%0 Journal Article
%T Testing of Multi-Axial Strength Behavior of Hard Foams
%A Kolupaev V.A.
%A Bolchoun A.
%A Altenbach H.
%J EPJ Web of Conferences
%D 2010
%I 
%R 10.1051/epjconf/20100616003
%X For modern applications of hard foams an appropriate description of the limit behavior under different stress states are required. So a newstrength hypothesis based on the stress-angle is proposed. In order to obtain the parameters of the model, relevant tests are discussed. The quality of approximation of the experimental data by a limit surface must be evaluated. Some evaluation criteria are discussed and applied to the measured data from the literature. The results of the fitting are presented in the BURZY¡äNSKI-plane and in the p-plane. The presented approach reduces the number of errors in fitting of the limit surface. Certain empiric restrictions help to obtain reliable fitting even for insufficient or unsure measurements.
%U http://dx.doi.org/10.1051/epjconf/20100616003