Susanna Phelps Gage Susanna Phelps Gage Susanna Phelps Gage (1857–1915) was an American embryologist and comparative anatomist. She initially worked on the anatomy of small animals and humans, later shifting into neurology to study the embryological development of the brain and the anatomy of the human nervous system. She also developed a new and widely adopted method for making anatomical teaching models out of paper rather than wax. Although Susanna Phelps Gage was a respected embryologist and camparative anatomist, her work was often ignored. Like most other women scientists of the late 19th and early 20th centuries who were married to scientists, Gage's
Hypoelastic material Hypoelastic material In continuum mechanics, a hypoelastic material is an elastic material that has a constitutive model independent of finite strain measures except in the linearized case. Hypoelastic material models are distinct from hyperelastic material models (or standard elasticity models) in that, except under special circumstances, they cannot be derived from a strain energy density function. A hypoelastic material can be rigorously defined as one that is modeled using a constitutive equation satisfying the following two criteria: 1. The Cauchy stress formula_1 at time formula_2 depends only on the order in which the body has occupied its past configurations, but