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Calibration of a Nonlinear Elastic Composite with Goal-Oriented Error Control Using a Sub-Scale Modeling Approach

Håkan Johansson (Institutionen för konstruktionsteknik, Datorintegrerad konstruktionsmekanik) ; Fredrik Larsson (Institutionen för konstruktionsteknik, Datorintegrerad konstruktionsmekanik) ; Kenneth Runesson (Institutionen för konstruktionsteknik, Datorintegrerad konstruktionsmekanik)
Proc. of Second International Conference on Multiscale Materials Modeling, MMM-2, October 11-15, 2004 Vol. 1 (2004), 1, p. 466-468.
[Konferensbidrag, övrigt]

A recently proposed technique for the calibration of constitutive models is based on the optimization problem expressed such that the state equation is incorporated via an additional costate field. A distinct advantage is that error control is formally straightforward. This technique is applied to calibration of a nonlinear elastic composite using a meso-macro-transition approach, whereby the RVE is analyzed using (in this case) Dirichlet boundary conditions. The numerical results show the effectivity of the error prediction.

Nyckelord: parameter identification, a posteriori error control, calibration, multiscale

Denna post skapades 2006-09-28. Senast ändrad 2015-06-12.
CPL Pubid: 1849


Institutioner (Chalmers)

Institutionen för konstruktionsteknik, Datorintegrerad konstruktionsmekanik (1900-2004)


Teknisk mekanik

Chalmers infrastruktur