Lars-Erik Lindgren
Lars-Erik Lindgren

Lars-Erik Lindgren

Professor
Luleå University of Technology
Solid Mechanics
Mechanics of Solid Materials
Department of Engineering Sciences and Mathematics
Lars-Erik.Lindgren@ltu.se
+46 (0)920 491306
E875 Luleå

Research

Simulation of chains of manufacturing processes. Development of physically based constitutive models. The latter are coupled with models for the microstructure evolution.

Education

The finite element method, basic course for linear, static and dynamic problems in heat conduction and analysis of deformations.
The finite element method, advanced course that extends the basic course to non-linear problems. It has is limited to simulation of forming. It can be extended with the manufacturing processes; welding, machining and powder compaction.  The focus is on the modelling issues and less on the fundamental theory.
The finite element method for nonlinear heat conduction. Self study course about the fundamental theory and vfinite element formulation of nonlinear heat conduction.
The finite element method for nonlinear deformations. The fundamental theory and finite element formulation for elasto-plastic problems with large deformations and strains.
Methods of Weighted Residuals (part in the course  Multiphysics, modelling and simulations). Fundamental theory for finite element formulations of partial differential equations.
Material mechanics. Plasticity and creep. The course is a meeting point for Engineering Materials and Continuum Mechanics. The basic deformation mechanicsms for plasticity and creep are treated together with constitutive models.

Publications

Article in journal

A numerical model for simulating the effect of strain rate on eutectic band thickness (2020)

Draxler. J, Åkerström. P, Edberg. J, Lindgren. L, Singh. S, Raza. T, et al.
Welding in the World
Article in journal

Electromagnetic wave-based analysis of laser–particle interactions in directed energy deposition additive manufacturing (2020)

Zhang. Z, Ge. P, Li. T, Lindgren. L, Liu. W, Zhao. G, et al.
Additive Manufacturing, Vol. 34
Article in journal

History Reduction by Lumping for Time-Efficient Simulation of Additive Manufacturing (2020)

Malmelöv. A, Lundbäck. A, Lindgren. L
Metals, Vol. 10, nr. 1
Article in journal

Heat transfer in cold rolling process of AA8015 alloy (2019)

a case study of 2-D FE simulation of coupled thermo-mechanical modeling
Olaogun. O, Edberg. J, Lindgren. L, Oluwole. O, Akinlabi. E
The International Journal of Advanced Manufacturing Technology, Vol. 100, nr. 9-12, s. 2617-2627
Article in journal

Influence of prior deformation in austenite on the martensite formation in a low-alloyed carbon steel (2019)

Gyhlesten Back. J, Lindgren. L
Materials Science Forum, Vol. 941, s. 95-99
Article in journal

Modeling and simulation of weld solidification cracking part I (2019)

A pore-based crack criterion
Draxler. J, Edberg. J, Andersson. J, Lindgren. L
Welding in the World, Vol. 63, nr. 5, s. 1489-1502
Article in journal

Modeling and simulation of weld solidification cracking part II (2019)

A model for estimation of grain boundary liquid pressure in a columnar dendritic microstructure
Draxler. J, Edberg. J, Andersson. J, Lindgren. L
Welding in the World, Vol. 63, nr. 5, s. 1503-1519
Article in journal

Modeling and simulation of weld solidification cracking part III (2019)

Simulation of solidification cracking in Varestraint tests of alloy 718
Draxler. J, Edberg. J, Andersson. J, Lindgren. L
Welding in the World, Vol. 63, nr. 6, s. 1883-1901
Article in journal

Modeling of thermal stresses in low alloy steels (2019)

Lindgren. L, Edberg. J, Åkerström. P, Zhang. Z
Journal of thermal stresses, Vol. 42, nr. 6, s. 725-743