Continuum damage model for orthotropic materials: Application to masonry

By L. Pelà, Miguel Cervera, P. Roca. 2011

143 citations recorded by the source corpus.

This paper contributes to the formulation of continuum damage models for orthotropic materials under plane stress conditions. Two stress transformation tensors, related to tensile and compressive stress states, respectively, are used to establish a one-to-one mapping relationship between the orthotropic behaviour and an auxiliary model. This allows the consideration of two individual damage criteria, according to different failure mechanisms, i.e. cracking and crushing. The constitutive model adopted in the mapped space makes use of two scalar variables which monitor the local damage under tension and compression, respectively. The model affords the simulation of orthotropic induced damage, while also accounting for unilateral effects, thanks to a stress tensor split into tensile and compressive contributions. The fundamentals of the method are presented together with the procedure utilized to adjust the model in order to study the mechanical behaviour of masonry material. The validation of the model is carried out by means of comparisons with experimental results on different types of orthotropic masonry at the material level.

Subfields: Civil and Structural Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/4ec427ec23a89ea88a091075f54c596721565486

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In Civil and Structural Engineering

In Mechanics of Materials

Citations in the corpus

Modeling Strategies for the Computational Analysis of Unreinforced Masonry Structures: Review and Classification (2019, background): “More recently, Pelà et al. [164, 165] proposed an ortho-tropic damage model for the analysis of masonry structures, in which the orthotropic behavior is simulated through the concept of mapped tensors from the anisotropic field to an auxiliary workspace.”
An orthotropic damage model for the analysis of masonry structures (2013, methodology): “The following transformations of the tensile and compressive stress components from the real to the mapped space are introduced, according to [34,35]: rþ 1⁄4 A : rþ ð8Þ”
Regularization of first order computational homogenization for multiscale analysis of masonry structures (2015, background): “The formulation of phenomenological closed-form constitutive laws for the analysis of heterogeneous quasi-brittle materials such as masonry is still a challenging task [45,46].”