Mullin: Pattern switching in a cellular solid: potential...
Mar
17
Mon 4:00 PM
When Monday, March 17, 2008
Time
4:00 PM - 5:00 PM
Where Tech M416
Contact Danielle Jackson
847-491-5586
Group McCormick-Colloquia Engineering Sciences and Applied Mathematics
Applied Math Colloquium
Title: Pattern switching in a cellular solid: potential applications in phonic / photonic crystals.
Speaker: Tom Mullin, Manchester Centre for Nonlinear Dynamics, University of Manchester
Abstract: Periodic elastomeric cellular solids are subjected to uniaxial compression and novel transformations of the patterned structures are found upon reaching a critical value of applied load. The results a numerical investigation reveal that the pattern switch is triggered by a reversible elastic instability. Excellent quantitative agreement between numerical and experimental results is found and the transformations are found to be remarkably uniform across the samples. Moreover the phenomenon is found to be robust for a range of soft solids including rubber and jelly. Potential applications in phononic and photonic crystals will be discussed.
Title: Pattern switching in a cellular solid: potential applications in phonic / photonic crystals.
Speaker: Tom Mullin, Manchester Centre for Nonlinear Dynamics, University of Manchester
Abstract: Periodic elastomeric cellular solids are subjected to uniaxial compression and novel transformations of the patterned structures are found upon reaching a critical value of applied load. The results a numerical investigation reveal that the pattern switch is triggered by a reversible elastic instability. Excellent quantitative agreement between numerical and experimental results is found and the transformations are found to be remarkably uniform across the samples. Moreover the phenomenon is found to be robust for a range of soft solids including rubber and jelly. Potential applications in phononic and photonic crystals will be discussed.
