Fall semester 2026-27

Course programme (study module):

Welding and Welded Structures (ZZK)

Department:

Engineering Materials and Welding

Classes:

Prof. Dr Zoran Radaković, Dipl. Ing.

room: 220; Tuesdays from 14:00 to 19:00

List of registered students (attendance and obligations), here (as of oct. 2026)

List of registered students - selected seminary work titles, here (to be updated)

The suggested date of the Test (or early written part of the exam) is Tuesday, Jan. 12, 2027 (in the 14^th week of the Fall semester), at 14:00. The Test time is 3 hours, literature is allowed (including electronic versions, e.g., laptops, ...), but no smartphones or other communication devices.

After the Test, regular class continues with presentations of HW (homeworks) and/or SW (seminary works).

The date/time of the Wriiten Part of the Exam (January Exam period) is scheduled for __ Jan. 2027, at __. The duration is 3 hours, literature is allowed (both in electronic form).

Course programme

Literature (only a list, updates may follow)

Proširena literatura (dodaci; neobavezni sadržaji; spisak pitanja za usmeni deo ispita, ... itd.) postoji u elektronskom obliku (oko 193 MB).

Zatražite od profesora lično. Ponesite medij (fleš memorije) za presnimavanje.

(U ponuđenoj literaturi u eklektronskom obliku, u skripti 1 nedostaju stranice od 105-128, nastavak skripte 1 je u datoteci skripta1b.pdf)

Proširena literatura ... link za download (uskoro)

Link će biti aktivan svega 4 dana od današnjeg (24. oktobar, 2026).

Factors that influence the final score (no prerequisites for taking the exam):

1. Regular attendance (sometimes not required)

2. Completed homework (HW)

3. Presentation of seminary work (SW)

4. Scores achieved from the Test or Written and/or Oral exam

Since there are no requirements for taking the Final exam, however, there is a difference that affects the final grade, due to the assessment of student activity during regular classes. A comparison between the impact of activities during classes and potential inactivity can be seen in the given example HERE.

Proficiency acquired in the subjects:

     Engineering Materials 1; Engineering Materials 2; Basics in Welding

     Strength of Materials; Mechanics; Basics in the Strength of Structures

Results of Exams and Tests

Achieved results of students, after the Test (pre-exam), 12.01.2027. HERE

Signing grades in the index and access to exam papers will take place on Jan.__, 2027, from __:00, in the Office 150.

Results of the Written part of the Exam (January period, Jan __, 2027) are available HERE.

Signing grades is scheduled during the Oral Exam for the January period - on Jan __, 2027, starting at __:00, in Office 150.

Results for the Written part of the Exam (February period, Feb __, 2027) are available HERE

Signing grades is scheduled during the Oral Exam for the February period - on Feb __, 2027, starting at __:00, in Office 150. For an alternative date/time for signing grades and/or the Oral Exam, please contact the professor by email for arrangements.

Results of the June Written Exam, __.06.2027. HERE

Results of the July Written Exam, __.07.2027. HERE

Results of the September Written Exam, __.08.2027. HERE

Results of the October Written Exam, __.09.2027. HERE

NOTES:

Homework presentation schedule:

    Students can present their homework (on the blackboard) on Tuesdays during classes, starting from Tuesday, __.12.2026. until the end of the semester cycle, 12.01.2027.

Schedule of seminar presentations:

    Students may present their seminar papers (on the blackboard, or as a video presentation, e.g. Powerpoint, PDF, ...) on Tuesdays during classes, starting from _.12.2026. until the end of the semester cycle, 12.01.2027.

Students taking the Exam in the June 2027 period:

    Due to a potential absence, the Written part of the PZK Exam - originally scheduled for June __, 2027- is being moved to June __, 2027, starting at __, in Room 148. The oral portion of the Exam and/or singing the grades is tentatively scheduled for June _____ or _____, 2027. The specific time of the Oral Exam or signing of grades will be announced later. Students who did not complete the Homework assignment during the course may submit it via email. Students who did not defend their Seminar Work but wish to submit it electronically via email may expect a grade not higher than 7 (for that Seminar Paper).

Students taking the exam during the October 2027 examination period:

    The Written Exam of DWS - as well as signing of grades for candidates who have already passed - originally scheduled for September __, 2027, is being moved to September __, 2027, starting at __:00, in Room 148. Details regarding the Oral Exam (if applicable) and/or the signing of grades will be announced later. Students who did not complete the Homework assignment during the course may submit it by email. Students who did not defend their Seminar Work but wish to submit it electronically by email may expect a grade no higher than 7 (for that Seminar Work).

Lectures (handouts)

Handouts - parts in electronic form and/or photocopies, upon request.

Foreign literature is available (in English) in electronic form.

Seminary works (SW) - references (PDF parts)

Select a topic for the seminary and use the available literature (PDF).

Prepare the seminary in electronic form that should be presented in the scheduled term (limit to 20 min.).

A list of pre-selected/available topics (link to be activated soon)

1. Residual stresses - definitions and types

2. Residual stresses in welded joints (WJ) - evaluation

3. Residual stresses in WJ - measurements - stress relaxation

4. Residual stresses in WJ - measurements - other and physical methods

5. Residual stresses in WJ - distribution and values

6. Residual stresses in WJ - methods for minimizing

7. Residual deformations in WJ - shrinkage

8. Residual deformations in WJ - distortion

9. Residual deformations in WJ - methods for minimizing

Apart from the listed, candidates may select topics for themselves - under the condition that the topics are related to the course programme and approved by the professor (refer to the upper link: "available topics").

Topics that belong to other areas, not covered in this course, cannot be selected, e.g.

- welding technology

- NDE of WJ

- joining techniques in WJ

- integrity of welded structures

- behaviour of WJ in exploitation

- reliability of WJ

- fracture of welded structures

- repair of welded structures

- quality assurance and control of WJ

Additional resources

Inseparable joints - here (PDF 1.91 MB)

Calculation of welded joints (RB) - here (PDF 673 kB)

A derivation of the formula by Zhuravsky (in Russian) - here (link)

Slides:

to be created