653-0944/01 – Degradation processes and lifetime prediction of structural materials (DPaPZ)
| Gurantor department | Department of Materials Engineering and Recycling | Credits | 10 |
| Subject guarantor | prof. Ing. Bohumír Strnadel, DrSc. | Subject version guarantor | prof. Ing. Bohumír Strnadel, DrSc. |
| Study level | postgraduate | Requirement | Choice-compulsory type B |
| Year | | Semester | winter + summer |
| | Study language | Czech |
| Year of introduction | 2022/2023 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
The aim of this course is to understand the relationship between localized damage and moment of structure failure.
Teaching methods
Lectures
Individual consultations
Summary
The course is directed on degradation processes evaluation in structural materials. Namely analyses of microstructural conditions of brittle and ductile fracture, fatigue damage, creep, corrosion damage, stress corrosion cracking and fundamental mechanisms of wear in functional surfaces are included into course. These analyses continue by explanation how temperature, way of loading and environmental parameters affect origin of limited stage finalized by fracture and by loss of the basic function of material, it is transfer of stress-strain field.
These methods are applied on metals, ceramics, polymers, and on basic structures of composites. Special attention is dedicated to the effects of size and shape of structural part on origin of limited stage and to methods of resistance evaluation of structural parts influenced by negative effects of degradation processes. The logical closure of the course is the presentation of structure safety estimation in the phase of design, and under operational decision in technical practice.
Compulsory literature:
Recommended literature:
LALANNE, C. Fatigue Damage, Wiley, Hoboken, NJ, USA 1999.
HULL, D. Fractography, Cambridge University Press, Cambridge UK 1999.
Way of continuous check of knowledge in the course of semester
Ústní zkouška s písemnou přípravou
E-learning
Other requirements
There are no further special requirements.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Introduction – principal relationships between structure and mechanical characteristics.
Changes in behaviors of materials caused by degradation processes.
The basic group of materials and degradation processes.
Fracture caused by overloading under uniaxial and multiaxial stress.
Conditions of low energy brittle fracture.
Conditions of high energy ductile fracture.
Mechanisms of initiation and propagation of fatigue damage.
Fatigue damage of structural parts under multiaxial stress-states.
Mechanisms of creep damage.
Creep fracture and parameters affecting it.
Mechanisms of stress corrosion fracture and hydrogen embrittlement.
Basic mechanisms of wear in functional surfaces.
Combinational effects of degradation processes.
Impacts of degradation processes on reliability of structural parts.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.