The authors have reported from experimental investigation that the use of closed stirrups, U-shaped stirrups and rod-shaped reinforcements as shear in reinforced concrete (RC) beams results clear differences internal crack patterns maximum strength. In this study, simulations were performed using a three-dimensional rigid-body spring model, demonstrating behavior observed experiments is mechani...

objectives : this finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (rpds) and the same rpd abutment tooth (not isolated). materials and methods: a kennedy class 1, modification 1 rpd framework was simulated on a 3d model of mandible with three differ...

A systematic study towards understanding the correlation between polarization direction of crustal anisotropy with seismogenic stress field at different locations Shillong-Mikir Plateau and its vicinity in North East India is attempted. We used data from a 17-station broadband seismic network. In our earlier work , anisotropic parameters were determined using ANISOMAT + for 17 stations. this st...

Accurately predicting the breakdown pressure in horizontal sections is essential when designing and optimizing fracturing jobs for wells tight gas reservoirs. Taking Sulige block Ordos Basin as an example, different completion methods combined with indoor rock experience data well data, a new method based on linear regression model proposed. Based Hossain stress field model, this paper establis...

The aim of the work was to study generation reactive oxygen species under experimental stress in mice and their correction. object research were (n=57). In experience «Despair», we studied effect antioxidant Mexidol-Vet® on locomotor activity, duodenal mucosa mice, by leukocytes blood. It found that intramuscular administration a 5 % solution at dose 40 mg/kg/day for 3 days before forced swimmi...

conditional monitoring is prerequisite to prevent severe damage or falling down the trees. problems such as trunk decays, reduces trees resistance against wind and floods. in this study, a mathematical modeling technique is being selected to determine the trees strength against such events. finally, an applicable model for safety factor was created by having numeral (dimensions of crown and tru...

To ascertain whether the , ·elocity of Ice Stream B, \\'est Antarctica, may be controlled by the stres e in its marginal shear zones \ the .. Snake" and the .. Dragon'· ), we undertook a determination of the marginal hear stress in the Dragon near Camp up B by using ice itself as a stress meter. The ob erved marginal shear strain rate of0.14 a I is used to calculate the marginal shear stress fr...

S U M M A R Y We invert for the state of stress in the southern California crust using a catalogue of high quality earthquake focal mechanisms (1981–2010). The stress field is best resolved where seismicity rates are high and sufficient data are available to constrain the stress field across most of the region. From the stress field, we determine the maximum horizontal compressive stress (SHmax...

This paper explores the fracture process based on finite element simulation. Both probabilistic and deterministic methods are employed to model crack initiation, and several commonly used criteria are utilized to predict crack growth. It is concluded that the criteria of maximum tensile stress, maximum normal stress, and maximum Mises stress, as well as the Coulomb-Mohr criterion are able to pr...

shear modulus and damping ratio are important input parameters in dynamic analysis. a series of resonant column tests was carried out on pure clays and sand-clay mixtures prepared at different densities to investigate the effects of aggregate content, confining stress, void ratio and clay plasticity on the maximum shear modulus and minimum damping ratio. test results revealed an increase in the...