Subject Datasheet
PDF letöltéseI. Tantárgyleírás
1. Alapadatok
1.1 Tantárgy neve
Strength of Materials
1.2 Azonosító (tantárgykód)
BMEEOTMAS41
1.3 Tantárgy jellege
Kontaktórás tanegység
1.4 Óraszámok
| Típus | Óraszám / (nap) |
| Előadás (elmélet) | 2 |
1.5 Tanulmányi teljesítményértékelés (minőségi értékelés) típusa
Vizsga
1.6 Kreditszám
3
1.7 Tárgyfelelős
| név | Bojtárné Dr. Bagi Katalin |
| beosztás | Egyetemi tanár |
| bagi.katalin@emk.bme.hu |
1.8 Tantárgyat gondozó oktatási szervezeti egység
Tartószerkezetek Mechanikája Tanszék
1.9 A tantárgy weblapja
1.10 Az oktatás nyelve
magyar és angol
1.11 Tantárgy típusa
Kötelező az építőmérnöki (BSc) szakon
1.12 Előkövetelmények
Weak prerequisites:
- Structural Analysis I. (BMEEOTMAT43)
- Structural Analysis I. (BMEEOTMAT43)
- Matematics A2a (BMETE90AX02)
1.13 Tantárgyleírás érvényessége
2020. február 5.
2. Célkitűzések és tanulási eredmények
2.1 Célkitűzések
The subject first introduces the two most important energy theorems of strength of materials, the theorem of potential energy and the theorem of complementary potential energy. Using these theorems the equilibrium and compatibility states of elastic beams can be determined. Second, based on the concept of potential energy, the main methods of stability analysis (energy method; static method) and the fundamentals of buckling analysis of compressed columns are introduced.
2.2 Tanulási eredmények
A tantárgy sikeres teljesítése utána a hallgató
A. Tudás
- knows the stationarity theorem of potential energy and the conditions of application
- knows the minimum theorem of complementary potential energy and the conditions of application
- knows the differential equation of the elastic curve
- knows the energy method of stability analysis and the conditions of application
- knows the static method of stability analysis and the conditions of application
- knows the concept of slenderness limit
- knows the method to determine the critical buckling stress for slender columns
- knows the method to determine the critical buckling stress for short columns
B. Képesség
- formulates the potential energy of elastic beams based on the characteristic displacement functions,
- formulates the complementary potential energy of elastic beams based on the characteristic internal force functions,
- determines the deformed shape of bar structures with broken axis line approximately,
- is able to perform stability analysis on structural models consisting of rigid bodies and springs, and to determine the critical load,
- determines the critical buckling stress in slender and short bars under centric compression,
- is able to express his/her thoughts in an organized way in oral and written communication,
- is able to solve numerical problems reliably and accurately,
C. Attitűd
- aims at learning and routinely using tools required for solving strength of materials problems,
- aims at accurate and flawless problem solving
D. Önállóság és felelősség
- is able to individually think over strength of materials problems and to solve them using the given resources,
- is open to valid criticism.
2.3 Oktatási módszertan
Lectures, numerical practices for large groups, oral and written communication, use of IT devices and techniques, optional practice problems solved individually and in teams (home practice), work management techniques.
2.4 Részletes tárgyprogram
| Week | Topics of lectures |
| 1. | Work theorems (repetition) |
| 2. | Stationarity theorem of potential energy |
| 3. | Minimum theorem of complementary potential energy |
| 4. | Application of energy theorems, problem solving |
| 5. | Partial summary |
| 6. | Differential equation of the elastic curve |
| 7. | Application of energy theorems for static loads |
| 8. | Application of energy theorems for kinematic loads |
| 9. | Partial summary |
| 10. | Fundamental concepts of stability analysis |
| 11. | Basic problems of stability analysis |
| 12. | Fundamentals of buckling analysis of compressed bars |
| 13. | Buckling analysis of compressed bars, problem solving |
| 14. | Summary |
A félév közbeni munkaszüneti napok miatt a program csak tájékoztató jellegű, a pontos időpontokat a tárgy honlapján elérhető "Részletes féléves ütemterv" tartalmazza.
2.5 Tanulástámogató anyagok
Books:
- Kaliszky S. – Kurutzné Kovács M. – Szilágyi Gy.: Szilárdságtan, 2000;
- Hibbeler: Mechanics of Materials. Pearson, 2011;
- Gere – Goodno: Mechanics of Materials. Cengage Learning, 2015,
- Beer – Johnston: Mechanics of materials. McGraw-Hill, 2009
2.6 Egyéb tudnivalók
- Attendance at lectures is compulsory.
