SU520532A1

SU520532A1 - Compression Tester

Info

Publication number: SU520532A1
Application number: SU1931480A
Authority: SU
Inventors: Владимир Акопович Акопьян; Валентин Петрович Зацаринный; Виктор Александрович Епифанов
Original assignee: Ростовский Ордена Трудового Красного Знамени Государственный Университет
Priority date: 1973-06-15
Filing date: 1973-06-15
Publication date: 1976-07-05

Description

во внутренней полости стаканов 3 установлены ограничительные кольца 7, а на корпусе 1 - индикаторы поперечных деформаци{1 8. Устройство работает следующим образомrestrictive rings 7 are installed in the inner cavity of the glasses 3, and on the housing 1 there are indicators of transverse deformation {1 8. The device works as follows

Образцы 5 устанавливаютс соосно между инденторами 4. Нагружение образцов осуществл етс от внешнего средства нагружени (на чертеже не показано). Сжимающее усилие через плунжеры 2 передаетс на стаканы 3, при э-том наход щийс между ними щарнир 6 исключает вли ние изгибающих моментов, которые возникают при нецентральном нагружении, обусловленном погрешност ми изготовлени образцов и их установки, Уменьщение касательных напр жений на контакте достигаетс тем, что индентор изготавливаетс из материала, модуль упругости которого близок к модулю упругости материала образца . В полости стаканов предусмотрена возможность установки ограничительных колец7, а на корпусе индикаторов поперечных деформаций.Samples 5 are mounted coaxially between the indenters 4. Samples are loaded from an external means of loading (not shown). The compressive force through the plungers 2 is transferred to the cups 3, with this, the joint 6 between them eliminates the influence of the bending moments that occur during off-center loading due to the errors in the manufacture of the samples and their installation. that the indenter is made of a material whose elastic modulus is close to the elastic modulus of the sample material. It is possible to install restrictive rings 7 in the cavity of glasses, and on the case of transverse strain indicators.

Claims

1. Installation for compression testing, containing a cylindrical chamber, coaxially mounted inside it plungers, placed inside them glasses with indenters, between which samples are placed, characterized in that, in order to improve the accuracy of testing, it is equipped with spherical hinges between the glasses and plungers, the center of rotation of which is located at the point of intersection of the axis of the plunger with the contact surface of the indenter.

2. The installation according to claim 1, that is, the fact that the indenter is made of a material whose elastic modulus is possibly close to the elastic modulus of the sample material.

Sources of information taken into account in the examination:

1.Avt. St. No. 84073, G 01 K 3/02 dated 11/02/1948.

2. Avt. St. No. 299754, G 01 K 3/12 of November 25, 1969 (prototype).