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Journal Club Theme of June 2009: Bimaterial interfaces in nature: attachment of tendon to bone

Submitted by Guy M. Genin on

The June journal club entry was written jointly with Stavros Thomopoulos  from the Department of Orthopaedic Surgery at the Washington University in St. Louis School of Medicine.

Looking for work done on multiple holes in composite plates

Submitted by fcuenca79 on

Hi all,

 I am looking for any literature on the solution the analysis of composite plates with multiple holes in them. I have been able to find plenty of information about single holes in composite plates but none on multiple hole interaction, hence this call for help.

 

Thank you in advance,

Fernando

Nonlinear oscillation of a dielectric elastomer balloon

Submitted by Jian ZHU on

This paper studies the dynamic behavior of a dielectric elastomer balloon subject to a combination of pressure and voltage.  When the pressure and voltage are static, the balloon may reach a state of equilibrium.  We determine the stability of the state of equilibrium, and calculate the natural frequency of the small-amplitude oscillation around the state of equilibrium.  When the voltage is sinusoidal, the balloon resonates at multiple frequencies of excitation, giving rise to superharmonic, harmonic, and subharmonic responses.  When the frequency of excitation varies c