{"id":"https://openalex.org/keywords/strain-energy-function","display_name":"strain energy function","description":"A constitutive function expressing stored elastic energy as a function of deformation, used to model nonlinear material behavior.","display_name_alternatives":["elastic strain energy function","strain energy functions","strain energy density function"],"ids":{"openalex":"https://openalex.org/keywords/strain-energy-function","wikidata":null},"primary_topic":{"id":"https://openalex.org/T11366","display_name":"Elasticity and Material Modeling","score":0.7047,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11366","display_name":"Elasticity and Material Modeling","score":0.7047,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":2809,"cited_by_count":82837,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/strain-energy-function","updated_date":"2026-10-18T04:06:28","created_date":"2026-09-30T00:00:00"}