TY - JOUR
T1 - Analysis of a functionally graded particulate composite under flexural loading conditions
AU - Gupta, Nikhil
AU - Gupta, Sandeep Kumar
AU - Mueller, Benjamin J.
PY - 2008/6/25
Y1 - 2008/6/25
N2 - The conventional microstructures of functionally graded particulate composites are based on creating a gradient of either the particle volume fraction or the size along one dimension of the material. However, premature cracking and poor dimensional stability of such composites limit their applications. Hollow particle filled composites, called syntactic foams, present an opportunity to fabricate functionally gradient composites based on a new approach, which relies on creating a gradient of particles as per their wall thickness. The present study is focused on characterizing the functionally graded syntactic foams (FGSFs) based on this kind of structure for flexural properties. In previous studies the FGSFs based on wall thickness variation are found to have considerably higher energy absorption under compressive loading conditions compared to the FGSFs based on volume fraction variation. In this study the experimental results of flexural testing are compared with the theoretical and finite element analysis for both types of FGSFs. Results show that the flexural properties of FGSFs based on wall thickness approach can be controlled more effectively.
AB - The conventional microstructures of functionally graded particulate composites are based on creating a gradient of either the particle volume fraction or the size along one dimension of the material. However, premature cracking and poor dimensional stability of such composites limit their applications. Hollow particle filled composites, called syntactic foams, present an opportunity to fabricate functionally gradient composites based on a new approach, which relies on creating a gradient of particles as per their wall thickness. The present study is focused on characterizing the functionally graded syntactic foams (FGSFs) based on this kind of structure for flexural properties. In previous studies the FGSFs based on wall thickness variation are found to have considerably higher energy absorption under compressive loading conditions compared to the FGSFs based on volume fraction variation. In this study the experimental results of flexural testing are compared with the theoretical and finite element analysis for both types of FGSFs. Results show that the flexural properties of FGSFs based on wall thickness approach can be controlled more effectively.
KW - Bending test
KW - Foams
KW - Fracture
KW - Particulate reinforced composites
UR - http://www.scopus.com/inward/record.url?scp=42249090543&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42249090543&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2007.08.020
DO - 10.1016/j.msea.2007.08.020
M3 - Article
AN - SCOPUS:42249090543
VL - 485
SP - 439
EP - 447
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 1-2
ER -