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Influence of convergence angle of tooth preparation on the fracture resistance of Y-TZP-based all-ceramic restorations
(2013-03-01)
Objective: To investigate the influence of the convergence angle of tooth preparation on the fracture load of Y-TZP-based ceramic (YZ-Vita YZ) substructure (SB) veneered with a feldspathic porcelain (VM9-Vita VM9). Methods: ...
Friction Correction of Austenite Flow Stress Curves Determined under Axisymmetric Compression Conditions
(Springer, 2019-03)
The experimental flow stress curves of structural steels obtained from axisymmetric compression tests conducted under hot-working conditions very often include the frictional effects present at the tool/specimen interface. ...
Relaxation in Yield Stress Systems through Elastically Interacting Activated Events
(American Physical Society, 2014-12)
We study consequences of long-range elasticity in thermally assisted dynamics of yield stress materials. Within a two-dimensional mesoscopic model we calculate the mean-square displacement and the dynamical structure factor ...
Optimization procedure for the strut-and-tie method considering the stiffness of concrete in compression
(2023)
An optimization procedure is proposed for finding an optimal truss for the Strut-and-Tie method used to design the steel reinforcement in concrete structural elements. The basis of the procedure is to maximize the global ...
Numerical analysis of the influence of film thickness and properties on the stress state of thin film-coated piston rings under contact loads
In this work, a series of finite element analyses was conducted to analyze the stresses in thin film-coated piston rings under contact loads. The actual normal and tangential pressure observed during a complete four-stroke ...
Compressive strength of masonry constructed with high strength concrete blocks
(IBRACON - Instituto Brasileiro do Concreto, 2017)
Although the use of high strength concrete blocks for the construction of tall buildings is becoming common in Brazil, their mechanical properties and behavior are not fully understood. The literature shows a gap in ...
Numerical modeling of uneven thermoplastic polymers behaviour using experimental stress-strain data and pressure dependent von Mises yield criteria to improve design practices
(2011)
Classical plasticity theories and yield criteria for ductile materials, such as Tresca and von Mises original formulations predict that yielding is independent on the hydrostatic stress state (pressure), which means that ...
Numerical modeling of uneven thermoplastic polymers behaviour using experimental stress-strain data and pressure dependent von Mises yield criteria to improve design practices
(2011)
Classical plasticity theories and yield criteria for ductile materials, such as Tresca and von Mises original formulations predict that yielding is independent on the hydrostatic stress state (pressure), which means that ...