Numerical study on size effect and anisotropy of columnar jointed basalts under uniaxial compression

2021 ◽  
Vol 81 (1) ◽  
Author(s):  
Yongyi Wang ◽  
Bin Gong ◽  
Chun’an Tang ◽  
Tao Zhao
Keyword(s):  
Size Effect ◽  
Uniaxial Compression ◽  
Numerical Study

Experimental and numerical study of size effect on long-term drying behavior of concrete: influence of drying depth

2016 ◽  
Vol 49 (10) ◽  
pp. 4029-4048 ◽  
Author(s):  
H. Samouh ◽  
A. Soive ◽  
E. Rozière ◽  
A. Loukili
Keyword(s):  
Size Effect ◽  
Numerical Study ◽  
Drying Behavior

scholarly journals Numerical study of size effect in concrete penetration with LDPM

2018 ◽  
Vol 14 (5) ◽  
pp. 560-569 ◽  
Author(s):  
Jun Feng ◽  
Wei-wei Sun ◽  
Bao-ming Li
Keyword(s):  
Size Effect ◽  
Numerical Study

Dynamic size effect of concrete under tension: A numerical study

2019 ◽  
Vol 132 ◽  
pp. 103318 ◽  
Author(s):  
Liu Jin ◽  
Wenxuan Yu ◽  
Xiuli Du ◽  
Wangxian Yang
Keyword(s):  
Size Effect ◽  
Numerical Study

Analytical and Numerical Study of Crushing of Syntactic Foams Under Uniaxial Compression

2008 ◽  
Author(s):  
Prabhakar Marur
Keyword(s):  
Finite Element ◽  
Uniaxial Compression ◽  
Numerical Study ◽  
Bulk Material ◽  
Hollow Spheres ◽  
Syntactic Foam ◽  
Particulate Composites ◽  
Syntactic Foams ◽  
The Matrix ◽  
Crushing Behavior

Syntactic foams are a class of particulate composites made with hollow microspheres dispersed uniformly in a matrix. By the inclusion of hollow spheres in the matrix, the bulk mechanical properties are improved by limiting the bending of cell edges and localization of inelastic deformation, which is the cause of failure in the case of low-density foams. For the general class of cellular materials, several analytical and experimental methods are available in the literature to characterize the material. In the case of syntactic foams, relatively few methods exist for the computation of effective elastic properties and methods for analyzing the crush behavior of the syntactic foams are rather limited. In this research, the quasi-static crushing behavior of syntactic foam under uniaxial compression is investigated using analytical and numerical methods. To better understand the bulk behavior of syntactic foam, a micromechanical study is conducted to analyze the crushing of hollow spheres in dilute concentration. Initially the stress fields around dilute concentration are derived using continuum mechanics principles and subsequently a limit analysis is performed. To gain further insight into the deformation fields and deformations of cell walls leading to densification, a finite element (FE) analysis is performed. Assuming a periodic repetition of a representative volume of the material would correspond to the bulk material, axisymmetric and 3D finite element models are developed. The numerical computations are compared with the analytical results obtained in this study, and with experimental data reported in the literature. Using the FE models, a parametric study is conducted to investigate the influence of microsphere strength and elastic mismatch between the matrix and the inclusions on the crush behavior of syntactic foam.

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