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We consider 5D brane world models with broken global 4D Poincar\a'{e}invariance (4D part of the spacetime metric is not conformal to the Minkowskispacetime). The bulk is filled with the negative cosmological constant and maycontain a perfect fluid. In the case of empty bulk (the perfect fluid isabsent), it is shown that one brane solution always has either a physical or acoordinate singularity in the bulk. We cut off these singularities in the caseof compact two brane model and obtain regular exact solutions for both 4DPoincar\a'{e} broken and restored invariance. When the perfect fluid is presentin the bulk, we get the master equation for the metric coefficients in the caseof arbitrary bulk perfect fluid equation of state (EoS) parameters. In twoparticular cases of EoS, we obtain the analytic solutions for thin and thickbranes. First one generalizes the well known Randall-Sundrum model with onebrane to the case of the bulk anisotropic perfect fluid. In the secondsolution, the 4D Poincar\a'{e} invariance is restored. Here, the spacetime goesasymptotically to the anti-de Sitter one far from the thick brane.

Brane world models with bulk perfect fluid and broken 4D Poincare invariance