scholarly journals A constitutive model of particulate-reinforced composites taking account of particle size effects and damage evolution

2010 ◽  
Vol 41 (2) ◽  
pp. 313-321 ◽  
Author(s):  
Keiichiro Tohgo ◽  
Yu Itoh ◽  
Yoshinobu Shimamura
2010 ◽  
Vol 452-453 ◽  
pp. 625-628
Author(s):  
Tomoyuki Fujii ◽  
Keiichiro Tohgo ◽  
Yu Itoh ◽  
Daisuke Kato ◽  
Yoshinobu Shimamura

This paper deals with an analysis of a crack-tip field of particulate-reinforced composites which can describe the evolution of debonding damage, matrix plasticity and particle size effect on deformation and damage. Numerical analyses were carried out on a crack-tip field in elastic-plastic matrix composites reinforced with elastic particles by using a finite element method developed based on an incremental damage theory. The particle size effect on damage is described by a critical energy criterion for particle-matrix interfacial debonding. The effect of debonding damage on a crack-tip field is discussed based on numerical results. The debonding damage initiates and progresses ahead of a crack-tip. The stress distribution shifts downward in the debonding damage area. It is concluded that a crack-tip field is strongly affected by debonding damage.


2021 ◽  
Vol 291 ◽  
pp. 118120
Author(s):  
Qiming Mo ◽  
Xingjian Yang ◽  
Jinjin Wang ◽  
Huijuan Xu ◽  
Wenyan Li ◽  
...  

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