Reference ellipsoids can be used in either on of two ways: via using theenumclassngpt::ellipsoid(e.g.ngpt::ellipsoid::grs80), or via the classngpt::Ellipsoid Users can easily add more reference ellipsoids if they need to, via constructing anEllipsoidinstance with the wanted parameters (aka ...
The color map corresponds to the value of the ratio \({\dot{\epsilon }}_{xx}/\dot{\epsilon }\) where a maximum value of \(\sqrt{2}\) signifies a purely extensional flow regime. The range of stresses used in this plot span 65–165 kPa, and the range of strain-rates spans 0.001...