Elements of stress

Photoelasticity images of pulsed laser ablation in water and in air were simulated by Finite Element Method. In the paper "Compare transient stress induced in in-air and in-water laser ablation using simulation method", the Von Mises stress distribution in the target is deduced from the simulated images and is compared between the two-ablation regimes. The result confirms that pulse laser ablation in the water can induced a stress about 100 times higher than that induced in ablation in the air.

4p xuanphongdacy09 29-09-2024 3 1   Download

The modulus reduction and damping curves represent the nonlinear behavior of soil under cyclic load. In the literature, those curves were produced from lab tests of soil at particular confining stresses. This study developed a set of parameters that can be used to normalize the modulus reduction and damping curves to be stress-independent.

16p vifilm 24-09-2024 3 2   Download

This paper presents an experimental programme conducted on a number of six reinforced concrete (RC) beams in order to investigate the developments of strain and stress, moment-curvature relationship, failure mode and the ultimate strength on normal sections (USoNS) of this type of basic structural element.

9p viyoko 24-09-2024 2 1   Download

The paper presents a method of controlling thermal cracks by splitting concrete placement horizontally into layers at different levels of a structure, based on the finite element analysis.

7p viyoko 24-09-2024 1 0   Download

By using an extensive three-dimensional discrete element method, we numerically investigate the effects of lightweight particle content on the mechanical strength of the cylindrical aggregates, randomly composed of two different groups of primary particles: light (low stiffness) and heavy (high stiffness), and the stress contribution of the heavy-heavy, light-heavy, and light-light interactions on the mechanical behavior of such aggregates, subjected to the compression test by using a constant downward velocity.

11p vifaye 20-09-2024 2 1   Download

This paper presents a finite element model for dynamic analysis of axial functionally graded (AFG) microbeams subjected to a moving mass. The material properties of the microbeams are considered to vary in the axial direction by a power-law function, and they are evaluated by Mori-Tanaka scheme.

12p vifaye 20-09-2024 3 1   Download

In this paper, we numerically study the mobility of an unsaturated gravitational-granular flow, occurring on a slope-break system that contains two regions: Inclined-upstream and horizontal-downstream areas, by using three-dimensional discrete element simulations.

10p vifaye 20-09-2024 3 1   Download

In civil engineering, distinct mechanical properties and behaviors of structural steel rods necessitate a novel approach to material modeling. This study extends the application of recently proposed strain-hardening laws, originally developed for automotive sheet metals, to several structural steel rods (CB240-T and CB300-T). Standard uniaxial tensile tests are conducted for each examined material to obtain experimental stress strain data.

11p xuanphongdacy06 18-09-2024 3 1   Download

In this work, the free vibration analysis of Timoshenko microbeams made of the Functionally Graded Material (FGM) on the Winkler–Paternak elastic foundation based on the Modified Coupled Stress Theory (MCST) is investigated. Material characteristics of the beam vary throughout the thickness according to the power distribution and are estimated though Mori–Tanaka, Hashin–Shtrikman and Voigt homogenization techniques.

13p dianmotminh02 03-05-2024 9 3   Download

An improved six-node triangular finite element based on a twice-interpolation strategy (TIS) for accurately modeling singular stress fields near crack tips of two-dimensional (2D) cracks in solids is presented. In contrast to the traditional approaches, the approximation functions constructed based on the TIS involve both nodal values and averaged nodal gradients.

9p vidoctorstrange 06-05-2023 7 3   Download

The numerical wedge splitting tests show that in the case of brittle materials, the lower post-failure stress limit defined in the concrete damaged plasticity model resulted in energy consumption for crack propagation exceeding the defined fracture energy (114% higher in the case of a brittleness number of 4.4).

9p guernsey 28-12-2021 12 0   Download

Failure in power transformer can be catastrophic to electric systems, since transformers play a vital role in the power sector. Metallic particles in transformer oil lead to Partial discharge which can result in serious conditions.

8p lucastanguyen 01-06-2020 18 1   Download

The present study is an endeavour to explore the variance in the relationship midst ecology, policing and occupational stress in the police commissionrates of two cities of eastern India.

13p lucastanguyen 01-06-2020 5 2   Download

This study has been made in an attempt to find the structural integrity of the Chashma Nuclear power plant-1 FA skeleton at room temperature. The finite element (FE) analysis has been performed using ANSYS, in orderto determinethe elongationofthe FAskeleton as wellas the locationofmax. stress and stresses developedin axial direction under tensile load of 9800 N or 2 g being the FA handling or lifting load [Y. Zhang et al., Fuel Assembly Design Report, SNERDI, China, 1994].

6p christabelhuynh 30-05-2020 26 2   Download

This paper presents a new hybrid double mixed stress (4f-HMS) model, for the static analysis of isotropic plane structures, in which it is assumed a physically and geometrically linear behaviour.

22p tohitohi 19-05-2020 14 0   Download

An in-house finite element code was utilized to evaluate mode I/II stress intensity factor (SIF) of an edge cracked semi-circular disc subjected to three-point bending.

12p tohitohi 19-05-2020 18 0   Download

The linear elastic analysis of homogeneous, isotropic cracked bodies started in the 1900s. The existence of three dimensional corner point effects in the vicinity of a corner point where a crack front intersects a free surface was investigated in the late 1970s. An approximate solution by Bažant and Estenssoro explained some features of corner point effects but there were various paradoxes and inconsistencies.

10p tohitohi 19-05-2020 19 2   Download

The interphase is a region between fibers and a matrix, which has different properties from the matrix and the fibers, but is dependent on them. Considering the interphase region has a significant effect on the accuracy of obtained residual stresses.

10p tohitohi 19-05-2020 11 0   Download

Mixed mode I/II stress intensity factors of an edge slant-cracked plate under tensile loading were assessed. A two-dimensional finite element analysis was employed using ABAQUS. Various crack lengths and angles were analyzed. The effect of the crack location at the plate edge was also examined. Crack initiation angles were calculated.

10p tohitohi 19-05-2020 19 1   Download

Zirconia/ veneer bi-layered components are extensively used in dental restoration technology to improve resistance of tooth’s surface from decay. The direction of the fracture propagation at the interface of zirconia and veneer is investigated in this paper.

8p tohitohi 19-05-2020 10 1   Download