Computational Structural Mechanics

Numerical simulation is an indispensable tool for understanding the physics of deforming structures and improving industrial processes with respect to production speed, cost and quality, and reduce the environmental impact. FCC’s software LaStFEM can be used stand-alone or in combination with IPS IBOFlow to perform fluid-structure interaction simulations. The software includes a wide variety of material models and allows analysis of beams, shells and volumes subject to large deformations and mechanical contacts.

Welding simulation: Double fillet welding with dual torches by the gas metal arc welding process (GMAW).
Welding simulation: Double fillet welding with dual torches by the gas metal arc welding process (GMAW).

Details

Finite element modeling allows a wide range of applications to be studied. As a result of this, an in-house finite element software for structural statics and dynamics, LaStFEM, has been developed at FCC. The software includes a wide variety of material models for metals and polymers and allows analysis of beams, shells and volumes subject to large deformations and mechanical contacts. Emphasis is on multi-physics applications such as thermo-mechanical simulations of welding and Fluid-Structure Interactions (FSI).

LaStFEM is implemented in C++ and is designed to work seamlessly with IPS IBOFlow to target highly complex fluid-structure interaction problems including large deformations and free surface flows. We offer tailor-made software  for specific products and processes with superior performance to satisfy the high demands on speed and accuracy from our industrial customers.

Fluid-structure interaction: A rubber beam is submerged in an oil bath and the beam is deformed by the fluid forces. The gray surface is the oil-air interface.
Fluid-structure interaction: A rubber beam is submerged in an oil bath and the beam is deformed by the fluid forces. The gray surface is the oil-air interface.

Application areas

Applications so far involve micro-structure simulation of paper (ISOP), deformation of laminated composites structures, welding and cooling of electronics. In several projects we have a close collaboration with the department of Product and Production Development at Chalmers.

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