Abstract: Three-dimensional (3D) failure criteria based on the Hoek–Brown (HB) criterion and a general Lode dependence for rocks were proposed in this paper. The proposed failure criteria inherited the compression meridian from the ...

Abstract: The collapse load of a reinforced concrete square spread footing under column load is derived by using the theory of plasticity. Several upper bound solutions corresponding to different yield line patterns are obtained. ...

Abstract: A theoretical solution for the punching shear strength of a concrete slab is presented. The problem is treated as a three‐dimensional axisymmetrical one, the material being assumed to be rigid‐plastic. A failure criterion ...

Abstract: Site investigation through boreholes, such as vane shear tests or cone penetration tests, provides an effective means to assess the performance of geotechnical sites. Boreholes should be located such that they provide a ...

Abstract: Formulas to predict the ultimate shear strength of reinforced concrete deep beams are proposed. The derived equations are based on limit analysis theorems and associated flow rule. The lowest upper‐bound solution is achieved ...

Abstract: When evaluating the shift quality of a manual transmission automotive, the subjective evaluation method is fuzzy, and the objective evaluation method with dynamic parameters as indexes is complex. To solve the problem of ...

Abstract: In this study, bio-modified coconut fiber as a renewable and eco-friendly material was used to enhance the damping properties of cement mortar and reduce the adverse effects of vibration. The chemical bonds, relative ...