TY - GEN
T1 - The influence of biaxial stress states on the stiffness of glass textile reinforced cementitious composites
AU - Tysmans, T.
AU - Cuypers, H.
AU - Adriaenssens, S.
AU - Belkassem, B.
AU - Remy, O.
AU - Ramault, C.
PY - 2008
Y1 - 2008
N2 - The application of glass textile reinforced cementitious composites (GTRC) in slender building elements such as plates or shells, can be advantageous over the widely used steel-reinforced concrete. As the glass fibre diameter is three orders of magnitude smaller than the typical steel rebar diameter, very thin and/or freeform plates and shells can be designed. In these two-dimensional elements however, complex biaxial stress states can occur under various load combinations. Up to now, only the uniaxial behaviour of GTRC is studied extensively: GTRC behaves approximately linear in compression, but is highly nonlinear in tension. In this paper, biaxial tensile tests are carried out on cruciform GTRC specimens and observed with the Digital Image Correlation technique. Experimental results are described and compared to a numerical model in the finite element program Abaqus. First results show that the uncoupled stress-strain behaviour in both principle stress directions leads to an underestimation of the biaxial stiffness of GTRC.
AB - The application of glass textile reinforced cementitious composites (GTRC) in slender building elements such as plates or shells, can be advantageous over the widely used steel-reinforced concrete. As the glass fibre diameter is three orders of magnitude smaller than the typical steel rebar diameter, very thin and/or freeform plates and shells can be designed. In these two-dimensional elements however, complex biaxial stress states can occur under various load combinations. Up to now, only the uniaxial behaviour of GTRC is studied extensively: GTRC behaves approximately linear in compression, but is highly nonlinear in tension. In this paper, biaxial tensile tests are carried out on cruciform GTRC specimens and observed with the Digital Image Correlation technique. Experimental results are described and compared to a numerical model in the finite element program Abaqus. First results show that the uncoupled stress-strain behaviour in both principle stress directions leads to an underestimation of the biaxial stiffness of GTRC.
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M3 - Conference contribution
AN - SCOPUS:62849114165
SN - 9781932078817
T3 - Proceedings of the 9th International Conference on Textile Composites - TEXCOMP9: Recent Advances in Textile Composites
SP - 229
EP - 236
BT - Proceedings of the 9th International Conference on Textile Composites - TEXCOMP9
T2 - 9th International Conference on Textile Composites - TEXCOMP9: Recent Advances in Textile Composites
Y2 - 13 October 2008 through 15 October 2008
ER -