FIELD: measurement equipment.
SUBSTANCE: invention relates to manufacturing of composite-fibrous materials (KFM) and may find wide application in rocket and space engineering, aircraft building, chemical machine building, and also in other industries. Concept of the invention is as follows: from a non-hardened KFM (prepreg) a strip is cut from a multiaxial fabric and laid between two rigid surfaces loaded with pressure P. Then one thread is cut, a stretching force is applied to its end, and relation is identified between thread length and force of its pulling out of prepreg, based on the specified dependence. Using test results, coefficients of inner friction are identified by comparison of test results with the found relation.
EFFECT: increased efficiency of measurement.
2 tbl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING NON-ELASTIC COMPONENT DURING COMPRESSION OF UNCURED COMPOSITE-FIBRE MATERIAL | 2011 |
|
RU2452951C1 |
| PROCEDURE ESTABLISHING DEFORMED-STRESSED CONDITION OF NONSOLIDIFIED COMPOSITE-FIBROUS MATERIALS | 2002 |
|
RU2228524C2 |
| FIBER-REINFORCED 3D WEAVING AND METHOD FOR ITS PRODUCTION | 2018 |
|
RU2767839C2 |
| METHOD OF THREADING IN UNCURED COMPOSITION-FIBER MATERIAL | 2018 |
|
RU2680513C1 |
| METHOD OF CREATING A COMPOSITE ANGULAR CONNECTING ELEMENT BASED ON SOLID-WOVEN 3D PREFORM WITH CHANGE IN REINFORCEMENT STRUCTURE | 2023 |
|
RU2818055C1 |
| CLOTH ARMORING PANEL, CLOTH ARMORING MODULE AND ARMORED CLOTH | 1999 |
|
RU2155313C1 |
| COMPOSITE BALLISTIC STRUCTURE | 2018 |
|
RU2677059C1 |
| CARBON COMPOSITE THREADED CONNECTING ELEMENT BASED ON 3D SOLID-WOVEN PREFORM | 2023 |
|
RU2801427C1 |
| LENGTHY LOAD-BEARING STRUCTURAL ELEMENT OF CONSTRUCTION BEAM TYPE FROM POLYMER COMPOSITE MATERIAL | 2013 |
|
RU2542294C2 |
| BASE MATERIAL FROM STITCHED CARBON FIBRE AND WET PREPREG USING THEREOF | 2013 |
|
RU2601761C2 |
