SU1441250A1 - Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part - Google Patents

Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part Download PDF

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Publication number
SU1441250A1
SU1441250A1 SU874198752A SU4198752A SU1441250A1 SU 1441250 A1 SU1441250 A1 SU 1441250A1 SU 874198752 A SU874198752 A SU 874198752A SU 4198752 A SU4198752 A SU 4198752A SU 1441250 A1 SU1441250 A1 SU 1441250A1
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SU
USSR - Soviet Union
Prior art keywords
plastic deformation
resistance
endurance limit
effect
bending
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Application number
SU874198752A
Other languages
Russian (ru)
Inventor
Николай Натанович Вассерман
Виктор Андреевич Гладковский
Вячеслав Евгеньевич Калугин
Игорь Евгеньевич Ковалев
Владимир Андреевич Субботин
Original Assignee
Пермский политехнический институт
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Priority to SU874198752A priority Critical patent/SU1441250A1/en
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Publication of SU1441250A1 publication Critical patent/SU1441250A1/en

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Abstract

Изобретение относитс  к исследовани м вли ни  предварительного пластического деформировани  на предел выносливости материала. Целью изобретени   вл етс  повьшение достоверности путем учета пластического деформировани  также и от кручени . Из заготовки вырезают образец равного сопротивлени  консольному изгибу и неравного сопротивлени  раст жению и кручению, нагружают его раст жением или крушением до образовани  переменных по длине образца пластических деформаций,, испытывают образец на усталость циклическим консольным изгибом и по данным испытаний определ ют минимальный предел выносливости с учетом величиШ) предварительной де- § формации. 1 ил. (ЛThe invention relates to the study of the effect of pre-plastic deformation on the fatigue limit of a material. The aim of the invention is to increase the reliability by taking into account plastic deformation also from torsion. A sample of equal resistance to cantilever bending and unequal resistance to stretching and torsion is cut out of the billet, loaded with stretching or crushing until plastic deformations varying along the length of the specimen are tested for fatigue by cyclic cantilever bending and according to test data the minimum endurance limit magnitude) of preliminary deformation. 1 il. (L

Description

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Claims (1)

Формула изобретенияClaim Способ исследования влияния предварительного пластического деформирования на предел выносливости материала детали, заключающийся в том, что из заготовки детали вырезают образец равного сопротивления изгибу, нагружают его растяжением до образования переменной по длине образца пласти ческой деформации, нагружают цикли.ческим изгибом и определяют минимальный предел выносливости с учетом величины его предварительной деформации, отличающийся тем, что, с целью повышения достоверности путем учета пластического деформирования также и от кручения, вырезают образец равного сопротивления консольному изгибу и неравномерного сопротивления растяжению и кручению, а циклическое нагружение осуществляютA method for studying the effect of preliminary plastic deformation on the endurance limit of a material of a part, namely, that a specimen of equal bending resistance is cut out of a workpiece, loaded with tension until a plastic strain variable along the length of the specimen is formed, loaded with cyclic bending, and the minimum endurance limit is determined with taking into account the magnitude of its preliminary deformation, characterized in that, in order to increase reliability by taking into account plastic deformation, it also -Large, excised sample console equal resistance to bending and resistance to uneven tension and torsion, and cyclic loading is carried out Заказ 6279/45 Тираж 847 ПодписноеOrder 6279/45 Circulation 847 Subscription ВНИИПИ Государственного комитета СССР по делам изобретений и открытийVNIIIPI of the USSR State Committee for Inventions and Discoveries 113035, Москва, Ж-35, Раушская наб., д. 4/5113035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Производственно-полиграфическое предприятие, г. Ужгород, ул. Проектная, 4Production and printing company, Uzhhorod, st. Project, 4
SU874198752A 1987-02-24 1987-02-24 Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part SU1441250A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874198752A SU1441250A1 (en) 1987-02-24 1987-02-24 Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874198752A SU1441250A1 (en) 1987-02-24 1987-02-24 Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part

Publications (1)

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SU1441250A1 true SU1441250A1 (en) 1988-11-30

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Application Number Title Priority Date Filing Date
SU874198752A SU1441250A1 (en) 1987-02-24 1987-02-24 Method of investigating the effect of preceding plastic deformation on endurance limit of the material of a part

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 1221540, кл. G 01 N 3/32, 1984. *

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