Impact of Temperature Cracks on the Toughness and Load-Bearing Performance of Structural Components

Yue Gao; Danxiang Ma

doi:10.6919/ICJE.202509_11(9).0007

Authors

Yue Gao
Danxiang Ma

DOI:

https://doi.org/10.6919/ICJE.202509_11(9).0007

Keywords:

Thermal Cracks; Finite Element Analysis; Stress Intensity Factor.

Abstract

A simulation of the shear performance of four simply supported beams with existing thermal cracks was conducted. The study investigated the influence of different crack locations and different load positions on the stress intensity factor of the existing thermal cracks. The results indicate that thermal cracks in the midspan of the beam are more likely to propagate new cracks. The smaller the load-to-shear span ratio, the higher the likelihood of the existing thermal cracks continuing to expand. For thermal cracks in the midspan, the possibility of developing into Mode II cracks (shear mode) is relatively high.

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