Effects of debonding repairment on interfacial damage and thermal deformation of CRTS II slab ballastless track

Yan, Daobin; Xu, Yidong; Zhu, Wenjun

doi:10.1016/j.conbuildmat.2023.131793

Cited by 5 publications

(1 citation statement)

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“…In addition, temperature differences greatly affect the interfacial stress field between fibers and resin interfaces. Some scholars 15,16 incorporated temperature parameters into the CZM to study the effect of temperature on interface mechanical properties. Ibrahim and Albarbar 17 proposed a new CZM combining mechanical and thermal effects and verified the model with the low-temperature mode II crack experimental data.…”

Section: Introductionmentioning

confidence: 99%

Modeling the progressive damage of cryogenic microdroplet tests using a temperature‐friction cohesive zone model

Li,

Xu,

Zou

et al. 2023

Polymer Composites

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The fiber/resin interfacial mechanical properties in low‐temperature environments are crucial for composite materials, and a temperature‐friction cohesive zone model is proposed in this paper. This model combines the temperature effect, the interfacial friction effect, and the interfacial debonding. The mechanical characteristics of the fiber/matrix interface are described using this model. The proposed model has been implemented in ABAQUS using the VUMAT subroutine. To verify this model, microdroplet debonding experiments were conducted at temperatures 298, 193, and 77 K. The results of the simulation and the experiment matched well. The proposed model takes temperature differences as a parameter and can characterize the interfacial mechanical response at different temperatures. In addition, the temperature, friction, interface parameters, and microdroplet size effects on the mechanical properties of the fiber/matrix interface were investigated. The results show that interfacial friction and temperature differences have a significant impact on the interfacial mechanical properties. The microdroplet size also has an influence on interfacial shear strength.Highlights A temperature‐friction cohesive zone model is proposed. Cryogenic microdroplet debonding tests were conducted. The finite element method results are stable and close to the regression line of tests. The temperature difference changes the stress state of the interface. The interfacial sliding friction force has a large dispersion.

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Section: Introductionmentioning

confidence: 99%