RU97119598A - METHOD FOR DETERMINING ELASTIC-PLASTIC DEFORMATIONS OF MATERIALS - Google Patents

METHOD FOR DETERMINING ELASTIC-PLASTIC DEFORMATIONS OF MATERIALS

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Publication number
RU97119598A
RU97119598A RU97119598/28A RU97119598A RU97119598A RU 97119598 A RU97119598 A RU 97119598A RU 97119598/28 A RU97119598/28 A RU 97119598/28A RU 97119598 A RU97119598 A RU 97119598A RU 97119598 A RU97119598 A RU 97119598A
Authority
RU
Russia
Prior art keywords
hole
deformation
indenter
work
depth
Prior art date
Application number
RU97119598/28A
Other languages
Russian (ru)
Other versions
RU2141637C1 (en
Inventor
Ю.А. Зайченко
В.В. Косаревский
Original Assignee
Инженерный центр "Сплав"
Filing date
Publication date
Application filed by Инженерный центр "Сплав" filed Critical Инженерный центр "Сплав"
Priority to RU97119598/28A priority Critical patent/RU2141637C1/en
Priority claimed from RU97119598/28A external-priority patent/RU2141637C1/en
Publication of RU97119598A publication Critical patent/RU97119598A/en
Application granted granted Critical
Publication of RU2141637C1 publication Critical patent/RU2141637C1/en

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Claims (3)

1. Способ определения упруго-пластических деформаций материалов, включающий нанесение индентором лунки с последующим измерением прочностных характеристик исследуемого образца, отличающийся тем, что на исследуемом образце принудительно задают длину лунки, которую путем маятникового деформатора наносят сферическим индентором, при этом работу, совершаемую последним для образования лунки определяют по шкале деформатора, а по глубине лунки и радиусу индентора определяют степень упруго-пластическому деформированию металла по формуле:
Figure 00000001

где n - степень деформации;
h - глубина лунки, мм;
r - радиус индентора, мм.1. A method for determining elasto-plastic deformations of materials, including applying an indenter to a well, followed by measuring the strength characteristics of the test sample, characterized in that the length of the well is forcibly set on the test sample, which is applied by a spherical indenter with a pendulum deformer, and the work done last to form the holes are determined on the scale of the deformer, and the degree of elastic-plastic deformation of the metal is determined by the depth of the hole and the indenter radius according to the formula:
Figure 00000001

where n is the degree of deformation;
h is the depth of the hole, mm;
r is the indenter radius, mm. 2. Способ по п.1, отличающийся тем, что зависимость степени деформации от глубины внедрения индентора выражают номограммой, по которой с дополнительным измерением фактической глубины лунки после динамических нагрузок определяют границы пластической и упругой деформации материала. 2. The method according to claim 1, characterized in that the dependence of the degree of deformation on the penetration depth of the indenter is expressed by a nomogram, according to which, with an additional measurement of the actual depth of the hole after dynamic loads, the boundaries of the plastic and elastic deformation of the material are determined. 3. Способ по п.1, отличающийся тем, что работу образования лунки используют как оценочный критерий по сопротивляемости металла деформациям и рассчитывают в соответствии с выражением:
А = А1 - А2,
где А - работа по образованию лунки, кгм;
А1 - работа, соответствующая подъему маятника без нанесения лунки, кгм.3. The method according to claim 1, characterized in that the work of the formation of the hole is used as an evaluation criterion for the resistance of the metal to deformation and calculated in accordance with the expression:
A = A 1 - A 2 ,
where A is the work on the formation of the hole, kgm;
And 1 is the work corresponding to the lifting of the pendulum without applying a hole, kgm. А2 - работа, выполненная падающим маятником в случае нанесения лунки на образец.And 2 - the work performed by the falling pendulum in the case of applying the hole to the sample.
RU97119598/28A 1997-11-26 1997-11-26 Method determining plasto-elastic deformations of materials RU2141637C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97119598/28A RU2141637C1 (en) 1997-11-26 1997-11-26 Method determining plasto-elastic deformations of materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97119598/28A RU2141637C1 (en) 1997-11-26 1997-11-26 Method determining plasto-elastic deformations of materials

Publications (2)

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RU97119598A true RU97119598A (en) 1999-08-20
RU2141637C1 RU2141637C1 (en) 1999-11-20

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Publication number Priority date Publication date Assignee Title
RU2475720C2 (en) * 2010-12-24 2013-02-20 Государственное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Evaluation method of activation energy of plastic deformation of surface layer, and portable sclerometer for its implementation

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