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Before choosing course

The course provides the foundation of constitutive modeling of deformable solid materials, where elastic and inelastic material responses at small and finite strains are addressed. Constitutive descriptions are developed within well-known continuum mechanical frameworks and their numerical implementation into FE software is detailed.

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* Retrieved from Course syllabus FSE3131 (Autumn 2019–)

Content and learning outcomes

Course contents

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Intended learning outcomes

The course provides the foundation of constitutive modeling of deformable solid materials, where elastic and inelastic material responses at small and finite strains are addressed. Constitutive descriptions are developed within well-known continuum mechanical frameworks and their numerical implementation into FE software is detailed.

After the course, the participants should be able to

  1. Understand the continuum mechanical basis of constitutive modeling of deformable solid materials
  2. Model a particular engineering problems by selecting appropriate constitutive modeling assumptions
  3. Understand the purpose, function, implication and limitation of constitutive modeling
  4. Learn how to implement a constitutive model into FE software
  5. Apply tools to verify and validate constitutive models and their implementation
  6. Combine and integrate different solution strategies to address a constitutive modeling problem 
  7. Extract key constitutive phenomena from experimental observations and turn them into a constitute model.
  8. Understand and discuss the published literature in the field of solid mechanics constitutive modeling.

Course Disposition

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Literature and preparations

Specific prerequisites

A course in solid mechanics at the basic level is required. It is strongly recommended that the course participants also have some additional courses in solid mechanics such as material mechanics, theory of elasticity, theory of plasticity or continuum mechanics at the advanced level.

Recommended prerequisites

Basic course in solid mechanics (for instance SE1010, SE1020 or SE1055 or similar) and continuum/ material mechanics course (for instance SE2126 or similar) and a Finite Element (FE) course (for instance SE1025 or similar).

Equipment

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Literature

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Examination and completion

If the course is discontinued, students may request to be examined during the following two academic years.

Grading scale

G

Examination

  • LAB1 - Laboratory work, 6,0 hp, betygsskala: P, F
  • TEN1 - Written exam, 6,0 hp, betygsskala: P, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

Exam  (TEN1; 6.0p)

The student must register his/her participation in the exam at least two weeks ahead.

The exam contains two parts.

Part 1: During part 1 the student has to answer a couple of theory questions that directly relate to the material presented during the lectures. This part takes two hours and is graded by pass or fail.

Part 2: During part 2 selective papers in the field of constitutive modeling are discussed in groups of about 5 students. During this task the student's ability to understand and judge the related literature body is assessed. This part takes about one hour and is graded by pass or fail.

ln order to pass the exam, part 1 and part 2 have to be passed.

Laboratory work (LAB1; 6.0p)

The computational laboratory work takes place in “Solid Mechanics track students’ room” and is carried out by groups of two or three students. Different constitutive models are implemented into FEAP and an example roadmap (theory-> pseudocode->FORTRAN code->verification protocol) is detailed during the lectures. At the beginning of the course material for self-studying problems in FEAP is distributed, such that the students can get familiar with FEAP software. In order to pass the computational laboratory tasks the student group has to demonstrate the ability to implement the specific constitutive task and pass the particular verification protocol.

Comp. lab1: One dimensional constitutive models (linear/non-linear spring and dashpot device)

Comp. lab2: Saint-Venant Kirchhof model

Comp. lab3: Quasi-incompressible neoHookean model

Comp. lab4: Quasi-incompressible HGO and GOH model

Comp. lab5: Hyper-viscoelasticity (Prony series expansion of neoHookean model)

Comp. lab6: J2 plasticity model

Comp. lab7: Cohesive zone models (isotropic and anisotropic)

Comp. lab8: Microfiber model

Other requirements for final grade

In order to achieve the course grade pass, the student must have achieved the grade pass on both LAB1 and TEN1 below.

Opportunity to complete the requirements via supplementary examination

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Opportunity to raise an approved grade via renewed examination

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Examiner

Profile picture Christian Gasser

Ethical approach

  • All members of a group are responsible for the group's work.
  • In any assessment, every student shall honestly disclose any help received and sources used.
  • In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Further information

Course web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web FSE3131

Offered by

SCI/Solid Mechanics

Main field of study

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Education cycle

Third cycle

Add-on studies

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Contact

Per-Lennart Larsson

Supplementary information

For information on course offer, contact program responsible,
Per-Lennart Larsson, plla@kth.se

Postgraduate course

Postgraduate courses at SCI/Solid Mechanics