Zacks Investment Research lowered shares of Wireless Telecom Group (NYSEAMERICAN:WTT – Get Rating) from a hold rating to a sell rating in a research report released on Thursday, Zacks.com reports. According to Zacks, “Wireless Telecom Group is a global provider of noise generation equipment in the telecommunications field. The company’s products have been primarily used […]
World No. 348 Ema Labosova cruised into the main draw of the WTT Star Contender Doha 2021 after a win in final qualifying round at the Lusail Sports Arena yesterday.
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Abstract
Our engineered metallic materials are being designed to be more and more ductile with an increase in strength. Consequently, the failure mode has changed – from brittle to ductile fracture, which leads to a limited applicability of the previously used parameters that quantify the material resistance developed for brittle fracture. This is owing to that a considerable amount of plastic strain is introduced to the fracture process. Shear-dominated ductile fracture failure is commonly observed in many of the structural metals. In the current work, a novel measure Omega Ω is proposed, which fundamentally describes the material s ability to motivate relative mass motion in response to Mode Ι shear-dominated fracture propagation. The effects of specimen geometry, fracture tip constraint and deformation modes on Ω were discussed and analysed, which inspired the ideas of normalisation approaches that lead to the development of a dimensionless parameter Normalised Omega Ω¯. A