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<DIV><FONT face=Arial size=2>Les recordamos el Coloquio de hoy</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><FONT face="Times New Roman"
size=3> COLOQUIOS DEL DEPARTAMENTO DE
FÍSICA<BR>
FCEyN -
UBA<BR><BR>
Charla, café y
masitas<BR> En
el Aula Federman, 1er piso Pabellón
I.<BR>
Ciudad Universitaria</FONT> </DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2><FONT face="Times New Roman"
size=3> <STRONG>Hoy</STRONG> jueves 12
de julio a las 14 hs<FONT face=Arial size=2>
</FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><FONT face="Times New Roman"
size=3></FONT></FONT> </DIV>
<DIV><FONT face=Arial size=2><FONT size=3><SPAN
style="FONT-SIZE: 24pt; FONT-FAMILY: Verdana; mso-bidi-font-size: 12.0pt; mso-bidi-font-weight: bold"><SPAN
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size=5><STRONG> </STRONG>Modelos mesoscópicos de comportamiento
</FONT></FONT></SPAN></SPAN></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><FONT size=3><SPAN
style="FONT-SIZE: 24pt; FONT-FAMILY: Verdana; mso-bidi-font-size: 12.0pt; mso-bidi-font-weight: bold"><SPAN
class=MquinadeescribirHTML2><SPAN lang=ES-AR
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT face="Times New Roman"><FONT
size=5>
mécanico de policristales</FONT></FONT></SPAN></SPAN></SPAN></FONT></FONT></DIV>
<DIV><STRONG><FONT face=Arial size=2><FONT face="Times New Roman" size=5><SPAN
style="FONT-SIZE: 24pt; FONT-FAMILY: Verdana; mso-bidi-font-size: 12.0pt; mso-bidi-font-weight: bold"><SPAN
class=MquinadeescribirHTML2><SPAN lang=ES-AR
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></SPAN></SPAN></FONT></FONT><FONT
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face=Arial size=2><FONT face=Arial size=2><FONT face="Times New Roman"><FONT
size=3></FONT></FONT></FONT></FONT></FONT></STRONG> </DIV>
<DIV align=left><FONT face=Arial size=2><FONT face=Arial size=2><FONT face=Arial
size=2><FONT face="Times New Roman"><FONT
size=3> </FONT><FONT
size=4><STRONG> </STRONG> <STRONG>Ricardo A.
Lebensohn</STRONG></FONT></FONT></FONT></FONT></FONT></DIV>
<DIV align=left><FONT face=Arial size=2><FONT face=Arial size=2><STRONG><FONT
face="Times New Roman" size=4></FONT></STRONG><SPAN
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"> <SPAN
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face="Times New Roman" size=4>Materials Science and Technology
Division</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
style="FONT-SIZE: 12pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"><SPAN
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face="Times New Roman"
size=4>
Los Alamos National Laboratory</FONT></SPAN></SPAN></DIV>
<DIV><SPAN
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size=3> </FONT></SPAN><FONT
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</FONT></SPAN></DIV>
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style="mso-ansi-language: ES-AR"></SPAN>-----------------------------------------------------------------------------------------------------------------------------------------------</P>
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<DIV><FONT face="Times New Roman" size=3>RESUMEN:</FONT></DIV>
<DIV><SPAN style="mso-ansi-language: ES"><?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><O:P><FONT face="Times New Roman"
size=3> </FONT></O:P></SPAN></DIV>
<DIV align=justify><SPAN style="mso-ansi-language: ES"><O:P></O:P></SPAN><SPAN
style="mso-ansi-language: ES"><O:P><SPAN
style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><SPAN
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"><SPAN
style="FONT-SIZE: 18pt; mso-bidi-font-size: 12.0pt"><FONT
face="Times New Roman"><FONT size=3><SPAN class=MquinadeescribirHTML2><SPAN
lang=ES-AR style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT
face="Times New Roman"><FONT size=3><FONT face="Century Gothic" color=black
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Century Gothic'"><FONT
face="Times New Roman" size=3>En la primera parte discutiremos el actual
paradigma multiscala para la<BR>simulación de propiedades mecánicas de
materiales, cuyo objetivo es<BR>relacionar modelos formulados a distintas
escalas, con el fin de obtener<BR>predicciones de comportamiento mecánico que
contengan la mayor cantidad<BR>posible de información microestructural.<BR><BR>A
continuación nos concentraremos en la escala mesoscópica y presentaremos<BR>un
método numérico basado en la Transformada Rápida de Fourier (FFT)
para<BR>obtener los campos micromecánicos en policristales
tridimensionales<BR>deformados plásticamente. Mostraremos: a) predicciones de
evolución de<BR>orientaciones y desorientaciones promedio en los granos de un
policristal<BR>de cobre, deformado en tracción, utilizando imágenes obtenidas
por medio<BR>de Microscopía de Imágenes de Orientación (OIM) y b) cómo la
formulación<BR>"de campo completo" puede ser utilizada para evaluar la precisión
de<BR>distintos métodos de homogeneización (o "de campo medio") disponibles
para<BR>la predicción del comportamiento mecánico de
policristales.<BR></FONT></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></FONT></SPAN></SPAN></SPAN></O:P></SPAN></DIV>
<DIV align=justify><SPAN style="mso-ansi-language: ES"><O:P><SPAN
style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><SPAN
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"><SPAN
style="FONT-SIZE: 18pt; mso-bidi-font-size: 12.0pt"><FONT
face="Times New Roman"><FONT size=3><SPAN class=MquinadeescribirHTML2><SPAN
lang=ES-AR style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT
face="Times New Roman"><FONT size=3><FONT face="Century Gothic" color=black
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Century Gothic'"><FONT
face="Times New Roman"
size=3>-----------------------------------</FONT></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></FONT></SPAN></SPAN></SPAN></O:P></SPAN></DIV>
<DIV align=justify><SPAN style="mso-ansi-language: ES"><O:P><SPAN
style="FONT-SIZE: 16pt; mso-bidi-font-size: 12.0pt"><SPAN
style="FONT-SIZE: 16pt; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-ansi-language: ES; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ES; mso-bidi-language: AR-SA"><SPAN
style="FONT-SIZE: 18pt; mso-bidi-font-size: 12.0pt"><FONT
face="Times New Roman"><FONT size=3><SPAN class=MquinadeescribirHTML2><SPAN
lang=ES-AR style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><FONT
face="Times New Roman"><FONT size=3><FONT face="Century Gothic" color=black
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Century Gothic'"><FONT
face="Times New Roman" size=3>Estan todos
invitados!</DIV></FONT></SPAN></FONT></FONT></FONT></SPAN></SPAN></FONT></FONT></SPAN></SPAN></SPAN></O:P></SPAN></FONT></FONT></FONT></FONT></FONT></BODY></HTML>