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UID:news1728@dmi.unibas.ch
DTSTAMP;TZID=Europe/Zurich:20241127T162336
DTSTART;TZID=Europe/Zurich:20241206T110000
SUMMARY:Seminar in Numerical Analysis: Alexandre Imperiale (CEA Paris-Sacla
 y) 
DESCRIPTION:We consider the problem of transient wave propagation within tw
 o domains linked with smooth nonlinear contact conditions at a common inte
 rface. While standard linear elastodynamics is assumed within each domain\
 , at the interface we consider continuity of normal stresses\, and (more i
 mportantly) a smooth finite compressibility law. We propose an energy pre
 serving – thus stable – time scheme based upon [1]\, and devise an eff
 icient time-marching algorithm. We validate our approach with semi-analyti
 cal results\, and illustrate typical nonlinear waves phenomena (harmonics\
 , zero-frequency components) in 2D.\\r\\nReferences\\r\\n[1] O. Gonzalez\,
  Exact energy and momentum conserving algorithms for general models in non
 linear elasticity\, Comput. Methods Appl. Mech. Eng.\, 2000\, 190(13-14)\,
  1763-1783.\\r\\nFor further information about the seminar\, please visit 
 this webpage [t3://page?uid=1115].
X-ALT-DESC:<p>We consider the problem of transient wave propagation within 
 two domains linked with smooth nonlinear contact conditions at a common in
 terface. While standard linear elastodynamics is assumed within each domai
 n\, at the interface we consider continuity of normal stresses\, and (more
  importantly) a smooth finite compressibility law.&nbsp\;We propose an ene
 rgy preserving – thus stable – time scheme based upon [1]\, and devise
  an efficient time-marching algorithm. We validate our approach with semi-
 analytical results\, and illustrate typical nonlinear waves phenomena (har
 monics\, zero-frequency components) in 2D.</p>\n<p>References</p>\n<p>[1] 
 O. Gonzalez\, Exact energy and momentum conserving algorithms for general 
 models in nonlinear elasticity\, Comput. Methods Appl. Mech. Eng.\, 2000\,
  190(13-14)\, 1763-1783.</p>\n<p>For further information about the seminar
 \, please visit this <a href="t3://page?uid=1115" title="Opens internal li
 nk in current window">webpage</a>.</p>
DTEND;TZID=Europe/Zurich:20241206T120000
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