Micro-mechanical model for ultra-high strength and ultra-high ductility cementitious composites (UHS-UHDCC)
Micro-mechanical model for ultra-high strength and ultra-high ductility cementitious composites (UHS-UHDCC)
复制标题
超高强度和超高延性水泥基复合材料的微观力学模型(UHS-UHDCC)
DOI:
10.1016/j.conbuildmat.2020.120668
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发表时间:
2020-11
影响因子:
7.4
通讯作者:
Mechtcherine Viktor
中科院分区:
文献类型:
--
作者:
Lei Dong-Yi;Guo Li-Ping;Li Ying;Liu Jia-Ping;Chen Bo;Li Dong-Xu;Li Shao-Chun;Mechtcherine Viktor
This study finds that the slip-hardening parameter (β) increases with the increasing of PE (Polyethylene) fiber inclination for UHS-UHDCC (ultra-high strength and ultra-high ductility cementitious composites), the slip-hardening increasing coefficient (ω) is introduced to correct the β of ECC model. Therefore, the single PE fiber pullout micro-mechanical model is proposed, and this study defines the debonding behavior of PE fiber as the ‘physical debonding’. The pullout load–displacement curve of the single PE fiber and the single crack stress-opening curve verify the correctness of proposed micro-mechanical model for UHS-UHDCC. The first-crack stress (σ fc, 5.78 MPa) and the fiber bridging complementary energy (J b', 352.1 J/m 2) satisfy the strength and the energy criteria, this ensures the realization of the tensile strain-hardening behavior. This study provides a theory basis for realizing the multi-cracking strain hardening behavior of UHS-UHDCC.
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影响因子:
5.5
作者:
Jun Peng;P. Zhao;Shan Wang;Siong Wee Lee;Shaobo Kang
通讯作者:
Jun Peng;P. Zhao;Shan Wang;Siong Wee Lee;Shaobo Kang
DOI:
10.1061/(asce)0899-1561(2001)13:6(399
发表时间:
2001-11-01
影响因子:
3.2
作者:
Redon, C;Li, VC;Ogawa, A
通讯作者:
Ogawa, A
DOI:
10.14359/51685784
发表时间:
2013-07
期刊:
Scopus
影响因子:
--
作者:
R. Ranade;V. Li;Stults;T. S. Rushing;J. Roth;W. Heard
通讯作者:
R. Ranade;V. Li;Stults;T. S. Rushing;J. Roth;W. Heard
DOI:
--
发表时间:
2007
期刊:
--
影响因子:
--
作者:
H. Yokota;K. Rokugo;N. Sakata
通讯作者:
H. Yokota;K. Rokugo;N. Sakata
影响因子:
1.8
作者:
G. Fischer;V. Li
通讯作者:
G. Fischer;V. Li