Prediction on Crack Propagation of Concrete due to Time-Dependent Creep under High Sustained Loading

2022 ◽  
Vol 34 (2) ◽  
Author(s):  
Jie Li ◽  
Wei Dong ◽  
Binsheng Zhang ◽  
Xiangming Zhou
Keyword(s):  
Crack Propagation ◽  
Time Dependent ◽  
Sustained Loading

Modeling of Stiffness Reduction of Vibration Conveyor Springs Subjected to Ultra High Cyclic Loading under High Humidity

2011 ◽  
Vol 471-472 ◽  
pp. 975-980
Author(s):  
Takahiko Yoshi ◽  
Kazuya Okubo ◽  
Toru Fujii
Keyword(s):  
Crack Propagation ◽  
Creep Deformation ◽  
Crack Tip ◽  
Time Dependent ◽  
High Humidity ◽  
Humidity Condition ◽  
Stiffness Reduction ◽  
Carbon Fiber Cloth ◽  
Plate Spring ◽  
High Humidity Condition

Significant stiffness reduction of the plate spring due to delaminations around the interwoven cloths could be prevented by using CFRTP (carbon fiber cloth and Polyethylene Terephthalate (PET)) rather than that by using CFRP (carbon fiber cloth and epoxy), when ultra high cyclic loading was applied to the plate spring under high humidity condition. To explain the result, the prediction model of stiffness reduction was introduced considering time-dependent crack propagation accompanying with creep deformation around the crack tip. Stiffness reduction of CFRP under high humidity condition was not only determined by cyclic crack propagation but also by time-dependent crack propagation accompanying with creep deformation around the crack tip. It was found that CFRTP was effective material of the plate springs on vibration conveyer for the uses under high humidity condition to prevent significant stiffness reduction, where the crack propagation accompanying with creep deformation should be prevented around the crack tip.

618 3D morphology of crack propagation path for time dependent fracture

2012 ◽  
Vol 2012.20 (0) ◽  
pp. 173-174
Author(s):  
Yuki OWADA ◽  
Yusuke IWATA ◽  
Shin DAIKUHARA ◽  
Daiki NAITO ◽  
Satoshi KUBOTA ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Time Dependent ◽  
Propagation Path ◽  
Crack Propagation Path ◽  
3D Morphology
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