Imperfection Sensitivity
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. On Micro-Buckling of Unidirectional Fiber-Reinforced Composites by Means of Computational Micromechanics
Abstract Micro-buckling of unidirectional fiber-reinforced composites is investigated in this paper by means of an explicit representation of a geometrically imperfect fiber within the context of kinematical and material non-linear behavior. Two types of fiber imperfections are considered: a helicoidal shape, identified as 3D imperfection; and a sinusoidal p
Lat. Am. j. solids struct.. Publicado em: 2016-12
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2. A new approach to evaluate imperfection sensitivity in asymmetric bifurcation buckling analysis
A direct procedure for the evaluation of imperfection sensitivity in bifurcation problems is presented. The problems arise in the context of the general theory of elastic stability for discrete structural systems, in which the energy criterion of stability of structures and the total potential energy formulation are employed. In cases of bifurcation buckling
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2001
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3. VIBRACIONES NO LINEALES E INESTABILIDADES DE ELEMENTOS EXTRUCTURALES SENCIBLES A IMPERFECCIONES / NONLINEAR VIBRATION AND STRUCTURE STABILITY ANALYSIS OF IMPERFECTION SENSITIVE ELEMENTS / VIBRAÇÕES NÃO-LINEARES E INSTABILIDADES DE ELEMENTOS ESTRUTURAIS SENSÍVEIS A IMPERFEIÇÕES
EL objetivo de esta tesis es estudiar los mecanismos de escape en sistemas extructurales que son sensibles a imperfecciones cuando son sometidos a ciertas clases de cargas dinámicas. Outro objetivo es identificar los parámetros que controlan el escape y crear criterios capaces de preveer la frontera de escape y la pérdida de estabilidad de la extructura e
Publicado em: 1999
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4. INSTABILIDADE DE CASCAS E PAINÉIS CILÍNDRICOS LAMINADOS DE MATERIAIS COMPÓSITOS / STABILITY ANALYSIS OF LAMINATED COMPOSITE CYLINDRICAL SHELLS AND PANELSSTABILITY ANALYSIS OF LAMINATED COMPOSITE CYLINDRICAL SHELLS AND PANELS / INESTABILIDAD DE CORTEZAS Y PANELES CILÍNDRICOS LAMINADOS DE MATERIALES COMPUESTOS
Este trabajo presenta un estudio de la inestabilidad y comportamiento no lineal y la inestabilidad de cortezas y paneles cilíndricos laminados de materiales compuestos. Con esta finalidad se desarrolla una formulación de alta orden de deformación cisallante que considera estos hechos en las relaciones deformación desplazamiento. EL comportamiento de la c
Publicado em: 1997
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5. Effect of thromboplastin and coagulometer interaction on the precision of the International Normalised Ratio.
AIMS--To examine the magnitude of thromboplastin and coagulometer interactions on the precision of International Normalised Ratio (INR) values when the manufacturers' recommended instrument specific International Sensitivity Index (ISI) values are adopted for the INR calculation. METHODS--The variability of INR values obtained from four automated phototopica