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Structural rehabilitation using high damping rubber bearing (HDRB)
High damping rubber bearings show highly nonlinear stress-strain behaviour. Deformation-history integral (DHI) model which can estimate small strain stiffness degradation and nonlinear plasticity via a relatively simple ...
Numerical modeling of thermo-mechanical failure processes in granitic rock with polygonal finite elements
This paper considers numerical modeling of intensive heating induced thermo- mechanical failure processes in granitic rock. For this end, a numerical method based on polygonal finite elements and a damage-plasticity model ...
Weakening of tensile strength of granitic rock by HV-HF-AC actuation of piezoelectric properties of Quartz : a 3D numerical study
(IOP Publishing, 2023)
High-voltage and high-frequency alternating current (HV-HF-AC) excitation of piezoelectric properties of Quartz is a potential method to induce cracks in granite. This was recently shown in a numerical feasibility study ...
An insight into the effect of rough surfaces and contact orientation on the fretting characteristics of quenched and tempered steel
The effect of a rough, textured surface and contact orientations on the fretting behavior of self-mated martensitic 34CrNiMo6 +QT steel was examined via a large annular flat-on-flat contact. A friction study accompanied ...
Blending eco-efficient calcium sulfoaluminate belite ferrite cement to enhance the physico–mechanical properties of Portland cement paste cured in refrigerated and natural winter conditions
The acceleration impacts of calcium sulfoaluminate belite ferrite (CSABF)—a cement produced from industrial side streams—on the hydration and strength development of Portland cement (PC) paste cured at −5 °C with and without ...
Bond and re-anchoring tests of post-tensioned steel tendon in case of strand failure inside cement grouting with voids
Grouted tendons are commonly used in construction of bridges and other post-tensioned structures. The quality of grouting is essential to provide the durability and robustness of the structure. In this paper, the bond and ...
A numerical analysis of weakening of a granitic rock by piezoelectric excitation of quartz
(Austrian Society for Geomechanics, 2023)
This work presents a numerical model to simulate intergranular damage in a granitic rock by oscillating piezoelectric excitation of quartz dispersed in the structure. The damage evolution at grain boundaries was assumed ...
Modelling of fatigue damage in granitic rock by piezoelectric effect in quartz phase due to alternating current excitation
This paper considers numerical modelling of hypothetical fatigue damage in granitic rock by alternating current (AC) excitation of piezoelectric properties of Quartz. For this end, a numerical method consisting of a rock ...