SU735959A1 - Method of impact testing of materials for bending - Google Patents

Method of impact testing of materials for bending Download PDF

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Publication number
SU735959A1
SU735959A1 SU772539736A SU2539736A SU735959A1 SU 735959 A1 SU735959 A1 SU 735959A1 SU 772539736 A SU772539736 A SU 772539736A SU 2539736 A SU2539736 A SU 2539736A SU 735959 A1 SU735959 A1 SU 735959A1
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SU
USSR - Soviet Union
Prior art keywords
bending
materials
sample
support
impact testing
Prior art date
Application number
SU772539736A
Other languages
Russian (ru)
Inventor
Виктор Михайлович Борисов
Лидия Александровна Борисова
Original Assignee
Borisov Viktor M
Borisova Lidiya A
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Application filed by Borisov Viktor M, Borisova Lidiya A filed Critical Borisov Viktor M
Priority to SU772539736A priority Critical patent/SU735959A1/en
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Publication of SU735959A1 publication Critical patent/SU735959A1/en

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Description

(54) СПСЮОБ УДАРНЫХ ИСПЫТАНИЙ МАТЕРИАЛОВ НА ИЗГИБ(54) FETTING BENDING MATERIALS FOR BENDING

1one

Изобретение касаетс  испытаний ма т-ериалов.The invention relates to testing materials.

Известен способ ударных испытаний материалов на изгиб, по которому образец с односторонним надрезом устанавливают на опорах и прикладывают к нему ударную изгибающую нагрузку с помощью падающего ударника l . /There is a method of shock testing materials for bending, according to which a sample with a one-sided notch is mounted on supports and an impact bending load is applied to it with the help of a falling striker l. /

Однако при реализации такого способа происходит см тие торцов-изломов половинок образцов, что снижает информативность о свойствах- и характеристиках испытуемых материалов.However, when such a method is implemented, the ends of kinks of the halves of the specimens are smeared, which reduces the information content on the properties and characteristics of the tested materials.

Наиболее близким к изобретению по технической сущности-и достигаемому результату  вл етс  способ ударных испытаний материалов на изгиб, заключаюпшйс  в том, что центральную часть образца устанавливают на опору, фиксируют его и прикладьтают к нему ударную изгибную нагрузку 2. The closest to the invention to the technical essence and the achieved result is the method of impact testing of materials for bending, which means that the central part of the specimen is mounted on a support, fixed and applied to it a shock bending load 2.

Фиксаци  осуществл етс  второй опорой в виде упругого элемента, который устанавливаетс  с противоположной стороны образца у его конца, а нагрузку прикладывают к другому концу образца, на котором закрепл етс  груг.The fixation is carried out by the second support in the form of an elastic element, which is installed on the opposite side of the sample at its end, and the load is applied to the other end of the sample, on which a circle is attached.

Недостатком известного способа  вл етс  недостаточна  точность испытаний за счет того, что при прикладывании ударной нагрузки к одному концу образ- ца последний может поворачиватьс  на опоре из-за податливости второй опоры. При этом повороте надрез- окажетс  A disadvantage of the known method is the insufficient accuracy of the tests due to the fact that when a shock load is applied to one end of the sample, the latter can rotate on the support due to the flexibility of the second support. At this turn, the notch will

10 не над опорой, и исходна  точка контакта центральной части образца с Опорой может сместитьс , что приведет к нерасчетному положению сечени , подвергающемус  испытанию на разрушетше, 10 is not above the support, and the initial point of contact of the central part of the sample with the Support may shift, which will lead to the non-design position of the section, which will be subjected to a destructive test,

15 а следовательно, и к знaчитeльньDvI погрешност м испытани .15 and, consequently, to a significant DvI test error.

Целью изобретени   вл етс  повышение точности.The aim of the invention is to improve the accuracy.

2020

Это достигаетс  тем, что ударную нагрузку прикладывают опковременно к обоим концам образца, а фиксируют образец поджат1гем его к опоре.This is achieved by applying a shock load back and forth to both ends of the sample, and fixing the sample by pressing it against the support.

На чертеже дана схема реализации способа.The drawing is a diagram of the implementation of the method.

Центральную часть образца 1 устанавливают на опору 2 и фиксируют его поджатио к опоре 2 с помощью прижимного элемента {на чертеже не показан), выполненного либо с профилет заточки дл  образца с надрезом, либо плоским дл  образца без надреза. Затем прикладьюают ударную нзгибную нагрузку одновременно к обоим концам образца 1 с помощью двух жестких ударагпсов vThe central part of sample 1 is mounted on support 2 and is clamped to support 2 by means of a clamping element (not shown), made either with a sharpening profile for a notched specimen or flat for an uncut notch specimen. Then, a shock load is applied simultaneously to both ends of Sample 1 with the help of two hard impact strokes v

Сгохзоб осуществл етс  следующим образом .The design is carried out as follows.

При взаимодействии с ударниками 3 образец 1 разрушаетс , при этом разломанные его половинь падают вниз торцами-изломами кверху, что искшочает их см тие.When interacting with the impactors 3, sample 1 is destroyed, and the broken halves of it fall down with their butt-ends up, which disturbs their smog.

ПоЁьпыение точности испытаний достиf аетсй за счет того, что исключаетс  поворот испытуемого образца .1 на опо . . JThe test accuracy is achieved due to the fact that the test specimen .1 is not rotated. . J

ре 2 как твердого тела во врем  ударных испытаний.re 2 as a solid during shock tests.

Claims (2)

1.Ударные испытани  металлов. - М Мир, 1973, с. 248-249.1. Impact testing of metals. - M Mir, 1973, p. 248-249. 2.Авторское свидетельство СССР NO 6O0414V кл. G 01 N 3/30, 1976 (прототип).2. USSR Author's Certificate NO 6O0414V Cl. G 01 N 3/30, 1976 (prototype).
SU772539736A 1977-10-24 1977-10-24 Method of impact testing of materials for bending SU735959A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772539736A SU735959A1 (en) 1977-10-24 1977-10-24 Method of impact testing of materials for bending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772539736A SU735959A1 (en) 1977-10-24 1977-10-24 Method of impact testing of materials for bending

Publications (1)

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SU735959A1 true SU735959A1 (en) 1980-05-25

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SU772539736A SU735959A1 (en) 1977-10-24 1977-10-24 Method of impact testing of materials for bending

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SU (1) SU735959A1 (en)

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