Determination accuracy enhancement of viscoelastic constitutive model of optical glass

• Published in: Materials & design Vol. 236; p. 112513
• Main Authors: Liu, Guangyu, Fang, Fengzhou
• Format: Journal Article
• Language: English
• Published: Elsevier 01.12.2023
• Subjects: Aspheric lens; Finite element method; Precision glass molding; Viscoelastic constitutive model

This study proposes an effective method for improving the determination accuracy of the viscoelastic constitutive model via the combination of uniaxial creep with stress relaxation and the use of creep data to correct stress relaxation curves, known as “stress relaxation and creep correction (SRCC)....