwich panels; 5.4.3 Thermal loads and strain rates; 5.5 Simulation of low velocity impact; 5.5.1 Impact response; 5.5.2 Damage size and impact failure mode; 5.6 Chapter summary; 6 Sandwich failure mode parameters.
- 6.1 Approach6.2 Thermal loads; 6.3 Boundary conditions; 6.4 Impactor geometry and velocity; 6.5 Material properties of face sheet and core; 6.6 Chapter summary; 7 Concluding remarks; 7.1 Summary of performed work; 7.2 Limitations and implications; 7.3 Future work.