Little is known about the fracture behavior of such porous, anisotropic composites in bending. We previously investigated the role of the polymer phase. In order to better understand the mechanical response of PCL-ceramic composites, we performed a bending test in situ in a X-Ray tomograph. The polymer phase is too light (not enough absorption) to appear on the X-ray images, but the goal here is to understand the role of the ceramic microstructural feature. Fig. shows a 3D reconstruction of the sample, where the notch and the crack and its path can clearly be identified.