SU1548696A1 - Specimen for determining adhesive strength - Google Patents

Specimen for determining adhesive strength Download PDF

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Publication number
SU1548696A1
SU1548696A1 SU874382244A SU4382244A SU1548696A1 SU 1548696 A1 SU1548696 A1 SU 1548696A1 SU 874382244 A SU874382244 A SU 874382244A SU 4382244 A SU4382244 A SU 4382244A SU 1548696 A1 SU1548696 A1 SU 1548696A1
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SU
USSR - Soviet Union
Prior art keywords
sample
adhesive layer
exp
height
adhesive strength
Prior art date
Application number
SU874382244A
Other languages
Russian (ru)
Inventor
Сергей Владимирович Буйлов
Елена Анатольевна Власенко
Сергей Васильевич Дятченко
Сергей Иванович Корягин
Original Assignee
Калининградский государственный университет
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Application filed by Калининградский государственный университет filed Critical Калининградский государственный университет
Priority to SU874382244A priority Critical patent/SU1548696A1/en
Application granted granted Critical
Publication of SU1548696A1 publication Critical patent/SU1548696A1/en

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

Abstract

Изобретение относитс  к испытательной технике, предназначено дл  определени  адгезионной прочности и позвол ет повысить точность при испытании путем снижени  концентрации касательных напр жений в клеевом слое образца. Образец выполн ют в виде двух одинаковых брусьев и размещенного между их торцами клеевого сло . Ширину B(Z) средней части 4 каждого из брусьев выполн ют переменного сечени , выбранного из услови  B(Z)=T.EXP(-Z2/ZC), где T - толщина бруса на нейтральной осиThe invention relates to a test technique, is intended to determine the adhesion strength and allows to increase the accuracy of the test by reducing the concentration of tangential stresses in the adhesive layer of the sample. The sample is made in the form of two identical bars and an adhesive layer placed between their ends. The width B (Z) 4, the middle portion of each of the beams is performed alternating sectional selected from the conditions B (Z) = T. EXP (-Z 2 / ZC), where T is the thickness of the beam on the neutral axis

Z - координата точки по высоте брусаZ - coordinate of the point along the height of the beam

C - произвольна  посто нна , равна  целому числу, а статические моменты S в сечени х крайних частей 5, 6 выбраны из услови  S = C.T.EXP(-H2/ZC), где H - половина высоты средней части бруса. При приложении нагрузки к образцу в клеевом слое возникают касательные напр жени  посто нной величины. 3 ил.C - arbitrary constant which is an integer, and S static moments in x-sectional edge portions 5, 6 are selected from the condition S = C. T. EXP (-H 2 / ZC), where H is half the height of the middle part of the beam. When a load is applied to a sample, tangential stresses of constant magnitude appear in the adhesive layer. 3 il.

Description

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Claims (1)

Фор м'у ла изобретенияClaim Образец для определения адгезионной прочности, выполненный в виде двух состыкованных одинаковых элементов и размещенного между их торцами клеевого слоя, отличающийся тем, что, с целью повышения точности определения путем снижения концентрации касательных напряжений в клееном слое, каждый из элементов выполнен в виде бруса, поперечное сечение которого образовано тремя частями, средняя из которых имеет переменную ширину b(z), которая выбрана из условия b(z) = t * exp (-z2 /2c) , где t - толщина бруса на нейтральной . оси;A sample for determining adhesive strength, made in the form of two joined identical elements and an adhesive layer placed between their ends, characterized in that, in order to increase the accuracy of determination by reducing the concentration of shear stresses in the glued layer, each of the elements is made in the form of a bar, cross section which is formed by three parts, the middle of which has a variable width b (z), which is selected from the condition b (z) = t * exp (-z 2 / 2c), where t is the thickness of the beam on the neutral. axis 1548696' * z1548696 '* z с а двеwith a two - координата точки по высоте бруса;- coordinate of the point along the height of the beam; - постоянная, равная целому числу, крайние имеют форму прямоуголь ников, статические моменты S в частях которых выбраны из условия- a constant equal to an integer, the extreme ones are in the form of rectangles, the static moments S in parts of which are selected from the condition S » с. » t М exp (~hJ /2с) , где h - половина высоты средней части бруса.S "with. »T М exp (~ h J / 2с), where h is half the height of the middle part of the timber. —к. | А Фиг.1 τ(ζ}-to. | And Figure 1 τ (ζ} - -
Фиг.зFig.z
SU874382244A 1987-12-08 1987-12-08 Specimen for determining adhesive strength SU1548696A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874382244A SU1548696A1 (en) 1987-12-08 1987-12-08 Specimen for determining adhesive strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874382244A SU1548696A1 (en) 1987-12-08 1987-12-08 Specimen for determining adhesive strength

Publications (1)

Publication Number Publication Date
SU1548696A1 true SU1548696A1 (en) 1990-03-07

Family

ID=21357178

Family Applications (1)

Application Number Title Priority Date Filing Date
SU874382244A SU1548696A1 (en) 1987-12-08 1987-12-08 Specimen for determining adhesive strength

Country Status (1)

Country Link
SU (1) SU1548696A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 855443, кл. G 01 N 19/04, 1981. Авторское свидетельство СССР № 485363, кл. G 01 N 19/04, 1975. *

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