1. Department of STRUCTURAL ENGINEERING
Faculty of engineering science and technology
NORWEGIAN
UNIVERSITY OF SCIENCE
AND TECHNOLOGY
Materialteknisk institutt
November 2005

2. Personnel & economy 20 professors 3 associate professors
7 adjunct professors
7 post. doc. & research fellows
46 graduate students (“stipendiater”)
5 + 2 administrative staff
10 technical personnel (lab technicians)
University funding (2004): MNOK 25,5
Total expenditures (2004) : MNOK 50,9
November 2005
Department of structural engineering

3. Education
BSc and MSc level (“siv.ing.”) – annually (2005) - 2 basic courses (8 parallels) – a total of 1000 students “siv.ing” courses – a total of 990 students - approx. 40 master degrees
PhD – annually - 8 courses – a total of approx. 30 students (2005) - 7 degrees per year (average for last 10 years)
Continuing education - annually - 1 EVU-course + participation in approx. 5 externally organized courses
November 2005
Department of structural engineering

4. Areas of research Biomechanics
Computational mechanics and program development
Concrete technology
Design of - concrete structures - steel and light metal structures - timber structures
Fracture mechanics and fatigue
Impact and energy absorption
Nanomechanics and MEMS
Wind engineering
November 2005
Department of structural engineering

5. Research groups Structural mechanics (10 + 1)
Steel and light metals – SIMLab (5 + 2)
Concrete (6 + 4)
Bio- and nanomechanics (2)
November 2005
Department of structural engineering

6. our strength is their combination
Our expertise is in
Computational mechanics
Experimental work
FEM analysis
in a well equipped heavy structures lab
our strength is their combination
November 2005
Department of structural engineering

7. Steel structures
Stiffened panels in steel and aluminium Experimental studies on strength of stiffened panels, modellering and design rules (bridges, boats, offshore structures)
High strength steels in structures Implications of use of high strength steels, with less ductility and possible material fracture
Joints and connections Models for joint stiffness and capacity for structural analysis
November 2005
Department of structural engineering

8. Impact and energy absorption
SIMLab
Structural IMpact
Laboratory
November 2005
Department of structural engineering

9. Selected SIMLab activities
Crash-box
Self pierce riveting
Penetration
Bumper system
Material testing and modelling
Castings
November 2005
Department of structural engineering

10. Important test facilities
2060
7100 A B C D E  10 N  
6080
Split Hopkinson Tension Bar
Gas Gun
Kicking machine
November 2005
Department of structural engineering

11. Concrete structures Steel fibre reinforced concrete structures
Material modelling and nonlinear finite element analyses
Historical masonry structures
3D scanning of existing structures
DIANA 8.1
November 2005
Department of structural engineering

12. Fresh and hardening concrete
New part materials
Consistency/viscometry
- measurements/ simulations
Self compacting concrete
Mix design
Rheology of fresh
concrete
The hardening phase
Material properties and
behaviour of structures
Heat development
Strength and stiffness vs time
Temperature- and shrinkage strains
Restraint and stress development
Evaluation of crack risk
Current project:
Bjørvika Submerged tunnel
November 2005
Department of structural engineering

13. Durability of concrete structures
We want to avoid
Determining the chloroid content
Chloroid profile
A core sample from the structure
is ground into thin layers
Chloroid content
Thin layers of concrete are analysed
Cover thickness
Critical chloroid content
Reinforcement
Depth
November 2005
Department of structural engineering

14. Timber structures Modelling, analysis and testing;
in both teaching and research
Fatigue of timber bridges?
NTNU results basis for new European rules
November 2005
Department of structural engineering

15. Vibrations of a pedestrian bridge
FEM modelling
Full scale tests
Pedestrian induced vibrations
Examples: - Lardal (Vestfold) - Millenium (London) - Solferino (Paris)
Laboratory tests
November 2005
Department of structural engineering

16. Earthquake design Submerged tube bridge 1200 m long FEM modellering
Acceleration series (m/s2)
- earthquake (blue)
- structural respons (read)
av tunnel og vann
November 2005
Department of structural engineering

17. Wind engineering Wind induced vibrations of bridges and towers
Gjemnessundet
Description of the wind field
turbulence in time and space
Wind tunnel
model investigations
Structural analysis
calculation of dynamic response
prediction of stability limits
Wind induced
vibrations
of bridges and towers
November 2005
Department of structural engineering

18. Resonance rig for full scale testing of pipelines
Rotating weight
Weight
Tuning distance
Resonance rig for full scale testing of pipelines
Fullscale test of a 6” pipe
November 2005
Department of structural engineering

19. Structural Integrity of Pipelines
NFR funded STORFORSK project ( ): Residual Stress Simulation for Integrity Assessment (RESIA)
Microstructure modelling and
Constitutive equations
Residual Stress simulation
Parameter Identification
Integrity Assessment
crack opening on tension side
LINKpipe - finite element program for nonlinear analysis of thin shells which also accounts for inelastic fracture effects
local buckling on
compressive side
November 2005
Department of structural engineering

20. Biomechanics
Computational biomechanics is an activity of increasing importance.
Presently we address numerical analysis of:
Heart and heart valves, bone and bone/prosthesis systems.
Ultrasound image of left ventricle and the mitral valve
Finite element analysis results of femur and hip prosthesis
November 2005
Department of structural engineering

21. Nano- and material mechanics
The NTNU nanomechanical lab will be established in 2006 at our department
Experimental
November 2005
Department of structural engineering

22. Element free Galerkin method (EFG)
Numerical method particularly well suited for simulation of fracture and crack propagation in brittle materials
Simple to enhance accuracy in case of singularities in the stress field
Easy to couple with finite element method (FEM) in sub-regions
November 2005
Department of structural engineering

23. Development of computational tools
CrossX
FEMplate
Bending,
stretching and
Cross section computations
buckling of plates
FrameIT
Static and dynamic analysis of 3D frame type structures
November 2005