In reinforced concrete structures, the beam-column connection area has a considerable influence on behavior of structure. The use fiber-reinforced polymer FRP to strengthen connections in Reinforced structure can be one solutions transform this area, thus improving structure, which is achieved through carbon achieve high-strength Investigations have been conducted using finite element modeling....

Various experimental studies have been carried out on glass fiber reinforced concrete (GFRC), but in limited studies, the behavior of this type of concrete is evaluated using finite element method (FEM). In this study an analysis model is presented for predicting energy absorption capacity of glass fiber reinforced self-compacting concrete (GFRCSCC) beams and the results are compared with exper...

This present paper presents a lattice approach to model the influence of cracking on flow in concrete. An earlier mechanical lattice model based on the Voronoi tesselation with a damage-plasticity constitutive model was combined with a new dual lattice of conduit elements for flow analysis. The diffusivity of the conduit elements depends on the crack-opening obtained from the mechanical lattice...

This paper presents a numerical study on the vertical (axial) and lateral (flexure) behavior of CFST (Concrete-Filled Steel Tube) columns with active hoop prestress achieved by bolting together two steel half-tubes. Twelve prototype column specimens differing in prestressing force (three levels) gravity loading ratio (four are analyzed; they selected to represent typical ground mid-rise buildin...

This paper presents a lattice approach to model the influence of cracking on inviscid flow in concrete. A mechanical lattice model based on a damage-plasticity constitutive model was combined with a new dual lattice of conduit elements for flow analysis. The diffusivity of the conduit elements depends on the crack-opening obtained from the mechanical lattice. The coupled lattice model was appli...

Background: Nickel-based superalloys are usually exposed to high static or cyclic loads in non-ambient environment, so a reliable prediction of their mechanical properties, especially plastic deformation, at elevated temperature is essential for improved damage-tolerance assessment of components. Methods: In this paper, plastic deformation in a single-crystal nickel-based superalloy CMSX4 at el...

Age-related cognitive decline and neurodegenerative diseases are a growing challenge for our societies with their aging populations. Accumulation of DNA damage has been proposed to contribute to these impairments, but direct proof that DNA damage results in impaired neuronal plasticity and memory is lacking. Here we take advantage of Ercc1(Δ/-) mutant mice, which are impaired in DNA nucleotide ...

M ultiple sclerosis (MS) is a damaging CNS disease. Because the CNS has inherent properties that prevent the damage from manifesting readily (e.g., redundancy, plasticity, repair), often irreversible damage is not appreciated until very late. Pathologically it is apparent that permanent and irreversible damage occurs very early in MS plaque formation. Treatment of the disease course can therefo...

Neurological function in patients with slowly growing brain tumors can be preserved even after extensive tumor resection. However, the global process of cortical reshaping and cerebral redistribution cannot be understood without taking into account the white matter tracts. The aim of this study was to predict the functional consequences of tumor-induced white matter damage by computer simulatio...

A new brittle-elastoviscoplastic (BEVP) fluid model is presented in this paper. This relatively simple to use, as it contains few material parameters and a fixed-point algorithm effective for solving the coupled system of equations. The combines some existing fundamental features such elasticity, plasticity brittle damage. combination them based on thermodynamics that ensures positivity dissipa...