Derivation of in-plane macroscopic elastoplastic behavior of ISEB masonry walls

Dry-stacked Interlocking Stabilized Earth Blocks (ISEB) were developed as a new alternative for conventional masonry. This paper deals with the experimental characterization of ISEB masonry walls and modeling. The elastoplastic mechanical parameters of stabilized earth material and dry joints are id...

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Bibliographic Details
Published in:Structures (Oxford) 2022-10, Vol.44, p.84-100
Main Authors: Sahli, Ghada, Ben Ayed, Hela, Limam, Oualid, Aidi, Mohamed
Format: Article
Language:English
Subjects:
Coulomb friction law
Dry-stacked masonry
Finite element
Interface behavior
Interlocking Stabilized Earth Block (ISEB)
Mohr Coulomb parameters
Numerical modeling
Periodic homogenization
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Summary:Dry-stacked Interlocking Stabilized Earth Blocks (ISEB) were developed as a new alternative for conventional masonry. This paper deals with the experimental characterization of ISEB masonry walls and modeling. The elastoplastic mechanical parameters of stabilized earth material and dry joints are identified through finite element modeling of different experimental tests. Afterwards, using the identified parameters, macroscopic mechanical properties of a periodic Representative Volume Element (RVE) are deduced and then validated experimentally on real RVE specimens tested in horizontal and vertical directions. The results show that the periodic homogenization approach adopted here is sufficiently accurate to model the global compressive behavior of the wall made with ISEBs. After that, an in-plane vertical compression-horizontal shear failure criterion is determined and then compared to analytical failure criteria. Finally, a full-scale wall subjected to dynamic load is modeled to implement this research in a real field for practicing designers and engineers.
ISSN:2352-0124
2352-0124
DOI:10.1016/j.istruc.2022.07.079