Abstract
Nowadays, the autoclaved aerated concrete (AAC) has become a very common building material used in the construction of buildings/structures. For a load-bearing structure as well as framed structure, in-plane compression is an important mode of failure in the masonry walls. In this work, the finite element micro-modeling, governed by plastic-damage constitutive relation in tension and compression, has been used to model the AAC block and mortar, while cohesive zone modeling strategy is adopted to model the block–mortar interface. The developed model has been used for the estimation of AAC masonry strength. The nature of lateral stress developed due to the application of axial stress is discussed. The comparative study on stress distribution in AAC block and clay brick masonries is also presented. The results obtained from modeling have good agreement with the experimental results. It is envisaged that AAC masonry can be a sustainable option for constructing buildings.
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Acknowledgements
This work is a part of Department of Science and Technology (DST) sponsored project entitled “Design and development of proper bonding mechanism for individual AAC block units in wall system of a structure” through grant number DST/TSG/AMT/2015/375. Authors wish to acknowledge DST and industry partner M/s K D Infra, Guwahati for their support.
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Raj, A., Borsaikia, A.C., Dixit, U.S. (2020). Finite Element Modeling of Autoclave Aerated Concrete (AAC) Masonry for Estimation of Strength. In: Sharma, V., Dixit, U., Sørby, K., Bhardwaj, A., Trehan, R. (eds) Manufacturing Engineering . Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4619-8_37
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