Study on probability model and length effect of tensile strength of unidirectional CFRP plate

Huang, Bin; Yang, Yan; Liu, Xiao-gang; Yue, Qing-rui

doi:10.1016/j.compstruct.2023.117531

Cited by 6 publications

(1 citation statement)

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“…The tensile strength of carbon fibers has significant randomness due to the presence of internal defects, and increasing fiber length increases the probability of material defects, thus significantly reducing its strength. Therefore, this paper utilizes the couple-Weibull model proposed by Huang [38] to estimate the reduced tensile strength of carbon fiber cables with different lengths, as shown in Equation (1).…”

Section: Finite Element Modelingmentioning

confidence: 99%

Numerical Investigation on the Structural Behavior of a Short-Span Cable-Stayed Bridge with Steel and CFRP Hybrid Cables

Lu,

Wang,

Ning

et al. 2024

Materials

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In this paper, a thorough investigation is presented on the static and dynamic behaviors of a short-span cable-stayed bridge (CSB) incorporating steel and carbon fiber reinforced polymer (CFRP) hybrid cables. The study focuses on the world’s largest span and China’s first highway, CFRP CSB. The performance of the CSB was compared using numerical simulations under four different cable patterns: steel cables, CFRP cables, and steel, and two types of hybrid cables with different structural arrangements. The results indicate that the use of the use of CFRP cables in the long cable region in the short-span CSB project investigated in this study offers improved performance in terms of stability, seismic response, and reduced displacements. In comparison to CFRP cables, hybrid cables have demonstrated a reduction of 12% in the maximum vertical displacement of the main girder. On the other hand, the hybrid cables result in reduced maximum internal forces and longitudinal and lateral displacements of the main girders and towers compared to steel cables. The difference in the arrangement of CFRP cables in the long cable region or short cable region is not obvious under dead loads, but significant differences still exist between the CFRP cable bridges in the short cable region and the long cable region in terms of live load effects, temperature effects, and dynamic characteristics.

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Section: Finite Element Modelingmentioning

confidence: 99%