A New Tensile Test for Aluminum Alloys in the Mushy State: Experimental Method and Numerical Modeling

Purpose. Evaluation of fire resistance of fire-resistant steel structures using the developed calculation and experimental method. Methods. Finite difference method, landfill fire test method, mathematical and computer modeling of non-stationary heat exchange processes, determination of thermophysical characteristics of fire-retardant coatings based on solving direct and inverse thermal conductivity problems. Results. Geometric, physical, computer models have been developed, with the help of which the fire resistance of fire-resistant steel structures has been evaluated by the calculation-experimental method. The adequacy of the developed method for assessing the fire resistance of fire-resistant steel structures in assessing the fire resistance of fire-resistant I-beam steel column has been checked. The analysis of tests on fire resistance of fire-resistant steel columns exposed to fire at the standard temperature of the fire without the load applied to them has been carried out. A computer model of the “steel column – reactive flame retardant coating” system has been built for numerical simulation of non-stationary heating of such a system. The fire resistance of fire-resistant steel columns of I-beam section without load applied to them has been evaluated using the calculation-experimental method. Verification of results of experimental research with results of numerical modeling has been carried out. Scientific novelty. The convergence of the results of experimental data on the duration of fire exposure at the standard temperature of the fire to reach the critical temperature of steel with the results of numerical simulations has been determined. Based on the comparison of the experimental results and numerical modeling, the adequacy of the developed model to the real processes that occur when heating fire-retardant steel columns without applying a load under fire conditions at a standard fire temperature has been confirmed. The efficiency of the proposed calculation and experimental method for assessing the fire resistance of fire-resistant steel structures has been confirmed. Practical significance. It consists in the implementation of the results on objects of different purposes in assessing the fire resistance of fire-resistant steel structures by evaluating the effectiveness of fire-retardant coatings of steel building structures.

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Laser micro-welding of aluminum alloys: experimental studies and numerical modeling

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-009-2510-0 ◽

2010 ◽

Vol 50 (1-4) ◽

pp. 207-215 ◽

Cited By ~ 18

Author(s):

Magnus Rohde ◽

Christine Markert ◽

Wilhelm Pfleging

Keyword(s):

Numerical Modeling ◽

Aluminum Alloys ◽

Experimental Studies

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Investigation and Numerical Modeling of Aluminum Alloys Depending on Different Thermomechanical Processes

The Minerals, Metals & Materials Series - Materials Processing Fundamentals 2020 ◽

10.1007/978-3-030-36556-1_7 ◽

2020 ◽

pp. 69-79

Author(s):

B. Güraydin ◽

M. Dinçer ◽

H. Konbul ◽

S. K. İpek ◽

D. Dispinar ◽

...

Keyword(s):

Numerical Modeling ◽

Aluminum Alloys ◽

Thermomechanical Processes

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Numerical Modeling of Ship Composite-Based on Aluminum Casting as Alternative Materials for Ship Building

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.789.143 ◽

2013 ◽

Vol 789 ◽

pp. 143-150 ◽

Cited By ~ 1

Author(s):

Prantasi Harmi Tjahjanti ◽

Djauhar Manfaat ◽

Eko Panunggal ◽

Darminto ◽

Wibowo Harso Nugroho

Keyword(s):

Numerical Modeling ◽

Aluminum Alloys ◽

Aluminum Casting ◽

Allowable Limit ◽

Ship Building ◽

Vessel Structure ◽

Alternative Material ◽

Wrought Aluminum Alloys ◽

Distribution Of Stress ◽

Wrought Aluminum

The structure and construction of the ship is made of aluminum alloy, generally are of wrought aluminum alloys, when experiencing fatigue failure caused by a cracked vessel structure, is a serious problem. Reviewing of 'weakness' of wrought aluminum alloys for the ship, then in this study tries to provide material alternative for ship building is composite material based on aluminum casting AlSi10Mg (b) and reinforcing material silicon carbide (SiC), which has been in-treatment with the optimum composition 15%. Analysis of numerical computation with the help of ANSYS software version 2.00 to be made numerical modeling ship to ship aluminum EN AC-AlSi10Mg (b) and ship composite EN AC-AlSi10Mg (b)+SiC*/ 15p whether the material can be applied to building ship for see the distribution of stress . The results of the stress distribution in both of model numerical of ship, its value does not exceed the stress permits (sigma 0.2) and have a factor of safety above the minimum allowable limit, so it is safe to use. The overall, in numerical modeling, the ship material aluminum and ship composite materials can be used as an alternative material for ship building, however is still needed comprehensive testing in the field.Keywords: Aluminum casting ; ship building ; composite EN AC-43100(AlSi10Mg (b))+SiC*/15p; ANSYS ver.12,0

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