title: A method for measuring strains in soft tissue.
abstract: A finite element based method has been developed for measuring strains in soft tissue. An array of markers is placed on the tissue surface and treated as nodes of a four node isoparametric element. The displacements of the marker centroids are directly measured using a high sensitivity television camera. Finite element method mathematics are then used to calculate the plane strain tensor at any point inside the element. The method has been implemented using non-rectangular elements that are approximately 2 mm on each side.
mesh_terms: D000818:Animals; D002415:Cats; D003094:Collagen / Q000502:physiology*; D008433:Mathematics; D008465:Mechanoreceptors / Q000503:physiopathology; D013180:Sprains and Strains / Q000503:physiopathology*; D013314:Stress, Mechanical
chemical_list: D003094:Collagen