- Students failing to prove to have attended at least 70% of the lectures based on their records of absences cannot obtain registry other than "Megtagadva" or "Nem teljesítette".
- Students attending checks must not communicate with others during the check without explicit permission, and must not hold any electronic or other communication device switched on.
- Students who have obtained a valid signature and have registered for a course other than examination course cannot lose their signature and eligibility for exam, but the final results are to be computed based on the new test results.
2.7 Konzultációs lehetőségek
The instructors are available for consultation during their office hours, as advertised on the department website. Special appointments can be requested via e-mail: bagi.katalin@epito.bme.hu.
Jelen TAD az alábbi félévre érvényes:
2024/2025 semester I
II. Tárgykövetelmények
3. A tanulmányi teljesítmény ellenőrzése és értékelése
3.1 Általános szabályok
- Evaluation of learning outcomes described in Section 2.2. is based on six quiz checks, and an oral exam in the examination period.
- The duration of each quiz test is 22 minutes.
- The best two out of the first three quiz checks are to be considered with equal weights. The best two out of the second three quiz checks are to be considered with equal weights.
- No requirements are made on the successfulness of the tests.
- The dates of the checks can be found in the "Detailed semester schedule" on the website of the subject.
3.2 Teljesítményértékelési módszerek
| Evaluation form | Abbreviation | Assessed learning outcomes |
| 1st quiz test (summarizing check) | ZH1 | A3, B1, B2, B8-9, C1-2 |
| 2nd quiz test (summarizing check) | ZH2 | A3, B5, B8-9, C1-2 |
| 3rd quiz test (summarizing check) | ZH3 | A1, B8-9, C1-2 |
| 4th quiz test (summarizing check) | ZH4 | A2, B8-9, C1-2 |
| 5th quiz test (summarizing check) | ZH5 | B1-2, B8-9, C1-2 |
| 6th quiz test (summarizing check) | ZH6 | A4-8, B6-7, B8-9, C1-2 |
| Oral exam (summarizing check) | V | A.1-A.8; B.1-B.7; C.1-C.2; D.1-D.2 |
A szorgalmi időszakban tartott értékelések pontos idejét, a házi feladatok ki- és beadási határidejét a "Részletes féléves ütemterv" tartalmazza, mely elérhető a tárgy honlapján.
3.3 Teljesítményértékelések részaránya a minősítésben
| Abbreviation | Score |
| CT1 | 12,5% |
| CT2 | 12,5% |
| CT3 | 12,5% |
| CT4 | 12,5% |
| CT5 | 12,5% |
| CT6 | 12,5% |
| V | 50% |
| Sum | 100% |
3.4 Az aláírás megszerzésének feltétele, az aláírás érvényessége
- Signature and eligibility for the exam is granted if an average of 50% or more is reached in the four eligible essays (the two best of the first three and the two best of the second three).
- A signature obtained previously will remain valid at a re-registering for the subject, but the new results are to be considered nevertheless.
3.5 Érdemjegy megállapítása
- In the case of complying with the requirements on attendance the results are determined as follows.
- The semester performance is determined by the results of the best two out of the first three quiz tests and the best two out of the last three quiz tests.
- Exam below 50% is regarded unsuccessful, the exam mark is "Failed" (regardless of the score attained in the semester).
- In the case of a successful exam the final result is computed by the weighted average A of the best two mid-term tests and the exam as in section 3.3.:
| Grade | Points (A) |
| excellent (5) | 80%≤A |
| good (4) | 70%≤A<80% |
| satisfactory (3) | 60%≤A<70% |
| passed (2) | 50%≤A<60% |
| failed (1) | A<50% |
3.6 Javítás és pótlás
- The quiz tests cannot be retaken in this subject.
3.7 A tantárgy elvégzéséhez szükséges tanulmányi munka
| Activity | Hours/semester |
| contact lessons | 14×2=28 |
| preparation for lessons during the semester | 6×3=18 |
| preparation for the checks | 6×4=24 |
| preparation for the exam | 20 |
| Sum | 90 |
3.8 A tárgykövetelmények érvényessége
2024. szeptember 5.
Jelen TAD az alábbi félévre érvényes:
2024/2025 semester I