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| Detailinformationen |
| Quellcurriculum |
Masterstudium Polymer Engineering and Science 2025W |
| Lernergebnisse |
Kompetenzen |
| (*)Students are able to analyze and assess damage behavior and failure of damage tolerant lightweight structures under operational loads (during service). They are proficient in analyzing simple structural components with different classical design concepts (e.g. Safe-Life, Fail-Safe) and are able to examine the fatigue behavior in such a way, that damage initiation and growth do not lead to a complete loss of structural integrity (failure).
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| Fertigkeiten |
Kenntnisse |
(*)Students are able to
- explain and compare the basic mechanisms of damage initiation in metals and fiber composites (k4),
- analyze and assess simple components and their fatigue behavior regarding damage tolerance, life-time and crack-growth (k5),
- interpret and apply common fatigue strength diagrams and extract relevant parameters (k2,k3),
- differentiate and distinguish between stress concentrations and stress intensities and how each affects fatigue behavior (k3),
- determine and assess local stresses due to plasticity (k5).
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(*)- Material behavior under (1) quasi-static monotonic and (2) quasi-static cyclic (fatigue) loading
- For cyclic loading, analysis methods for (a) fatigue damage initiation and (b) fatigue damage growth
- Particular damage modes and mechanisms for (A) homogeneous isotropic (e.g. metals) and (B) heterogeneous orthotropic (e.g. fiber reinforced laminated composites) materials
- For the case of composite materials, (i) intra-laminar and (ii) inter-laminar (delamination) damage
- (j) Analytical methods and (jj) particular aspects of numerical implementation by means of Finite Element Analysis (FEA)
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| Beurteilungskriterien |
(*)Attendance (participation), written exam (4 examples, working time 90 minutes) and oral exam
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| Lehrmethoden |
(*)Slide presentation. The presentation slides are provided for download as lecture notes. More detailed explanations and calculation examples are carried out at the black board.
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| Abhaltungssprache |
English (on demand) or German |
| Literatur |
(*)D. Radaj and M. Vormwald, Ermüdungsfestigkeit - Grundlagen für Ingenieure, Springer-Verlag Berlin Heidelberg, 3rd Edition, 2007; J. Schijve, Fatigue of Structures and Materials, Springer-Verlag Dordrecht, 2nd Edition, 2009; K.L Reifsnider and S.W. Case, Damage Tolerance and Durability of Material Systems, Wiley, 2002
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| Lehrinhalte wechselnd? |
Nein |
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