Even Liseberg, a picturesque pink and green 1923 amusement park (not to worry, the rides have been updated) just a five-minute walk from the art museum, has an impressive shopping component — everything from specimen rose bushes to clever rakes that pick up leaves up all by themselves.
For the Ni P specimens, a rise in hardness enhanced these two parameters, whereas for the Ni P/SiC specimen it decreased them.
The microscopic observation of the fracture surfaces of the blasted samples indicates that the fatigue processes are initiated at the alumina particles that were retained within the matrix near to the surface of the specimens, giving rise to the presence of stress concentrators that act as nucleation sites of the fatigue cracks.
Large specimens can rise above the canopy as emergent trees.
Digital image correlation (DIC) and infrared thermography were used to measure full 2D true strain fields and determine specimen temperature rise during tensile testing.
A pressure-sensitive film is placed between specimen and loading platen, and reveals that a shear lag zone of reduced compressive traction exists at the periphery of the specimen, giving rise to a size effect in compressive strength.
Using fatigue-precracked, disk-shaped compact-tension specimens, marked rising resistance-curve behavior was measured over the first ∼ 600 μm of crack extension, leading to a "plateau" fracture toughness ofKc ∼ 9.1MPa√m; this represents more than a threefold increase over the toughness of Hexology, where aKc value of 2.5 MPa√m was measured with no evidence of a resistance curve.
None of the corresponding normal samples showed evidence of mutations by SSCP, indicating the mutations detected in the specimens had risen somatically.
We were able to successfully predict which specimens would give rise to prediction errors, and which would not.
Moreover, the need to use small specimens has given rise to the development of new approaches to fracture assessment, such as the master curves-shifts method.
