"open crack" is a correct and usable phrase in written English.
It can be used to describe a physical opening or fissure in an object, or as a metaphor for a vulnerable or weak point. Example: The earthquake caused an open crack in the wall of the building. OR Her constant criticism created an open crack in their relationship.
b The infrasonic wave was generated coincident with the crack opening after 07 32 50 resulting from the strain transfer due to the open crack.
The crack is modeled as a discrete open crack represented mathematically by the Dirac delta function.
The case of an infinite Timoshenko beam with an open crack is considered.
The open crack model based on linear response characteristics can identify the crack only at an advanced stage.
In May 2014, All fell 72 feet into an open crack on a different mountain, breaking ribs and his right arm.
The stiffness of element with an open crack is calculated from fracture mechanics and the stiffness of element with a breathing crack is modeled as a time dependent stiffness matrix using the stiffness of the element with an open crack.
In order to restrict attention to the open crack scenario, parameter regimes corresponding to (1) a fully open crack, (2) a fully closed crack, and (3) a partly open partly closed crack are clearly identified.
In addition, when comparing commensurate cracks, the breathing crack is shown to induce more regions of instability than the open crack, though the open crack generally predicts an unstable response for shallower cracks than the breathing crack.
An algorithm for evaluating crack closure based on the analysis of open crack compliance variations is proposed.
Numerical examples show the influence of a fatigue, non-propagating, open crack on wave propagation in rods.
Three different crack models are studied, namely, a breathing crack model, a switching crack model and an open crack model.
