This paper represents Part II of a two-part study in which a new improved version of the microplane constitutive model for damage-plastic behavior of concrete in 3D is developed. In Part II, an explicit numerical algorithm for model M4 is formulated, the material parameters of model M4 are calibrated by optimum fitting of the basic test data available in the literature, and the model is verifie...

The paper deals with the problem of nonlocal generalization of constitutive models such as microplane model M4 for concrete, in which the yield limits, called stress–strain boundaries, are softening functions of the total strain. Such constitutive models call for a different nonlocal generalization than those for continuum damage mechanics, in which the total strain is reversible, or for plasti...

In order to investigate the failure mechanism and the failure load of quadruple fastenings with bonded anchors a series of numerical investigation was carried out. The studied specimens were bonded anchors in a concrete block and subjected to tensile loading. In the calculations the microplane model with relaxed kinematic constraint was used to simulate the concrete and bond materials. Totally ...

To investigate the influence of joints on stability underground opening, uniaxial compression tests and FE analyses based a microplane damage model for rocks has been conducted rock-like models with circular hole set non-persistent joints. It was found that peak strength Young’s modulus decrease increase in joint continuity factor k, variation them inclination angle β are W or V-shaped curves m...

This study presents research on the effect of Portland cement (PC) replacement with metakaolin mechanical behavior flax textile-reinforced cementitious matrices (TRCM). The composition and in-situ fibres was determined using X-ray diffraction thermogravimetric analysis, while reinforcement efficiency textile TRCMs investigated by three-point bending tests finite element analysis. High amounts P...