Gerald Kress: Catalogue data in Autumn Semester 2017
|Name||Dr. Gerald Kress|
Verbundwerkst. u. Adaptive Strukt.
ETH Zürich, CLA E 31
|Department||Mechanical and Process Engineering|
|151-0353-00L||Mechanics of Composite Materials||4 credits||2V + 1U||G. Kress|
|Abstract||Modelling of stiffness and strength of fiber-reinforced plastics and laminates made thereof as well as simple structures is considered. For free-edge effects and periodic structures numerically efficient FEM approaches for generalized plane strain and unit-cell modelling are explained. Finally, the mechanical interpretation of experimental measurement results is treated.|
|Objective||The objective is to impart understanding of the mechanical response of structures made from anisotropic and heterogeneous fiber-reinforced composite materials with all the peculiarities which are not known from metals. The course shall incite fascination with the multifaceted and exciting modelling questions in this field, providing a basis for research. On the other hand the course provides qualification for composite-materials product development within an industrial environment.|
|Content||1. Introduction and elastic anisotropy|
2. Laminate theory
3. Thick-walled laminates and interlaminar stresses
4. Edge effects at multidirectional laminates
5. Structural problems and simplified finite-element modelling
7. Failure hypotheses and damage prediction
8. Damage progression analysis
9. Static-strength notch-size influence
10. Fatigue Response
11. Design and sizing, sandwich theory
12. Plain-weave non-linear mechanical model
13. Composite materials mechanical testing
|Lecture notes||Script and all other course material is available on MOODLE:|
|Literature||The lecture material is covered by the script and further literature is referenced in there.|
|Prerequisites / Notice||None|
|151-0360-00L||Procedures for the Analysis of Structures||4 credits||2V + 1U||G. Kress|
|Abstract||Basic theories for structure integrity calculations are presented with focus on strength, stability, fatigue and elasto-plastic structural analysis.|
Theories and models for one dimesional and planar structures are presented based on energy theorems.
|Objective||Basic principles applied in structural mechanics. Introduction to the theories of planar structures. Development of an understanding of the relationship between material properties, structural theories and design criteria.|
|Content||1. Basic problem of continuum mechanics and energy principles: structural theories, homogenization theories; finite elements; fracture mechanics.|
2.Structural theories for planar structures and stability: plane-stress, plate theory, buckling of plates (non-linear plate theory).
3.Strength of material theories and material properties: ductile behaviour, plasticity, von Mises, Tresca, principal stress criterion; brittle behaviour; viscoplastic behaviour, creep resistance.
4. Structural design: fatigue and dynamic structural analysis.
|Lecture notes||Script and all other course material available on MOODLE|
|Prerequisites / Notice||none|