SU563593A1 - Process for non-destructive testing strengh of polymer composite - Google Patents
Process for non-destructive testing strengh of polymer compositeInfo
- Publication number
- SU563593A1 SU563593A1 SU7502135365A SU2135365A SU563593A1 SU 563593 A1 SU563593 A1 SU 563593A1 SU 7502135365 A SU7502135365 A SU 7502135365A SU 2135365 A SU2135365 A SU 2135365A SU 563593 A1 SU563593 A1 SU 563593A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- strength
- destructive testing
- products
- strengh
- polymer composite
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
Образцы по одному помещают в калориметр УКМ-1, закрепл ют в наГружающем механизме , а на их поверхность устанавливают термодатчики . После подключени калориметра производ т пробное нагружение образцов известной силой до напр жений, несколько больших предела упругости и равных 0,2 предела прочности. Дл каждого образца в процессе нагружени определ ют силу, деформацию и тепловую мощность, как функции времени. По полученным данным рассчитывают работу деформации и выделивщуюс тепловую энергию, а затем их сумму--внутреннюю энергию.Samples, one by one, are placed in the UKM-1 calorimeter, fixed in the loading mechanism, and thermal sensors are installed on their surface. After connecting the calorimeter, test loading of the samples is carried out with a known force up to stresses, several large elastic limits and equal to 0.2 tensile strength. For each specimen in the process of loading, the force, deformation, and thermal power are determined as a function of time. According to the data obtained, the work of deformation and the released thermal energy are calculated, and then their sum is the internal energy.
Часть образцов с известной внутренней энергией нагружают повторно до разрушени . При этом регистрируют предел прочности каждого образца. Дл них по известным правилам математической статистики определ етс управление регрессии и коэффициент коррел ции между зарегистрированными пределами прочности и известными значени ми внутренней энергии.A part of the samples with known internal energy is re-loaded until destruction. When this register the tensile strength of each sample. For them, according to the well-known rules of mathematical statistics, the regression control and the correlation coefficient between the recorded strength limits and known values of the internal energy is determined.
Зависимость предела прочности от внутренней энергии, соответствующа полученному уравнению регрессии, приведена на графике . Коэффициент коррел ции дл полученной зависимости равен 90%.The dependence of the ultimate strength of the internal energy, corresponding to the obtained regression equation, is shown in the graph. The correlation coefficient for the resulting relationship is 90%.
Полученна зависимость используетс дл неразрущающего контрол предела прочности остальных образцов. Поскольку коэффициент The resulting relationship is used for non-destructive testing of the ultimate strength of the remaining samples. Since the coefficient
коррел ции между пределом прочности и внутренней энергией значителен, точность неразрущающего контрол оказалась достаточно высокой.the correlation between the ultimate strength and internal energy is significant, the accuracy of the non-destructive testing turned out to be quite high.
Предел прочности образцов контролируетс также путем сравнени их внутренней энергии , найденной при пробном нагружении, с внутренней энергией эталонного образца.The ultimate strength of the specimens is also controlled by comparing their internal energy, found under trial loading, with the internal energy of the reference sample.
Предложенный способ неразрущающего контрол прочности изделий обеспечивает высокую точность и малую повреждаемость материала контролируемого издели .The proposed method of non-destructive testing of the strength of products provides high accuracy and low damage to the material of the controlled product.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502135365A SU563593A1 (en) | 1975-05-16 | 1975-05-16 | Process for non-destructive testing strengh of polymer composite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7502135365A SU563593A1 (en) | 1975-05-16 | 1975-05-16 | Process for non-destructive testing strengh of polymer composite |
Publications (1)
Publication Number | Publication Date |
---|---|
SU563593A1 true SU563593A1 (en) | 1977-06-30 |
Family
ID=20619791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7502135365A SU563593A1 (en) | 1975-05-16 | 1975-05-16 | Process for non-destructive testing strengh of polymer composite |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU563593A1 (en) |
-
1975
- 1975-05-16 SU SU7502135365A patent/SU563593A1/en active
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