Evolution of Matt Surface Topography in Aluminium Pack Rolling

2005 ◽  
Author(s):  
Hiroshi Utsunomiya ◽  
Michael P. F. Sutcliffe ◽  
Hugh R. Shercliff ◽  
Pete S. Bate ◽  
Dan B. Miller
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Surface Topography ◽  
Material Properties ◽  
Quantitative Agreement ◽  
Aluminium Foil ◽  
The Finite Element Method ◽  
Good Quantitative Agreement ◽  
Pack Rolling ◽  
Element Method

Roughening of the matt surface of pack rolled aluminium foil has been modelled. The model is based on the finite element method using isotropic plasticity. A distribution in material properties has been used to simulate the distribution of orientations through the material. The predictions of roughness show good quantitative agreement with the experiments.

The Numerical Simulation of Effective Elastic Response for WC-Co Cemented Carbide

2015 ◽  
Vol 1096 ◽  
pp. 417-421
Author(s):  
Pei Luan Li ◽  
Zi Qian Huang
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Theoretical Model ◽  
Material Properties ◽  
Cemented Carbide ◽  
Elastic Response ◽  
The Finite Element Method ◽  
Simulation Results ◽  
Element Method

By the use of finite element method, this paper predicts the effects of the shapes of reinforcements with different ductility (Co) on the effective elastic response for WC-Co cemented carbide. This paper conducts a comparative study on the material properties obtained through theoretical model, numerical simulation and experimental observations. Simulation results indicate that the finite element method is more sophisticated than the theoretical prediction.

Engineering Calculations of Microelectronic Products Parts and Assemblies Using Finite-Element Modeling

2021 ◽  
Vol 26 (3-4) ◽  
pp. 255-264
Author(s):  
E.Y. Chugunov ◽  
◽  
A.I. Pogalov ◽  
S.P. Timoshenkov ◽  
◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Properties ◽  
Integrated Approach ◽  
Design And Technology ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Operational Factors ◽  
The Impact ◽  
Element Method

In the context of increasing the electronic components integration level, growing functionality and packaging density, as well as reducing the electronics weight and size, an integrated approach to engineering calculations of parts and assemblies of modern functionally and technically complex microelectronic products is required. Of particular importance are engineering calculations and structural modeling using computer-aided engineering systems, and also assessment of structural, technological and operational factors’ impact on the products reliability and performance. This work presents an approach to engineering calculations and microelectronic products modeling based on the finite-element method providing a comprehensive account of various factors (material properties, external loading, temperature fields, and other parameters) impact on the stress-strain state, mechanical strength, thermal condition, and other characteristics of products. On the example of parts and assemblies of products of microelectronic technology, the approximation of structures was shown and computer finite-element models were developed to study various structural and technological options of products and the effects on them. Engineering calculations and modeling of parts and assemblies were performed, taking into account the impact of material properties, design parameters and external influences on the products’ characteristics. Scientific and technical recommendations for structure optimization and design and technology solutions ensuring the products resistance to diverse effects were developed. It has been shown that an integrated approach to engineering calculations and microelectronic products modeling based on the finite-element method provides for the determination of optimal solutions taking into account structural, technological, and operational factors and allows the development of products with high tactical, technical and operational characteristics.

Passivated Interconnect Lines: Thermomechanical Analysis and Curvature Measurements

1999 ◽  
Vol 594 ◽  
Author(s):  
A. Wikström ◽  
P. Gudmundson ◽  
S. Suresh
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Material Properties ◽  
Thermomechanical Analysis ◽  
The Finite Element Method ◽  
Curvature Measurements ◽  
Interconnect Lines ◽  
Element Method

AbstractIt is well known that curvature measurements may be used to obtain volume averaged stresses in thin continuous films and unpassivated lines without knowledge of the material properties of the film or lines. However, recently a method was presented which makes it possible to use curvature measurements also for the determination of volume averaged stresses in passivated lines. Since the problem is statically indeterminate the method requires knowledge of the material properties of the lines and passivation. The sensitivity of the method to uncertainties in material properties and curvature data is here investigated by utilizing the finite element method for anisotropic Cu or Al lines embedded in SiO2 passivation. Furthermore, the method is extended to cover the case of different stress-free temperatures for the lines and passivation respectively.

scholarly journals The Influence of Wood Modification on Transfer Function of a Violin Bridge

2020 ◽  
Vol 71 (2) ◽  
pp. 163-169
Author(s):  
Miran Merhar ◽  
Miha Humar
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Transfer Function ◽  
Material Properties ◽  
Transfer Functions ◽  
Dynamic Properties ◽  
The Finite Element Method ◽  
Wood Modification ◽  
Before And After ◽  
Element Method

The violin bridge is an important component of a violin since it transmits the excitation forces from the string to the violin body. Depending on its structure, at a certain frequency spectrum, the bridge acts as a damper or amplifier of excitation forces, which depends on its transfer function. In the study, transfer functions in the range from 400 Hz to 7000 Hz in vertical directions of 3 bridges were measured. The bridges were made from maple wood and supplied by different manufacturers. The bridges were then thermally modified, and the transfer functions were measured again. To determine the influence of thermal modification on material properties, a sample of maple wood was also modified together with the bridges, and the modulus of elasticity and shear modulus before and after the modification were measured. Using Ansys software, a bridge was modelled by the finite element method, by which natural frequencies and transfer functions before and after the modification were calculated. It can be confirmed from the research that wood modification influences the bridge transfer function and that the finite element method can be used to determine the dynamic properties of the bridge by knowing the wood material properties and, therefore, to predetermine the transfer function of the violin bridge before its production.

Numerical investigation of material properties and operating parameters effects in generating motorcycle break squeal using the finite element method

2020 ◽  
Vol 42 (5) ◽  
Author(s):  
Matheus Henrique Pires Miranda ◽  
Rômulo do Nascimento Rodrigues ◽  
Roberto de Araújo Bezerra ◽  
Pierre Maurice Christophe Lamary ◽  
Raimundo Arrais de Oliveira Neto
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Investigation ◽  
Material Properties ◽  
Operating Parameters ◽  
The Finite Element Method ◽  
Element Method

scholarly journals Estimation of Material Properties of Carbon Nanotubes Using Finite Element Method

2019 ◽  
Vol 69 (2) ◽  
pp. 7-14
Author(s):  
Bocko Jozef ◽  
Lengvarský Pavol ◽  
Pástor Miroslav
Keyword(s):  
Finite Element Method ◽  
Carbon Nanotubes ◽  
Finite Element ◽  
Material Properties ◽  
Single Walled Carbon Nanotubes ◽  
The Finite Element Method ◽  
Torsion Angles ◽  
Membrane Stiffness ◽  
Walled Carbon Nanotubes ◽  
Element Method

AbstractThe paper deals with estimation of material properties of single-walled carbon nanotubes (SWCNTs). The SWCNTs are simulated as frames, where carbon atoms are replaced by nodes and interatomic interactions are replaced by beams. The tension and torsion loading is applied on SWCNTs for determining the elastic modulus, Poisson’s ratio, shear modulus and membrane stiffness of SWCNTs. The simulations for obtaining elongations and torsion angles of SWCNTs are accomplished by the finite element method.

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