Donut-shaped elastic torus and its cross-section.

On the Stress Field of a Nonlinear Elastic Solid Torus with a Toroidal Inclusion

Small symmetrical deformation of thin torus with circular cross-section - ScienceDirect

Donut-shaped elastic torus and its cross-section.

How the donut changed the world - @

Can one calculate the volume of a torus by pretending it's a cylinder? - Quora

Takahiro TOMIOKA, Professor (Full), Doctor of Engineering, Akita Prefectural University, Akitashi, Department of Mechanical Engineering

A solid torus and its toroidal coordinates in the undeformed configuration

What shape is a donut? - Quora

Torus -- from Wolfram MathWorld

Toroidal shells and cross-sectional view. Toroidal shells and geometry.

Geometry-induced rigidity in elastic torus from circular to oblique elliptic cross-section - ScienceDirect