The suitability of the 6ECT carbon/epoxy specimens combined with an effective crack based data reduction scheme is validated by finite element analyses with the virtual crack closure technique and cohesive elements.
The model computes the probability of initiating a small crack based on the probability of finding combinations of defects and grains on the surface.
This work presents a solution for the elastic T-stress at the tip of a slightly curved or kinked crack based on a perturbation approach.
The diagonal pattern of the stirrup strain gauges followed the anticipated critical shear crack based on previous testing of similar specimens.
Fiber modeling approach has been implemented to determine the performance of bridge piers (such as cracking base shear, cracking displacement, yield base shear, yield displacement, crushing base shear/shear capacity, displacement at crushing/shear failure and ductility) under lateral loads.
These results are compared with the predictions of the theoretical models of matrix cracking based on fracture mechanics analysis.
The model captures both long and physically short fatigue crack growth behavior, but the emphasis of this contribution is on the modifications for physically short cracks based on empirical models found in the literature.
Here we propose a novel kinetic model of quartz vein formation that allows us to estimate the sealing times of isolated cracks based on pore-fluid pressure drop within the crack, advective flow of silica-rich fluids from the peripheral host rock, and quartz crystal growth in the seismic zone.
This paper proposes a Paris-type damage model to investigate the collective evolution of short fatigue cracks based on fractal theory.
A simplified analytical model for predicting the age at cracking based on elastic modulus, tensile relaxation, shrinkage strain and tensile strength is also presented.
