Previous hydrocarbon explorations in the middle of the Tarim Basin indicate that strike-slip faults play an important role in the development of Ordovician carbonate reservoirs and hydrocarbon accumulation. The SB5 fault in the Tarim Basin was the target of this investigation. An evaluation of the stress in situ was carried out and provided boundary conditions to build a 3D geomechanical model. The distribution and application of present in situ stress in the strike-slip fault were studied. The results show good agreement between the absolute measured stress in situ and the modelled stresses, revealing a different stress regime along the strike-slip fault. The uplift segment belongs to a strike-slip stress state, and other areas belong to a normal fault stress state. The strike-slip fault has a significant influence on the present in situ stress distribution. The direction of the maximum horizontal stress deflects near the fault and tends to be parallel to the fault strike. This work introduces a comprehensive evaluation of the present in situ stress of the fractured carbonate reservoirs controlled by the strike-slip fault system. The present in situ stress direction can clarify the propagation direction of hydraulic fracturing and serve to evaluate the effectiveness of natural fractures.

This paper presents experimental and numerical studies of drop tests of corrugatedcardboard packaging containing different foam cushions. An efficient homogenization modelfor the corrugated cardboard has been developed. In our homogenized model, the corrugatedcardboard is represented by a 2D plate. Instead of using a local constitutive law(relating the strains to the stresses) at each material point, the homogenization givesthe global rigidities (relating the generalized strains to the resultant forces) for theequivalent homogeneous plate. This model was implemented into the FE software ABAQUS. Thefoam behaviour was experimentally determined and modelled using a crushable foam model ofABAQUS. The packages are tested in free fall from a given height on a rigid floor. Thedeceleration of the packed product was recorded using a triaxial accelerometer. Thenumerical results obtained using the FE simulation with the homogenized model agree wellwith the experimental results. We have also shown that the contribution of the corrugatedcardboard box to the shock response could not be neglected in the design of cushioningpackage.