scholarly journals Advances in Processing and Mechanical Behavior in Lightweight Metals and Alloys

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1555
Author(s):  
Claudio Testani

The demand for lightweight metals and related alloys is still the most suitable solution to many high-tech applications, including sports equipment and automotive components where alternate movements require low inertia [...]

2012 ◽  
Vol 2012 ◽  
pp. 1-2 ◽  
Author(s):  
Hugh J. McQueen ◽  
Enrico Evangelista ◽  
Michael E. Kassner ◽  
Chong Soo Lee

2020 ◽  

Increasing advancement in automotive technologies ensures that many more lightweight metals become added to the automotive components for the purpose of light weighting and passenger safety. The accidents are unexpected incidents most drivers cannot be avoided that trouble situation. Crash studies are among the most essential methods for enhancing automobile safety features. Crash simulations are attempting to replicate the circumstances of the initial crash. Frontal crashes are responsible for occupant injuries and fatalities 42% of accidents occur on frontal crash. This paper aims at studying the frontal collision of a passenger car frame for frontal crashes based on numerical simulation of a 35 MPH. The structure has been designed to replicate a frontal collision into some kind of inflexible shield at a speed of 15.6 m/s (56 km/h). The vehicle’s exterior body is designed by CATIA V5 R20 along with two material properties to our design. The existing Aluminum alloy 6061 series is compared with carbon fiber IM8 material. The simulation is being carried out by us in the “Radioss” available in “Hyper mesh 17.0” software. The energy conservation and momentum energy absorption are carried out from this dynamic structural analysis.


Author(s):  
R. W. Neu ◽  
J. J. Dawkins ◽  
M. Zhang

The microstructures of structural metals and alloys are highly heterogeneous due to their crystalline structure often coupled with multiple phases and inclusions, yet most contact mechanics models assume the material is homogeneous and usually isotropic. This is a severe limitation if one desires to quantify the influence of different microstructure attributes on the mechanical behavior. This limitation is overcome through the finite element method using crystal plasticity models. Examples of normal, sliding, and fretting contacts are presented.


1999 ◽  
Vol 121 (4) ◽  
pp. 213-221 ◽  
Author(s):  
E. Suhir

We examine some attributes of modeling of the mechanical behavior of materials and structures in microelectronics and photonics (mainly fiber optics) engineering. The merits and shortcomings of experimental and theoretical modeling are addressed, as well as the interaction between different modeling approaches. The concepts discussed are illustrated by a brief review of the published work in the field. The review is based primarily on the author’s research conducted during his work at Bell Laboratories and reflects, to a great extent, the state-of-the-art in modeling of the mechanical behavior of “high-tech” materials and structures. “The only real voyage to discovery consists not in seeking new landscapes, but in having new eyes.” [Marcel Proust, French Writer] “The Practical value of mathematics is, in effect, a possibility to obtain, with its help, results simpler and faster.” [Andrey Kolmogorov, Russian Mathematician]


1983 ◽  
pp. 237-267
Author(s):  
D. T. Read

Abstract The mechanical properties of a material describe the relations between the stresses acting on the material and its resulting deformations. Stresses capable of producing permanent deformations, which remain after the stresses are removed, are considered in this chapter. The effects of cryogenic temperatures on the mechanical properties of metals and alloys are reviewed in this chapter; the effects on polymers and glasses are discussed briefly. The fundamental mechanisms controlling temperature-dependent mechanical behavior, phenomena encountered in low-temperature testing, and the mechanical properties of some representative engineering metals and alloys are described. Modifications of test procedures for low temperatures and sources of data are also included.


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