perjury 发表于 2025-3-25 04:19:17
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Crack Propagation and Arrest under Dynamic Loading Conditions in an Elastic-Plastic Stripenvironment but then enters a region of elastic-plastic material behavior. Fields of stress and deformation for the transient crack propagation and arrest problem have been obtained numerically by a finite difference procedure. The extensional strain just ahead of the arrested crack tip has been comRecess 发表于 2025-3-25 18:12:32
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Application of Microstatistical Fracture Mechanics to Dynamic Fracture Problemss encountered by the Army are not single crack problems and cannot be treated by continuum approaches. In fact, ordnance problems can, and usually do, involve many simultaneously active cracks as well as other simultaneously occurring failure processes. The situation is illustrated In Figure 1, whicpatriot 发表于 2025-3-26 03:39:24
Scaling of Shear Band Fracture Processesl size groups and orientations. Under large plastic strains the bands are nucleated, grow, and coalesce to form fragments. With this model we can now estimate the importance of scaling and rate effects. The two effects are intimately related because rate effects are a common source for deviations fr我不重要 发表于 2025-3-26 04:49:04
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sunami in Indonesien, Erdbeben in Italien oder ersten deutlichen Anzeichen für einen Anstieg des Meeresspiegels ein Katastrophenszenario zu bewältigen, das ihre Bedrohung noch einmal nachhaltig verstärkt. In Europa werden die Menschen zunehmend mit Gefahren konfrontiert, die sich nicht irgendwo auf精致 发表于 2025-3-26 15:24:32
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Dennis E. Grady,James R. Asay,Richard W. Rohde,Jack L. Wise