Micromechanics-based analysis of PVA–ECC after thermal exposure

Zhang, Zhigang; Liu, Jin-Cheng; Li, Junxia; Qin, Fengjiang; Di, Jin

doi:10.1007/s43452-023-00736-1

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Artykuł - szczegóły

Czasopismo

Archives of Civil and Mechanical Engineering

2023 | Vol. 23, no. 3 | art. no. e213, 2023

Tytuł artykułu

Micromechanics-based analysis of PVA–ECC after thermal exposure

Autorzy

Zhang, Zhigang , Liu, Jin-Cheng , Li, Junxia , Qin, Fengjiang , Di, Jin

Wybrane pełne teksty z tego czasopisma

http://www.springer.com/journal/43452

Warianty tytułu

Języki publikacji

Abstrakty

In this paper, the thermal effects on mechanical properties of polyvinyl alcohol fiber-reinforced engineered cementitious composites (PVA–ECC) were investigated systematically from perspective of multi-scales. At composite level, the compressive strength increases from 38 to 50 MPa as the samples were heated from 30 to 200 °C, whereas it declines to 20 MPa at 800 °C. In respect of tensile performance, at range of 30– 200 °C, the ultimate tensile stress and strain of ECC showed a decrease tendency with rising temperature, but still remained strain-hardening behavior at 200 °C. In addition, the elevated temperature exposures are adverse to multiple-cracking behavior of ECC. At micro-scale, it was found that the fiber/matrix interfacial bond reduces as exposure temperature rises, which is supposed to avail the fiber slippage, and thereby ductility of ECC. Nonetheless, through micromechanics-based analysis, the enhanced matrix toughness and severe deteriorated fiber strength prevailed over the above positive effect, which resulted in the decayed tensile properties of ECC.

Słowa kluczowe

właściwości mechaniczne oddziaływanie cieplne wieloskalowość analiza mikromechaniczna

PVA–ECC mechanical properties thermal impact multi-scale micromechanical analysis

Wydawca

Czasopismo

Archives of Civil and Mechanical Engineering

Rocznik

2023

Tom

Vol. 23, no. 3

Strony

art. no. e213, 2023

Opis fizyczny

Bibliogr. 40 poz., rys., wykr.

Twórcy

autor

Zhang, Zhigang

School of Civil Engineering, Chongqing University, 400045 Chongqing, People’s Republic of China, zhangzg@cqu.edu.cn

autor

Liu, Jin-Cheng

Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, China, jcliu@hku.hk

autor

Li, Junxia

Institute of Materials Research and Engineering, A*STAR (Agency for Science Technology and Research), Singapore, Republic of Singapore, jli019@e.ntu.edu.sg

autor

Qin, Fengjiang

School of Civil Engineering, Chongqing University, 400045 Chongqing, People’s Republic of China

autor

Di, Jin

School of Civil Engineering, Chongqing University, 400045 Chongqing, People’s Republic of China, dijin@cqu.edu.cn

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)

Typ dokumentu

Bibliografia

Identyfikatory

DOI

10.1007/s43452-023-00736-1

Identyfikator YADDA

bwmeta1.element.baztech-61935e05-04e2-4ae7-8b97-e200721ad82f