SU77649A1 - The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region - Google Patents

The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region

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Publication number
SU77649A1
SU77649A1 SU384147A SU384147A SU77649A1 SU 77649 A1 SU77649 A1 SU 77649A1 SU 384147 A SU384147 A SU 384147A SU 384147 A SU384147 A SU 384147A SU 77649 A1 SU77649 A1 SU 77649A1
Authority
SU
USSR - Soviet Union
Prior art keywords
materials
study
elastic
metals
deformed state
Prior art date
Application number
SU384147A
Other languages
Russian (ru)
Inventor
Т.К. Зилова
Я.Б. Фридман
Original Assignee
Т.К. Зилова
Я.Б. Фридман
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 Т.К. Зилова, Я.Б. Фридман filed Critical Т.К. Зилова
Priority to SU384147A priority Critical patent/SU77649A1/en
Application granted granted Critical
Publication of SU77649A1 publication Critical patent/SU77649A1/en

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Description

Изучение поведени  материалов в пластической области крайне затрудннтель){о из-за отсутстви  надежных экспериментальных способов их исследовани , так как известные способы изучени  поведени  материалов .(механические, электрические , оптические и т. п.) применимы только в области, в которой сохран ютс  упругие свойства материалов . Способы измерени  свойств материалов посредством фотосеток и выштампованных сеток, примен емые при изучении процессов штамповки и прокатки, весьма сложны и требуют дл-  нанесени  сетки специального оборудованки .The study of the behavior of materials in the plastic region is extremely difficult () due to the lack of reliable experimental methods for studying them, since known methods of studying the behavior of materials (mechanical, electrical, optical, etc.) are applicable only in the region in which they are stored. elastic properties of materials. Methods for measuring the properties of materials through photosets and stamped grids used in the study of the processes of forming and rolling are very complex and require special equipment to apply the mesh.

Предлагаемый способ нанесени  координатных сеток на поверхности материалов дл  изучени  их деформированного состо ни  в упруго:пластической области заключаетс  в том, что на поверхность иссле .дуемого материала, без нарушени  ее целостности и специальной подтотовки , нанос т координатную сетку путем притирки к поверхностн тангирной сетки, снабженной заданным рельефным рисунком, покрываемым перед притиркой типографской краской.The proposed method of applying coordinate grids on the surfaces of materials to study their deformed state in an elastic: plastic region consists in applying the coordinate grid to the surface of the material to be tested, without destroying its integrity and special undercutting. supplied with a given relief pattern, covered before printing with printing ink.

Предлагаемый способ осуществл етс  следующим образом.The proposed method is carried out as follows.

На материал, предназначенный дл  деформировани , притираетс  тангирна  сетка так, что на поверхности материала образуетс  сетка с квадратными или ромбическими  чейками под любым углом к Направлению действуюш,ег-о усили . Тангирна  сетка представл ет собой прозрачную целлюлоидную пленку с заданным рельефным рисунком на поверхности. Этот рельеф покрываетс  черной типографской краской и притираетс  на поверхность исследуемого материала резиновым валиком.The material intended to be deformed is tipped onto a tangier grid so that a grid with square or rhombic cells at any angle to the Direction of acting force is formed on the surface of the material. The tangier mesh is a transparent celluloid film with a specified relief pattern on the surface. This relief is covered with black ink and is rubbed onto the surface of the material under investigation with a rubber roller.

Нанесенный в зависимости от консистенции краски сохран ет способность следовать за деформацией издели  в течение двухтрех иедель. Поате этого состав f говеет и приобретает хрупкость.The paint, applied depending on the consistency, retains the ability to follow the deformation of the product within two to three weeks. After this, the composition of f fits and becomes brittle.

Каждому номеру сетки соответствует определенное число линий на сантиметр.Each grid number corresponds to a certain number of lines per centimeter.

После процесса деформации картина распространени  деформации по поверхности материала точно передаетс  сеткой, нанесенной на исследуемый материал.After the deformation process, the pattern of propagation of the deformation over the surface of the material is accurately transmitted by a grid applied to the material under study.

Измер   размеры  чеек сетки после .деформации в продольном и поперечном направлении, -можио вычислить значени  истинных механических характеристик материалов в кажд/Зй данной  чейке сетки.Measuring the dimensions of the grid cells after deformation in the longitudinal and transverse directions, it is possible to calculate the values of the true mechanical characteristics of the materials in each / each given grid cell.

На основании полученной картины распределени  деформации могут быть . построены пол  истинных касательных напр жений, сдвидеформированныйBased on the resulting pattern of distribution, the strain may be. built the floor of true tangential stresses

гов, вычислен объем и т. н.gov, calculated volume, and so on.

Предмет изобретени  Способ нанесени  координатных сеток на поверхности металлов и других материалов дл  изучени  деформированного состо ни  их в упруго-пластической области, о тл 1{ ч а ю щ и и с   тем, что на поверхность исследуемого материала без нарушени  ее целостности и без специальной ее подготовки нанос т координатную сетку путем притирки к поверхности тангирной сетки,, снабженной заданным рельефным рисунком, покрываемым перед притиркой черной типографской: краской.The subject of the invention. The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region, about 1/1 with the fact that on the surface of the material under study without disturbing its integrity and without special Preparations are applied to the coordinate grid by grinding to the surface of the tangent grid, provided with a given relief pattern, covered with black printing: before painting.

SU384147A 1948-06-19 1948-06-19 The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region SU77649A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU384147A SU77649A1 (en) 1948-06-19 1948-06-19 The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU384147A SU77649A1 (en) 1948-06-19 1948-06-19 The method of applying coordinate grids on the surfaces of metals and other materials to study their deformed state in the elastic-plastic region

Publications (1)

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SU77649A1 true SU77649A1 (en) 1948-11-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2628668C1 (en) * 2016-10-24 2017-08-21 Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" (ФГАОУ ВО "ЮУрГУ (НИУ)") Method for manufacturing coordinate grids of high accuracy from linear rasters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2628668C1 (en) * 2016-10-24 2017-08-21 Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" (ФГАОУ ВО "ЮУрГУ (НИУ)") Method for manufacturing coordinate grids of high accuracy from linear rasters

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