A theoretical testing method for fully characterising the Mooney-Rivlin three-parameter hyper-elastic material model is proposed by capturing full-field digital image correlation (DIC) data, namely displacement field and indentation force data. finite element with known parameters will act as experimental against which all data be referenced (a preliminary test case). Going forward this stand-i...

We consider three-dimensional nonlinear viscoelastic models that account for both stress relaxation and creep/recovery phenomena. These are based on different frame indifferent time derivatives: the Oldroyd (or upper-convected) derivative, Jaumann co-rotational) derivative Cotter–Rivlin lower-convected) derivative. Under a simple tension creep process, these constitutive equations predict same ...

This research shows an image processing method to determine the liver tissue’s mechanical behavior under physiological damage caused by fibrosis pathology. The proposed consists of using a tissue CAD/CAE model obtained from tomography human abdomen, where diaphragmatic surface this is compressed moving flat surface. For work, two tools were created—the first analyze deformations and second disp...