Dislocation Theories
نویسندگان
چکیده
منابع مشابه
Gradient theories for plasticity as the Γ-limit of a nonlinear dislocation energy
Since the motion of dislocations is regarded as the main cause of plastic deformation, a large literature is focused on the problem of deriving plasticity models from more fundamental dislocation models. The starting point of our derivation is a semi-discrete dislocation model. The main novelty of our approach is that we consider a nonlinear dislocation energy, whereas most mathematical and eng...
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This study aimed to evaluate the shoulder dislocation following tramadol-induced seizure and its potential difference with other shoulder dislocations. We evaluated six cases that used tramadol tablets and some of them had a history of seizure. All of the cases had shoulder dislocation. According to the findings, tramadol use and tramadol-induced seizure may increase the risk of shoulder disloc...
متن کاملPerilunate dislocation and perilunate fracture-dislocation.
Perilunate dislocations and perilunate fracture-dislocations usually result from high-energy traumatic injuries to the wrist and are associated with a characteristic spectrum of bony and ligamentous damage. Radiographic evaluation of the wrist reveals loss of normal radiocarpal and intercarpal colinearity and bony insult, which may be overlooked at the initial presentation. Prompt recognition i...
متن کاملDislocation and fracture-dislocation of the hip.
Of 54 patients with posterior dislocations of the hip of type I and type II (Stewart and Milford 1954), 47 were followed for a mean period of 6.7 years (2 to 11). Of these, 23 had dislocation with minimal lesions of the acetabulum (type I) and 24 had an avulsed dorsocranial fragment (type II). All were reduced by closed methods within six hours. The subsequent treatment of type I dislocations w...
متن کاملDislocation and fracture-dislocation of the pelvis.
Dislocation and fracture-dislocation of the pelvis is a major injury; the force involved in its production may not only disrupt the pelvis but result in extensive associated injuries. Between 1960 and 1968, 43 patients with this injury were treated in the Accident Service of the Radcliffe Infirmary. Their case records and radiography have been analysed and 29 of the patients re-assessed at a fo...
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ژورنال
عنوان ژورنال: Nature
سال: 1972
ISSN: 0028-0836,1476-4687
DOI: 10.1038/235402a0