Bovine brain tissue has been tested in shear under oscillatory, relaxation and constant strain rate test protocols. Compression data has been obtained in confined compression. The data from these tests suggests that brain tissue is a highly nonlinear viscoelastic material, with a linear viscoelastic limit of approximately 0.1% strain. The storage and loss modulus are strain dependent above this loading level, requiring careful interpretation of oscillatory data. Brain tissue is also highly strain rate dependent, not strain-time separable, and exhibits a low long term elastic modulus. Modelling the complex behaviour is a challenge.

This content is only available via PDF.
You do not currently have access to this content.