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Plastic Analysis of Structures (BYG530)

The course mainly provides a fundamental understanding of elastic-plastic behavior of materials/structures and principles of plastic collapse and energy dissipation of structures.The course covers the theorems and methods in plastic analysis. And also it discusses few case studies (collision, dropped object analysis and etc) while giving an Introduction to Accidental Limit State design guidelines.

Course description for study year 2022-2023. Please note that changes may occur.

Course code




Credits (ECTS)


Semester tution start


Number of semesters


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Principles of ultimate load design. Plastic capacities of cross sections (i.e. axial force, shear, torsion and bending moment capacities). Formation of plastic hinges and collapse mechanisms. Bound theorems of plastic analysis. Plastic capacities of beams, frames and plates under transverse loading, without and with axial load. Plastic load capacities of bolted/welded joints and tubular joints. Plastic load capacities of dented structural element. Plastic analysis and design case studies (collision, dropped object analysis and etc). Introduction to Accidental Limit State design guidelines, standards and codes. Theory of plasticity and introduction to numerical analysis.
Learning outcome
Upon completion of the course, the student shall have a fundamental understanding of the principles of plastic collapse and energy dissipation of structures. Also students will be able to understand the behaviour of structures due to utimate and accidental loadings. Finally, students shall have skills to analysis and design onshore and offshore structures both in  ultimate limit state and accidental limit state under non-linear material behaviour.
Required prerequisite knowledge
BYG140 Structural Mechanics 1
Form of assessment Weight Duration Marks Aid
Written exam 1/1 3 Hours Letter grades Valid calculator

Coursework requirements
80% of the compulsory assignments (in total 5) must be approved in order to take the written exam.
Course teacher(s)
Head of Department: Tor Henning Hemmingsen
Method of work
On average 3 hours lectures and 1 hour problem solving per week. Compulsory assignments.
Overlapping courses
Course Reduction (SP)
Plastic structural analysis (MOK200_1) 5
Open for
Structural and Mechanical Engineering, Master of Science Degree Programme Exchange programme at Faculty of Science and Technology
Course assessment
By form and /or discussion
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