SU1364955A1 - Method of determining fatigue damage to material - Google Patents

Method of determining fatigue damage to material Download PDF

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Publication number
SU1364955A1
SU1364955A1 SU853849119A SU3849119A SU1364955A1 SU 1364955 A1 SU1364955 A1 SU 1364955A1 SU 853849119 A SU853849119 A SU 853849119A SU 3849119 A SU3849119 A SU 3849119A SU 1364955 A1 SU1364955 A1 SU 1364955A1
Authority
SU
USSR - Soviet Union
Prior art keywords
fatigue damage
dependence
area
damage
cycles
Prior art date
Application number
SU853849119A
Other languages
Russian (ru)
Inventor
Иван Федорович Дьяков
Григорий Зеликович Стильбанс
Original Assignee
Ульяновский политехнический институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ульяновский политехнический институт filed Critical Ульяновский политехнический институт
Priority to SU853849119A priority Critical patent/SU1364955A1/en
Application granted granted Critical
Publication of SU1364955A1 publication Critical patent/SU1364955A1/en

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Description

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ВНШИБ Заказ 6544/36VNSHIB Order 6544/36

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Тираж 717Circulation 717

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Claims (1)

СПОСОБ ОПРЕДЕЛЕНИЯ НОГО ПОВРЕЖДЕНИЯ МАТЕРИАЛА, рому образец материала подвергают знакопеременному циклическому’нагружению, измеряют число циклов нагружеУСТАЛОСТпо котония и площадь петли гистерезиса и по зависимости площади петли гистерезиса от числа циклов нагружения судят об усталостном повреждении, отличающийся тем, что, с целью повышения точности за счет регистрации начала возникновения и скорости роста микротрещин в материале, измеряют твердость материала, устанавливают ее зависимость от числа N циклов нагружения, определяют по этой зависимости количество Ν’* циклов нагружения, при котором твердость имеет максимальное значение, а о повреждении материала судят по изменению площади петли гистерезиса при N’ N*.METHOD FOR DETERMINING KNOW DAMAGE TO THE MATERIAL, the material sample is subjected to alternating cyclic loading, the number of cycles of stress is measured, the area of the hysteresis loop and the dependence of the area of the hysteresis loop on the number of loading cycles are used to determine fatigue damage, which is more accurate because recording the onset and growth rate of microcracks in the material, measure the hardness of the material, establish its dependence on the number N of loading cycles, determine according to this dependence, the number of Ν ’* loading cycles at which the hardness is at its maximum and damage to the material is judged by the change in the area of the hysteresis loop at N’ N *. ФF СО 05 4* ς© СЛ слСО 05 4 * ς © СЛ Сл
SU853849119A 1985-01-21 1985-01-21 Method of determining fatigue damage to material SU1364955A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU853849119A SU1364955A1 (en) 1985-01-21 1985-01-21 Method of determining fatigue damage to material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU853849119A SU1364955A1 (en) 1985-01-21 1985-01-21 Method of determining fatigue damage to material

Publications (1)

Publication Number Publication Date
SU1364955A1 true SU1364955A1 (en) 1988-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU853849119A SU1364955A1 (en) 1985-01-21 1985-01-21 Method of determining fatigue damage to material

Country Status (1)

Country Link
SU (1) SU1364955A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Трощенко В.Т. Усталость и неупругость металлов. - Киев, Наукова думка, 1971, с.203-205. *

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