METHOD FOR DETERMINING MODULUS OF ELASTICITY OF MATERIAL Russian patent published in 2006 - IPC G01N3/32 

FIELD: methods for determining modulus of elasticity of material.

SUBSTANCE: method includes affecting a sample of researched material by freely falling indenter of ball-like shape with known properties and time between first and second impacts of indenter with sample are measured, while additionally measured is time of impact of indenter with sample. Calculation of modulus of elasticity is performed by means of mathematical resilient-viscous model with utilization of experimentally determined values, for that purpose system including sample of researched material and indenter is replaced at stage of their contact by mathematical resilient-viscous model. Preliminary value of rigidity coefficient of resilient element of given model is given and time between first and second impacts of model with sample are calculated, while selecting numeric value of viscosity coefficient of viscous element of mathematical resilient-viscous model, at which value of time between first and second impacts of indenter and sample coincide. At selected numeric value of viscosity coefficient of viscous element of model, time of impact of model and sample is calculated, while selecting numeric value of coefficient of rigidity of resilient material of model. Modulus of elasticity of researched material of sample is estimated on basis of numeric value of rigidity coefficient of resilient element of mathematical resilient-viscous model, at which time of impact of mathematical resilient-viscous model coincides with measured time of indenter impact.

EFFECT: increased trustworthiness, expanded area of possible use, simplification of method.

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