Spiral to flat fracture transition for notched rods under torsional loading
Source abstract
Abstract
The transition of the fracture surface in notched and unnotched PMMA rods under torsional loading is investigated experimentally. The experiments show that for crack initiation from a notch, resulting in dynamic fracture propagation, as the notch depth increases, the surface transitions from a spiral fracture to a nominally flat, but faceted surface. The facets coarsen and merge as the crack grows toward the center of the rod. The resulting fracture surfaces as well as the multiple internal micro-cracks are visualized using micro CT scanning.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Numerical methods in engineering · Material Properties and Failure Mechanisms
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References (25)
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