6533b862fe1ef96bd12c758b

RESEARCH PRODUCT

Reliability Estimation of Optimal Viscoelastic Composite Shells in Critical-Time Calculations

G. Teters

subject

Critical timeMaterials sciencePolymers and Plasticsbusiness.industryGeneral MathematicsComposite numberShell (structure)Structural engineeringMechanicsCondensed Matter PhysicsViscoelasticityBiomaterialsMechanics of MaterialsSolid mechanicsCeramics and CompositesMinificationComposite materialbusinessRandom variableReliability (statistics)

description

The problem of reliability estimation for optimal viscoelastic composite shells in critical-time calculations is considered. The weight minimization of a viscoelastic composite shell, with constraints on deflections at the critical time, leads to a system deforming unstably, whose deflections grow in time with an increasing rate. A method for estimating the reliability of such shells in calculating the critical time is discussed. This time is regarded as a random variable depending on many, roughly equivalent, factors. An analysis of the reliability is carried out for different values of coefficients of variation, occurring in practice.

yearjournalcountryeditionlanguage
2003-11-01Mechanics of Composite Materials
https://doi.org/10.1023/b:mocm.0000010627.44159.72