scholarly journals X-ray CT observation and analysis of compressive deformation behavior of syntactic foam/aluminum foam interpenetrating phase composites

2014 ◽  
Vol 64 (11) ◽  
pp. 598-603 ◽  
Author(s):  
Wataru Naruse ◽  
Sayako Kondo ◽  
Makoto Kobashi ◽  
Naoyuki Kanetake ◽  
Yuki Iwama ◽  
...  
2007 ◽  
Vol 353-358 ◽  
pp. 651-654 ◽  
Author(s):  
M.F. Adziman ◽  
S. Deshpande ◽  
Masaki Omiya ◽  
Hirotsugu Inoue ◽  
Kikuo Kishimoto

The stochastic nature of aluminum foam structure, having a random distribution of voids, makes it difficult to model its compressive deformation behavior accurately. In this paper, a 2-dimensional simplified modeling approach is introduced to analyze the compressive deformation behavior that occurs in Alporas aluminum foam (Al foam). This has been achieved using image analysis on real undeformed aluminum foam images obtained by VHX-100 digital microscope. Finite element mesh for the cross sectional model is generated with Object Oriented Finite element (OOF) method combined with ABAQUS structural analysis. It is expected that OOF modeling enable prediction of the origin of failure in terms of localized deformation with respect to the microstructural details. Furthermore, strain concentration sites leading to the evolution of the deformation band can be visualized. Thus, this investigation addresses the local inhomogeneity in the Al foam structure. This study implies that the OOF modeling approach combined with experimental observations can provide better insight into the understanding of aluminum foam compressive deformation behavior.


2012 ◽  
Vol 556 ◽  
pp. 678-684 ◽  
Author(s):  
Yoshihiko Hangai ◽  
Kazuya Takahashi ◽  
Ryo Yamaguchi ◽  
Takao Utsunomiya ◽  
Soichiro Kitahara ◽  
...  

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1226
Author(s):  
Yoshihiko Hangai ◽  
Daisuke Kawato ◽  
Masataka Ohashi ◽  
Mizuki Ando ◽  
Takuya Ogura ◽  
...  

Forming aluminum foam to the desired shape while retaining its pore structures is essential for manufacturing aluminum foam products. Recently, a press forming process for aluminum foam that is performed after precursor foaming but before solidification has been proposed. In this study, to track individual pores throughout press forming immediately after foaming, X-ray radiography inspection was applied. A thin precursor was used, and foaming was constrained to the X-ray transmission direction. It was shown that, although some pores coalesced with other pores, the pores did not collapse during press forming. In addition, the porosity of aluminum foam evaluated from X-ray transmission images was constant during press forming. Some pores retained their shape during press forming but their position was changed by the material flow generated by press forming. These results show that by press forming before the solidification of aluminum foam, aluminum foam can be shaped without the collapse of pores.


2005 ◽  
Vol 46 (7) ◽  
pp. 1677-1680 ◽  
Author(s):  
Masataka Hakamada ◽  
Tatsuho Nomura ◽  
Yasuo Yamada ◽  
Yasumasa Chino ◽  
Youqing Chen ◽  
...  

2012 ◽  
Vol 44 (4) ◽  
pp. 1880-1886 ◽  
Author(s):  
Yoshihiko Hangai ◽  
Ryo Yamaguchi ◽  
Shunya Takahashi ◽  
Takao Utsunomiya ◽  
Osamu Kuwazuru ◽  
...  

2018 ◽  
Vol 17 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Surendra Kumar Patel ◽  
Virendra Pratap Singh ◽  
Sanjeev Kumar Yadav ◽  
Basil kuriachen ◽  
Raman Nateriya

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