SU834448A1 - Material resistance to deformation determination method - Google Patents

Material resistance to deformation determination method Download PDF

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Publication number
SU834448A1
SU834448A1 SU792790162A SU2790162A SU834448A1 SU 834448 A1 SU834448 A1 SU 834448A1 SU 792790162 A SU792790162 A SU 792790162A SU 2790162 A SU2790162 A SU 2790162A SU 834448 A1 SU834448 A1 SU 834448A1
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USSR - Soviet Union
Prior art keywords
determination method
material resistance
deformation determination
issue
issues
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SU792790162A
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Russian (ru)
Inventor
Йонас Прано Барейшис
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Каунасский Политехнический Инсти-Тут Им.Ahtahaca Снечкуса
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Description

(54) СПОСОБ ОПРЕДЕЛЕНИЯ СОПРОТИВЛЯЕМОСТИ МАТЕРИАЛА ДЕФОРМИРОВАНИЮ(54) METHOD FOR DETERMINING THE RESISTANCE OF MATERIAL DEFORMATION

делении статического модул  упругости стандартным способом. При этом регистрируютс  амплитудные значени  напр жени  и деформации в течение 5-6 циклов. Плавность переменного нагружени  позвол ет более точно определить величину статического модул  упругости.dividing the static modulus of elasticity in a standard way. At the same time, amplitude values of stress and strain are recorded for 5-6 cycles. The smoothness of the variable loading makes it possible to more accurately determine the magnitude of the static elastic modulus.

После нагружени  образца в течение 5- 6 циклов при низкой частоте (примерно до 0,01 Гц) увеличивают частоту нагружени  по заданной программе усталостных испытаний , и в течение первых 100 циклов определ ют амплитудные значени  напр жений и деформации, по которым рассчитывают значени  динамического модул  упругости.After loading the sample for 5-6 cycles at a low frequency (up to about 0.01 Hz), the loading frequency is increased according to a predetermined fatigue test program, and during the first 100 cycles, the amplitude values of the stresses and strains are calculated, from which the dynamic modulus values elasticity.

По данным статического и динамического модулей упругости рассчитываетс  их отношение-характеристика сопротивл емости материалов деформированию.According to the data of the static and dynamic moduli of elasticity, their ratio-characteristic of the resistance of materials to deformation is calculated.

Определение указанных модулей упругости на одной испытательной машине без перестановки образца повышает точность их определени  и сокращает врем  проведени  эксперимента.The determination of these elastic moduli on a single testing machine without rearranging the sample improves the accuracy of their determination and shortens the time of the experiment.

Claims (2)

1.Барейшис и. П. Некоторые вопросы усталостной прочности термопластов. Сб. Научные труды вузов Литовской ССР. Механическа  технологи . Вып. 7, Вильнюс, 1978, с. 5-11. 1.Bareishis and. P. Some issues fatigue strength of thermoplastics. Sat Scientific works of universities of the Lithuanian SSR. Mechanical technology. Issue 7, Vilnius, 1978, p. 5-11. 2.Абрамов С. К. и др. Статические и динамические модули упругости некоторых пластмасс. Сб. Вопросы прочности конструкционных пластмасс. Вып. 79, Ростов-наДону , 1971, с. 63-67 (прототип).2. Abramov S. K., et al. Static and dynamic elastic moduli of some plastics. Sat Strength issues of engineering plastics. Issue 79, Rostov-on-Don, 1971, p. 63-67 (prototype).
SU792790162A 1979-07-05 1979-07-05 Material resistance to deformation determination method SU834448A1 (en)

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