A simplified damage evolution relationship and deformation characteristics of a pozzolanic lime mortar when subjected to unloading-reloading cycles in the pre-peak region
| Autor: | S. Mavrigiannakis, P. Maravelaki-Kalaitzaki, Zach Agioutantis, K. Kaklis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
lcsh:Mechanical engineering and machinery lcsh:TA630-695 Modulus plastic strain Plasticity engineering.material Damage evolution Pre peak Cyclic loading lcsh:TJ1-1570 Composite material Lime mortar cyclic loading Plastic strain Mechanical Engineering Young’s modulus degradation damage evolution Pozzolan lcsh:Structural engineering (General) Pozzolanic lime mortar Shear (geology) Mechanics of Materials pozzolanic lime mortar engineering young�s modulus degradation Mortar |
| Zdroj: | Frattura ed Integrità Strutturale, Vol 13, Iss 50, Pp 395-406 (2019) Frattura ed Integrità Strutturale; Vol. 13 No. 50 (2019): October 2019; 395-406 Frattura ed Integrità Strutturale; V. 13 N. 50 (2019): October 2019; 395-406 Frattura ed Integrità Strutturale, Vol 13, Iss 50 (2019) |
| ISSN: | 1971-8993 |
| Popis: | Summarization: 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 prepeak region is related to damage that occurs in each specimen. Παρουσιάστηκε στο: Frattura ed Integrità Strutturale |
| Databáze: | OpenAIRE |
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