Vince Adams and Abraham Askenazi OnWord Press X Building Better Products with FEA offers a practical yet comprehensive study of finite element analysis by reviewing the basics of design analysis from an engineering perspective. The authors provide guidelines for. 4 days ago Building Better Products With Finite Element Analysis Finite Element Analysis [ PDF] [EPUB] APPLIED FINITE ELEMENT ANALYSIS Second. 6 days ago Building Better Products Finite Element - [Free] Building Better Products Finite Element [PDF]. [EPUB] Finite Element Analysis edited by David.
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[Mobile book] Building Better Products with Finite Element Analysis. Building Better DOC | *audiobook | ebooks | Download PDF | ePub. 0 of 0 people found . Editorial Reviews Book Description: This book offers a practical view of finite element analysis (FEA) by reviewing the basics of design analysis from an. 𝗗𝗼𝘄𝗻𝗹𝗼𝗮𝗱 𝗖𝗶𝘁𝗮𝘁𝗶𝗼𝗻 on ResearchGate | Building better products with finite elements analysis / Vince Adams, Abraham Askenazi | Incluye bibliografía e.
However, the experiment on fireproof sealing is difficult to conduct to obtain the parameter of thermal and fire resistance. In this paper, the two fireproof sealing models are established by ANSYS, which is the first time to apply finite element analysis to the research of fireproof sealing and improve the effectiveness of the later experiment.
Thus, the numerical simulation of finite element analysis is introduced to study the fire protection of firewall sealing wall in this paper. Regarding finite element analysis, mathematical approximation is applied to simulate a real physical system geometric and load conditions. With simple and interacting elements, a finite number of unknowns can be used to approximate an infinitely unknown real system. In this paper, the finite element analysis was employed to investigate the thermal parameters, such as temperature field, thermal flux, and thermal gradient.
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When optimum effective combination with different materials was assumed for the model, a good approach was achieved by the simple calculation model, and the fireproof sealing model was made of different material which would enhance fire protection performance. Simulation Setup 2. Geometry Model and Material Parameters The typical fireproof materials are selected for fireproof sealing models which are widely applied in the market and have the good fireproof performance.
Moreover, the combination of various fireproof materials can greatly improve the mechanical and fireproof performance of a high-quality fireproof material. In addition, two typical models are selected for simulation study in combination experiment to explore whether the fire protection performance of various composite materials can be improved using specific research methods. Thus, the main fireproof materials are rock wool, aluminum silicate needle blanket, square steel, fire retardant coating, fire retardant module, ALC board, cement, and fire suppression module.
When designing the fireproof sealing, not only fire resistance but also stress and explosion hazard are required, and the thermodynamics should be considered firstly due to the importance of thermal performance. In this paper, two different types of combination of fire sealing were simulated with finite element analysis by ANSYS, and the parameters of thermal were achieved as the evaluation criteria to obtain the optimum effective combination.
The finite element analysis can be divided into three procedures. Firstly, the designated model should be built and the materials properties are applied in the models; secondly, the parameters of boundary conditions are given and the forces with different conditions are loaded; lastly, the data are obtained and analyzed to check the desired result after completing the simulation.
The fireproof sealing comprising rock wool, aluminum silicate needle blanket, square steel, and ALC board with fire suppression module was selected as the simulative materials of two models. And then thermal parameters, such as density, specific heat capacity, and heat conductivity, were set, respectively, in ANSYS software which could influence the thermal field and the velocity of temperature conduction, and the specific parameters of four materials are shown in Table 1 [ 15 ].
The apparatus of four material modules were shown separately in Figures 1 a and 1 b , and the fire surfaces were on the right side of two models. On account of the thermal characteristic changing with fire spread, the type of analysis was selected as transient and three significant thermal parameters were chosen as different characteristics in various temperature fields.
Table 1: Different kinds of material properties. Figure 1: The designing model of fireproof sealing. The differences of two fireproof sealing models were the model shape and the initial fire surface. Moreover, the fireproof performance of different materials was exhibited during the simulation in this paper.
A three-dimensional finite element model was built by ANSYS software, and then mesh was compared into 18 and 11 areas, respectively. Furthermore, 10 mm mesh was employed at every different kind and the total number of meshes were and partly to meet the accuracy of calculation results, which were exhibited in Figure 3. Boundary and Temperature Conditions for Thermal Analysis The fire surface of the first model is on the ALC board and square steel in the right of first model, and the fire surface of the second model is on the rock wool and fire suppression in the right of first model.
