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Structural Mechanics II 7.5 credits

Byggnadsmekanik II
Second cycle, B7003B
Course syllabus valid: Autumn 2021 Sp 1 - Present
The version indicates the term and period for which this course syllabus is valid. The most recent version of the course syllabus is shown first.

Education level
Second cycle
Grade scale
G U 3 4 5
Structural Engineering
Subject group (SCB)
Building Technology

Entry requirements

Basic courses in strength of materials and structural mechanics, like B0002B Structural engineering and B7004B Structural Mechanics I.

More information about English language requirements


The selection is based on 20-285 credits

Course Aim
  The aim of the course is that the student should be able to
• calculate critical load (instability) according to first and second order theories for 1-dimensional and 2-dimensional trusses and frames
• calculate deformations and stresses in slabs, plates and shells
• calculate shear forces and stresses of torsion of non-circular cross-sections
• plan and perform calculation tasks, process results and present them in writing (calculation report)

  Critical load (instability) for 1-dimensional elements
• according to first order theory
• with the influence of transverse forces
• stiffness matrix and load vector
• deriving Euler's buckling cases

 Critical load (instability) for 2-dimensional trusses and frames
• according to first and second order theories
• stiffness matrix and load vector
• condensation of stiffness matrix and load vector
• criteria for instability

  Deformations and stresses in
• plates
o plane stress and plane strain conditions
o Airy’s stress function
o boundary conditions
o symmetrical stress distributions
o linear load on half space
o holes
• slabs
o Kirschoff’s slab theory
o Reissner’s slab theory
o energy equations
• shells
o spherical shells
o single curved shells
o saddle surfaces

  Section forces and stresses of torsion for statically determinate and indeterminate elements with non-circular cross-sections
• without prevented warping
o Saint-Venant’s theory
o thin-walled closed cross-sections
• with prevented warping
• shear centre and torsion centre

Each course occasion´s language and form is stated and appear on the course page on Luleå University of Technology's website.
  The students participate in lectures where backgrounds and theories to the course content are derived, presented and exemplified.

 The students practice calculation methodology and theories for the course content
• individually partly in practice sessions in classrooms for simpler structures, partly in the computer room in assignments
• in a group for larger structures in project tasks

  Students practice the ability to plan, implement and report calculation tasks individually in assignments and in groups in project assignments. 

If there is a decision on special educational support, in accordance with the Guideline Student's rights and obligations at Luleå University of Technology, an adapted or alternative form of examination can be provided.
  Background, theories and calculation methodology for simpler structures (a few elements) are examined with a written final exam. Grading scale: U, 3, 4, 5.

Calculation methodology for larger structures is examined through written calculation reports of assignments and project assignments. Grading scale: U, G

Transition terms

Ulf Ohlsson

Literature. Valid from Autumn 2021 Sp 1 (May change until 10 weeks before course start)
Nilsson, M. Nedar, P. & Johansson B. (2020). Plates, slabs and shells. Luleå: Luleå tekniska universitet. Kurskompendium.
Klisinski, M. (1997). Stability of frames. Luleå: Luleå University of Technology. Skrift 1994:02, revision 1997. Kurskompendium.

Course offered by
Department of Civil, Environmental and Natural Resources Engineering

CodeDescriptionGrade scaleCrStatusFrom periodTitle
0001Written examG U 3 4 56.00MandatoryA08
0003AssignmentsU G#1.50MandatoryA21

Study guidance
Study guidance for the course is to be found in our learning platform Canvas before the course starts. Students applying for single subject courses get more information in the Welcome letter. You will find the learning platform via My LTU.

Syllabus established
The plan is established by the Department of Civil and Environmental Engineering 2008-01-22 and is valid from H08.

Last revised
by Assistant Director of Undergraduate Studies Eva Gunneriusson, Department of Civil, Environmental and Natural Resources Engineering 17 Feb 2021