SU949355A1 - Method of determination of stresses in steel structures - Google Patents
Method of determination of stresses in steel structures Download PDFInfo
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- SU949355A1 SU949355A1 SU792786125A SU2786125A SU949355A1 SU 949355 A1 SU949355 A1 SU 949355A1 SU 792786125 A SU792786125 A SU 792786125A SU 2786125 A SU2786125 A SU 2786125A SU 949355 A1 SU949355 A1 SU 949355A1
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- deformations
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- applied load
- magnetization
- steel
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
(5) СПОСОБ ОПРЕДЕЛЕНИЯ НАПРЯЖЕНИЙ В СТАЛЬНЫХ КОНСТРУКЦИЯХ(5) METHOD FOR DETERMINING STRESSES IN STEEL STRUCTURES
1one
Изобретение относитс к измерительной технике, а именно к способам определени одноосных напр жений в элементах стальных конструкций, и может быть использовано дл контрол напр жений , возникающих в сварных издег ЛИЯХ /|ри их изготовлении и вследствие иных нагрузок.The invention relates to a measurement technique, in particular, to methods for determining uniaxial stresses in elements of steel structures, and can be used to control stresses arising in welded components in their manufacture and as a result of other loads.
Известен способ определени напр жений в стальных конструкци х, при тором испытуемое изделие намагничивают и измер ют индуцируемую в приемных катушках ЭДС, пропорциональную изменени м коэрцитивной силы, по которым суд т о величине напр жени 1. isA known method for determining stresses in steel structures, with a torus, the test product is magnetized and an induced emf in the receiving coils measured proportional to the change in the coercive force, which is judged on the magnitude of the voltage 1. is
Недостатком этого способа вл етс низка точность результатов измерени , обусловленна значительным разбросом магнитных свойств материала изделий.The disadvantage of this method is the low accuracy of the measurement results, due to the significant variation in the magnetic properties of the material of the products.
Наиболее близким техническим реше-20 нием вл етс способ определени напр жени в стальных конструкци х путем намагничивани издели в направлении приложенной нагрузки и измерени магнитострикционных деформаций в этом же направлении, по величине которых суд т о напр жении С2.The closest technical solution is a method for determining the stress in steel structures by magnetizing the product in the direction of the applied load and measuring the magnetostrictive deformations in the same direction, the magnitude of which is judged by the voltage C2.
Недостаток этого способа также состоит в низкой точности результатов измерени вследствие того, что магнитострикционные деформации завис т не только от приложенной нагрузки, но и от материала издели , в частности, от колебаний состава марки стали. В тех случа х, когда дл определени нау пр жений в элементе конструкции используют градуировочную характеристику , полученную на другом элементе, точность результатов резко снижаетс .The disadvantage of this method also lies in the low accuracy of the measurement results due to the fact that magnetostrictive deformations depend not only on the applied load, but also on the material of the product, in particular, on variations in the composition of the steel grade. In those cases when the calibration characteristic obtained on the other element is used to determine the deformations in the structural element, the accuracy of the results sharply decreases.
Цель изобретени - уменьшение зависимости результатов измерени от колебаний состава марки стали.The purpose of the invention is to reduce the dependence of measurement results on fluctuations in the composition of the steel grade.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792786125A SU949355A1 (en) | 1979-06-29 | 1979-06-29 | Method of determination of stresses in steel structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792786125A SU949355A1 (en) | 1979-06-29 | 1979-06-29 | Method of determination of stresses in steel structures |
Publications (1)
Publication Number | Publication Date |
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SU949355A1 true SU949355A1 (en) | 1982-08-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792786125A SU949355A1 (en) | 1979-06-29 | 1979-06-29 | Method of determination of stresses in steel structures |
Country Status (1)
Country | Link |
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SU (1) | SU949355A1 (en) |
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1979
- 1979-06-29 SU SU792786125A patent/SU949355A1/en active
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