Kostas Kaklis https://orcid.org/0000-0003-2722-5915 Zach Agioutantis https://orcid.org/0000-0002-9799-4114 Stelios Mavrigiannakis Pagona Maravelaki-Kalaitzaki https://orcid.org/0000-0002-8776-6695


Two series of uniaxial and triaxial compression tests including unloading-reloading cycles were performed under different confining press­ures, in order to study the stress-strain and the deformation behavior of a pozzolanic lime mortar subjected to cyclic loading. Each test included a cyclic loading sequence using five loops in the pre-peak region. The experi­ment­al results showed that the specimens exhibit a strain-softening behavior for uniaxial and low pressure triaxial tests and a strain-hardening behavior for higher triaxial compression tests. The mortar specimens subjected to triaxial compressive cyclic loading at higher confining pressures failed along a single or conjugate shear planes accompanied by considerable lateral ex­pansion. The marked Young’s modulus degradation behavior in the pre-peak region is related to damage that occurs in each specimen.


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    SI: Research activities of the Greek Society of Experimental Mechanics of Materi

    How to Cite

    Kaklis, K., Agioutantis, Z., Mavrigiannakis, S. and Maravelaki-Kalaitzaki, P. (2019) “A simplified damage evolution relationship and deformation character¬istics of a pozzolanic lime mortar when subjected to unloading-reloading cycles in the pre-peak region”, Frattura ed Integrità Strutturale, 13(50), pp. 395-406. doi: 10.3221/IGF-ESIS.50.33.