RESIDUAL STRESS MEASURING METHOD

Provided is a method capable of accurately measuring, in an object including a columnar shaft section and a tabular section projecting outward radially beyond an outer circumferential surface of the shaft section, a distribution of residual stress near a fillet surface interconnecting the shaft sect...

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Bibliographic Details
Main Authors YAMADA, MARIKO, OKITA, KEISUKE, MURAKAMI, KENJI, MIYAGAWA, MASAHIRO
Format Patent
LanguageEnglish
Polish
Published 28.02.2019
Subjects
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:Provided is a method capable of accurately measuring, in an object including a columnar shaft section and a tabular section projecting outward radially beyond an outer circumferential surface of the shaft section, a distribution of residual stress near a fillet surface interconnecting the shaft section and the tabular section. The method includes repeating a measurement cycle, which includes a step of cutting the object to form a new cutting surface and a step of measuring residual stress in a plurality of parts on the cutting surface. The cutting surface is a conical or cylindrical surface concentric with the axis of the shaft section, being through a reference position unchanged in the repeated measurement cycle. The reference position is desirably the center position of an arc of the fillet surface having the largest diameter on the central longitudinal cross-section of the object.
Bibliography:Application Number: PL14862243T