TY - GEN
T1 - Limit state approach for structurally informed design of shells composed of interlocking blocks
AU - Mousavian, Elham
AU - Casapulla, Claudia
N1 - Funding Information:
This rp oject has received funding from the European Union’s orH ion 2020 rz esearch and
Funding Information:
This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 791235.
Publisher Copyright:
Copyright © 2019 by Elham Mousavian and Claudia Casapulla Published by the International Association for Shell and Spatial Structures (IASS) with permission.
PY - 2019/10/7
Y1 - 2019/10/7
N2 - This work demonstrates an extension of limit analysis with concave model to design 3D assemblages of dry jointed interlocking rigid blocks with orthotropic sliding resistance. A digital framework is developed to design and analyse the structural feasibility of assemblages of interlocking blocks. The sliding resistance is defined as a function of the geometric properties of the interlocking interface. Adjusting the geometric parameters, designers can modify the infeasible models to be stable. The limit states are governed by two types of failure planes including dry joints and fracture strips between the locks and the main body of the block. These planes are merged and simplified to an orthotropic interface between two blocks. Then, the interface is abstracted to a number of point contact points distributed on lock centrelines, at which the stress resultants are computed by solving the equilibrium problem under proper sliding constraints. Applying this method, the limit conditions for several single layer shells with hexahedral units assembled with stack bond are illustrated.
AB - This work demonstrates an extension of limit analysis with concave model to design 3D assemblages of dry jointed interlocking rigid blocks with orthotropic sliding resistance. A digital framework is developed to design and analyse the structural feasibility of assemblages of interlocking blocks. The sliding resistance is defined as a function of the geometric properties of the interlocking interface. Adjusting the geometric parameters, designers can modify the infeasible models to be stable. The limit states are governed by two types of failure planes including dry joints and fracture strips between the locks and the main body of the block. These planes are merged and simplified to an orthotropic interface between two blocks. Then, the interface is abstracted to a number of point contact points distributed on lock centrelines, at which the stress resultants are computed by solving the equilibrium problem under proper sliding constraints. Applying this method, the limit conditions for several single layer shells with hexahedral units assembled with stack bond are illustrated.
KW - Concave limit analysis
KW - Interlocking blocks
KW - Non-isotropic sliding resistance
KW - Structurally informed computer aided design
UR - http://www.scopus.com/inward/record.url?scp=85089494391&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85089494391
T3 - Proceedings of IASS Annual Symposia
SP - 1610
EP - 1617
BT - IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
A2 - Lazaro, Carlos
A2 - Bletzinger, Kai-Uwe
A2 - Onate, Eugenio
PB - International Center for Numerical Methods in Engineering
T2 - IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE
Y2 - 7 October 2019 through 10 October 2019
ER -