RU92006836A - SAMPLE AND METHOD FOR ITS FATIGUE TESTS WITH COMPLEX STRESSED CONDITION - Google Patents

SAMPLE AND METHOD FOR ITS FATIGUE TESTS WITH COMPLEX STRESSED CONDITION

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Publication number
RU92006836A
RU92006836A RU92006836/28A RU92006836A RU92006836A RU 92006836 A RU92006836 A RU 92006836A RU 92006836/28 A RU92006836/28 A RU 92006836/28A RU 92006836 A RU92006836 A RU 92006836A RU 92006836 A RU92006836 A RU 92006836A
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RU
Russia
Prior art keywords
sample
central
fatigue characteristics
fatigue
stressed condition
Prior art date
Application number
RU92006836/28A
Other languages
Russian (ru)
Other versions
RU2089875C1 (en
Inventor
В.Д. Протасов
О.И. Казаев
Е.С. Лихов
В.М. Манин
В.А. Черниченко
Original Assignee
Центральный научно-исследовательский институт специального машиностроения
Filing date
Publication date
Application filed by Центральный научно-исследовательский институт специального машиностроения filed Critical Центральный научно-исследовательский институт специального машиностроения
Priority to RU92006836A priority Critical patent/RU2089875C1/en
Priority claimed from RU92006836A external-priority patent/RU2089875C1/en
Publication of RU92006836A publication Critical patent/RU92006836A/en
Application granted granted Critical
Publication of RU2089875C1 publication Critical patent/RU2089875C1/en

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Claims (1)

Предлагаемое решение позволяет моделировать напряженное состояние натурного изделия типа гребного вала, выполненного из композита, и повысить достоверность получаемых усталостных характеристик. Для испытаний используют образец, состоящий из двух элементов: наружного трубчатого, имитирующего изделия, и центрального, служащего фиксатором нагруженного состояния трубчатого элемента. Наружный трубчатый элемент имеет возможность осевого перемещения относительно центрального благодаря шлицевым, шпоночным или зубчатым соединениям с опорными элементами и их зажимами, благодаря чему нагруженный статическим крутящим моментом образец при испытаниях на усталость при непрерывном вращении подвергают одновременно не только циклическому изгибу, но и нагрузкам на сжатие или растяжение. Усталостные характеристики определяют с учетом влияния калиброванной зависимости усталостных характеристик центрального элемента, выполненного с заданной крутильной жесткостью из высокопрочной стали.The proposed solution allows to simulate the stress state of a full-scale product such as a propeller shaft made of a composite, and to increase the reliability of the resulting fatigue characteristics. For testing, a sample consisting of two elements is used: an external tubular imitating product, and a central one serving as a fixator of the loaded state of the tubular element. The outer tubular element is axially displaceable relative to the central due to splined, keyed or toothed connections with supporting elements and their clamps, so that the sample, when tested for fatigue during continuous rotation, is subjected not only to cyclic bending, but also to compressive loads or stretching. The fatigue characteristics are determined taking into account the effect of the calibrated dependence of the fatigue characteristics of the central element, made with a given torsional stiffness of high-strength steel.
RU92006836A 1992-11-17 1992-11-17 Specimen for fatigue test under complex stressed state and method of fatigue test under complex stressed state RU2089875C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU92006836A RU2089875C1 (en) 1992-11-17 1992-11-17 Specimen for fatigue test under complex stressed state and method of fatigue test under complex stressed state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU92006836A RU2089875C1 (en) 1992-11-17 1992-11-17 Specimen for fatigue test under complex stressed state and method of fatigue test under complex stressed state

Publications (2)

Publication Number Publication Date
RU92006836A true RU92006836A (en) 1995-02-27
RU2089875C1 RU2089875C1 (en) 1997-09-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU92006836A RU2089875C1 (en) 1992-11-17 1992-11-17 Specimen for fatigue test under complex stressed state and method of fatigue test under complex stressed state

Country Status (1)

Country Link
RU (1) RU2089875C1 (en)

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