The fracture and crack growth of mechanical structures is a usual phenomenon which is due to the application of tensile, cyclic loading or thermal stresses on the structure. So introducing of methods to prevent the crack growth is useful. Afterward, one of the repairing methods of crack growth, consisting to make a hole in the crack tip to elimi-nate the sharp corners, was explained. This metho...

in this study, behavior of pin-loaded glass fiber reinforced with polyethylene laminated composites with different stacking sequence and different dimensions has been observed experimentally and stress analysis was performed using ansys software. the aim is to investigate stresses, failure strength and failure mode of composite laminates containing a pin loaded hole when the material exhibits l...

Objective: Premna integrifolia Linn (Family: Verbenaceae) synonym of Premna serratifolia has tremendous medicinal value. Preliminary pharmacological studies were performed on the methanolic extract of Premna integrifolia (MEPI) bark to investigate neuropharmacological, analgesic, and anti-inflammatory activities. Materials and methods: Neuropharmacology study was done by open field and hole cro...

objective: premna integrifolia linn (family: verbenaceae) synonym of premna serratifolia has tremendous medicinal value. preliminary pharmacological studies were performed on the methanolic extract of premna integrifolia (mepi) bark to investigate neuropharmacological, analgesic, and anti-inflammatory activities. materials and methods: neuropharmacology study was done by open field and hole cro...

The use of blasting cost (BC) prediction to achieve optimal fragmentation is necessary in order to control the adverse consequences of blasting such as fly rock, ground vibration, and air blast in open-pit mines. In this research work, BC is predicted through collecting 146 blasting data from six limestone mines in Iran using the artificial neural networks (ANNs), gene expression programming (G...

Purpose To determine the constituents and origin of the yellow pigment in surgically removed lamellar hole-associated epiretinal proliferation (LHEP) in patients with lamellar macular hole (LMH). Methods This prospective case series comprised nine eyes with LMH in patients aged 41 to 83 years. The presence of LHEP was confirmed by preoperative optical coherence tomography; the distribution of...

This article describes the results of physical modeling deformation and filtration processes in low-permeability reservoir rocks Achimov deposits Urengoy gas condensate field. The experiments were carried out on a unique true Triaxial Independent Loading Test System (TILTS) Institute for Problems Mechanics Russian Academy Sciences. effect non-uniform triaxial stress state character was studied....

A meso-scale damage modelling framework for composite laminates is assessed against multi-axial experimental data obtained from specimens subjected to combined tension/compression and shear loading using a modified Arcan fixture (MAF). Two made unidirectional carbon fibre-reinforced epoxy plies of different thickness are considered investigate the ply effect on behaviour open-hole specimens. In...

Abstract This study investigates the influence of local hybridization Thin and Thick-Ply CFRP laminates on open-hole bearing properties. The area weight unidirectional prepregs used is 40 gsm in case Thin-Ply layers 160 gsm layers. steel a 1.4310 stainless-steel foil with same layer thickness as prepregs. In hybrid area, 90 ∘ were locally replaced by stainless patches. metal content varies from...