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Showing 1 to 5 of 5 for “"Wierzbicki"”.
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Fracture prediction in metal sheets
… metal fracture. In the first part, the new Bao-Wierzbicki (BW) fracture criterion formulated in terms of the accumulated equivalent plastic strain with the stress triaxiality as a weighting function is considered. Using the equations of plane stress von-Mises plasticity and the strain-to-stress …
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INVESTIGATING DRONES USING OPEN-SOURCE FORENSIC SOFTWARE
The United States Department of Defense has ordered a halt to the use and purchase of unmanned aircraft systems, commonly known as drones, that use commercial-off-the-shelf components because of the potential of exfiltration of sensitive data to foreign nations. Drone sales and usage are growing …
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Successful Leadership of Small Catholic Elementary Schools
The study aimed to understand effective school principals’ perceptions of their leadership of Catholic schools. It focuses on Catholic schools with student populations of fewer than 150 students and addresses which attributes of their successes may be replicable for other small Catholic elementary …
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Experimental and numerical study on the effect of strain rate to ductile damage
… to ductile fracture. From the literature the Bai-Wierzbicki damage model was identified as being applicable to the widest range of loading conditions. Thus tests to calibrate this failure locus were conducted on sheet specimens with notches cut into each to introduce non-axial stresses, resulting …
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Analisi teorica, numerica e sperimentale dei processi di grandi deformazioni nei materiali duttili
… are analyzed in details: the the Lemaitre and Wierzbicki-Xue models. This choice was made to evaluate from different point of view the differences in the determination procedures of the material features along the deformation pattern. Both the models were implemented and tested through two …