The fire surface of the fireproof sealing is one side and the two fireproof sealing models have the same initial loads. Thus, when evaluating the fire resistance of building components under liquid hydrocarbon fire conditions, a hydrocarbon HC heating curve can be used for fire resistance testing and is suited with the case. The standard temperature-time curve of the hydrocarbon HC fire is shown in Figure 2.
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The possible application scenario of the fire temperature rise curve is the oil and gas fire at the converter station. Figure 2: The curve of hydrocarbon HC temperature heating. Figure 3: The grid with finite elements of geometrical model.
Thermal Analysis Model In the thermal simulation, solid 8-node 70 elements were applied as element types as shown in Figure 3. The type of model contact is surface to surface in different materials, and the contact value between the contact surface and the target surface is , which is coordinated with simulation requirement. Results and Discussion 3. Temperature Field in Fireproof of Different Materials According to heat transfer, if there is a temperature gradient inside the model, the energy will transfer from the high temperature zone to the low temperature zone, which is transferred in the form of heat conduction.
Heat conduction is subject to Fourier law; that is, the heat flow density of a place formed by heat conduction is proportional to the temperature gradient of the same place at the same time in the nonuniform temperature field, and its mathematical expression in the one-dimensional model temperature field is exhibited in [ 16 ] where is the temperature gradient in the direction, and is thermal conductivity. When there is no internal heat source, the unsteady thermal conductivity differential equation of the three-dimensional model temperature field is as follows [ 17 ].
It is demonstrated from Figure 4 that the distribution of temperature has diverse spread trend in the two fireproof sealing models with different materials. Simultaneously, Figure 4 a indicates that the temperature conduction to the left is a gradient of heat growth, but the temperature trend irregularly transfers to low energy, which is due to the law of the conservation of energy and the function of two fire surfaces [ 18 ].
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However, the thermal performance of superstructure is superior to substructures, which demonstrates that the model widths can affect the thermal performance of fireproof sealing. In contrast, Figure 4 b shows that the regularity of heat conduction is more obvious, and the speed of conduction is apparently slow which could meet the required application requirements. Figure 4: The distribution of the temperature in the fireproof sealing.
By comparing Figure 4 a with Figure 4 b , the first model is inferior to the second model in the temperature field, and the second model is also an optimized choice in terms of heat conduction. In addition, the heat conduction equation employed for the calculation of temperature at various sections of the model is in accord with the law of thermodynamics. In the one-dimensional model, the relation between heat flux and the thermal conductivity is as follows [ 19 ].
The minus sign indicates that the heat flux moves from the higher temperature region to the lower temperature region. In the three-dimensional model, the heat flux vectors are decomposed into several components. Since the thermal field analysis in fireproof sealing is not constant, the analysis of heat flow is critical and thermal flux in the fireproof sealing is shown in Figure 5.
It is noted from Figure 5 that the minimum value of the heat flux is far less than the maximum value in the fireproof sealing, and the maximum value of heat flux substantially exists in the square steel, which is due to high thermal conductivity in the square steel. Figure 5: Thermal flux in the fireproof sealing. Thermal flux is a vector parameter, which illustrates the trend of heat flow.
To show the best heat flow, the vectors of the thermal flux in the two fireproof sealing models are demonstrated in Figure 6.
In Figure 6 a , on account of the combination of up and down heat, the vectors of thermal flux accumulate in the connection between square steel and aluminum silicate needle-punched blanket by the fire side, which demonstrates that the heat of bottom right aluminum silicate needle-punched blanket is dominated by the heat flux of the two models.
Building Better Products with FEA offers a practical yet comprehensive study of finite element analysis by reviewing the basics of design analysis from an engineering perspective. The authors provide guidelines for specific design issues, including common encounter problems such as setting boundaries and contact points between parts, sheet metal weldments, and plastic components.
The book also presents a compilation of data invaluable to the beginning as well as the experienced design analyst. Read more Find a copy online Links to this item Table of contents bvbr. Allow this favorite library to be seen by others Keep this favorite library private.
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Remember me on this computer. Cancel Forgot your password? Vince Adams ; Abraham Askenazi. Finite element method. Similar Items. FEA Capabilities and Limitations -- pt. Finite Element Modeling Basics. Common Model and Element Types.
Building Better Products with Finite Element Analysis
Assigning Properties. Finite Element Model Building.
Boundary Conditions. Solving the Model. Displaying and Interpreting Results. Tying It All Together -- pt. Advanced Modeling Techniques and Applications. Modeling Assemblies and Weldments.
Thermal Expansion Analysis.Once again, unless you are a nerd like me, skip it. Cantilever retaining wall analysis. By comparing the temperatures of different nodes, the second fireproof sealing model is superior to the first fireproof sealing model.
Foundations are broadly classified as : 1. Retaining wall - Wikipedia.