nasser abootaleb; Mona Alizadeh Giashi
Volume 1, Issue 1 , June 2019, , Pages 10-18
Abstract
Failure and buckling in shell structures, including silos, can be created for various reasons such as distortion, defects created during construction, defects created during operation, or environmental factors, etc. Silos can be subjected to a variety of lateral and axial loads, but since they are in ...
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Failure and buckling in shell structures, including silos, can be created for various reasons such as distortion, defects created during construction, defects created during operation, or environmental factors, etc. Silos can be subjected to a variety of lateral and axial loads, but since they are in fact affected by the combination of these loads, silos behave under the influence of composite loads. The silos in this research are hot-rolled and located on the ground. The variables of this research are type and scope of defect. Silos are also evaluated in semi-filled and semi-solid state. The model silos were analyzed in ANSYS software. The radial radial neural network RBF was used to predict the buckling capacity of the cylindrical shells. The results of this study indicate that artificial neural networks are a good tool for predicting buckling capacity of silos with defects.
nasser abootaleb
Volume 1, Issue 1 , June 2019, , Pages 19-38
Abstract
One of the biggest environmental problems and problems in the world can be recycled and the reuse of worn plastics, which, due to their indissolubility, remains in the environment, and their disintegration may last more than a hundred years. One of the most widely used plastic molds, PETs, or polyethylene ...
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One of the biggest environmental problems and problems in the world can be recycled and the reuse of worn plastics, which, due to their indissolubility, remains in the environment, and their disintegration may last more than a hundred years. One of the most widely used plastic molds, PETs, or polyethylene terephthalate, is the reuse of these wastes in concrete can be one of the ways to recycle this product. In the field of using polymeric waste, especially PET, in self-compacting concrete, research is in its early stages. Highly flowing self-compacting concrete can be a good solution for the construction of structures with complex and rebar shapes without the need for a vibrator. Therefore, in this paper, laboratory studies on self-compacting concrete containing different percentages of crushed petroleum fraction particles as part of the sand with two water-to-cement ratios were 0.45 and 0.41. Also, metalaole and microsilica additives were used as a substitute for cement to improve the efficiency of the compound, and then the flow of slump, funnel V, box L, compressive strength, tensile strength and elasticity modulus were used. As the water-cement ratio increases in the mixing scheme of self-compacting concrete, self-cleaning properties decrease, as well as decreases in compressive and tensile strengths, by partially compensating the pozzolan to concrete. The results show that the addition of crushed PET particles to the concrete composition reduces self-healing properties, but replacing the sand with the crushed particles of PET can make the composition of fresh concrete self sufficiently acceptable. By examining the results of the mechanical tests of hardened concrete, it can be concluded that increasing the amount of PET particles in concrete leads to a decrease in ... compressive strength, tensile strength and elastic modulus, although this loss of properties by replacing part of the cement with metalaole and microsilica individually and simultaneously It is partially offset. How many ? cankan Translations of can NounFrequency قوطی can, canister, tin, box, packet, package حلبی tin, tinfoil, can قوطی کنسرو can Verb قادر بودن can, may قدرت داشتن can امکان داشتن can, may زندان کردن prison, lock up, can در قوطی ریختن can اخراج کردن exorcise, out, exorcize, deport, oust, can توانایی داشتن can, may Definitions of Can. Noun 1 a cylindrical metal container. a garbage can Synonyms: tin can aluminum can canister spray can garbage can trash can Verb 1 be able to. they can run fast Abbreviation 1 Canada or Canadian. 6 more definitions Examples of can children can be very cruel 29 more examples Synonyms of can Noun tin can lav potty stern can buoy canful Verb fire put up give notice 55 more synonyms
