User login

Navigation

You are here

Creases in soft tissues generated by growth

Lihua Jin's picture

Soft tissues growing under constraint often form creases.  We adopt the model of growth that factors the deformation gradient into a growth tensor and an elastic deformation tensor, and show that the critical conditions for the onset of creases take a remarkably simple form. The critical conditions are illustrated with tubes of tissues growing either inside a rigid shell or outside a rigid core.  By comparing the critical conditions for the onset of wrinkles, we show that the creases are the preferred type of instability.  Furthermore, deep creases in a tube are simulated by using the finite-element method, and the number of creases in the tube is estimated by minimizing free energy.

http://www.seas.harvard.edu/suo/papers/253.pdf

Subscribe to Comments for "Creases in soft tissues generated by growth "

More comments

Syndicate

Subscribe to Syndicate