Fracture toughness determination is crucial for the design phase of pressure vessels, and, although ASTM E1820 and ISO 12135 fracture standards have existed some time, differences been reported in this property. This study investigates ductile behavior A516 Gr.70 vessel steel assesses estimating both standards. The steel’s tensile properties initiation (JIC) were evaluated, taking into account ...

Wire + Arc Additive Manufacturing (WAAM) is an advanced manufacturing technology by inexpensive Gas Tungsten Welding (GTAW) technology. Key microstructural features of the as-built WAAM alloy include large columnar β grains, grain boundary α colonies, and Heat Affected Zone (HAZ) banding, which generally leads to low ductility anisotropy. In this study, Ti–6Al–xV (x = 0, 2, 4) alloys were prepa...

In this paper we demonstrate an unusual behavior in the shear-banded flow of a viscoelastic fluid. We report large and patterned fluctuations in the shear stress in an apparently fluid material undergoing steady shear, which we interpret as an intermittent and microscopic fracture and self-healing process. The statistical pattern of the fluctuations is indicative of self-organized criticality, ...

The cavability assessment of rock mass cavability and indicating the damage profile ahead of a cave-back is of great importance in the evaluation of a caving mine operation, which can influence all aspects of the mine operation. Due to the lack of access to the caved zones, our current knowledge about the damage profile in caved zones is very limited. Among the different approaches available, p...

Comparative study conducted on eighty dentate mandibular fracture patients at maxillofacial unit of de,Montmorency College of Dentistry / Punjab Dental Hospital Lahore, treated by open reduction and internal Fixation (ORIF) by mini plates and screws in two Groups. Group-A, treated by two plate fixation and Group-B, treated by one plate fixation with tension banding by an archbar in place of sec...

Enhanced mechanical properties in terms of strain hardening capacity and uniform have been measured for recently developed TRIP-TWIP β−metastable Ti alloys. However, hardly anything has reported about their fracture properties. An original scenario including adiabatic shear banding is proposed both flat cylindrical tensile specimens Ti-12wt.% Mo tested quasi-static conditions at room temperatur...