Composite wing tests confirm strength characteristics
TsAGI has completed strength testing onáthe prototype ofáaáwing caisson. The research was carried out onábehalf ofáZAO AeroComposit asápart ofáwork onáthe future MS-21 medium- and long-haul plane.
The static tests completed aárange ofástrength testing and determined the load limit for this prototype ofáthe wing caisson. Ináone ofáthe most important tests, extreme stress was applied toáthe prototype model, and destruction occurred ináthe expected range.
Atáprevious stages, frequency and stiffness tests were also successfully carried out onáthe caisson prototype, during which defects and damage that might possibly arise during production and operation were artificially applied toáthe prototype.
The studies confirmed the compliance ofáthe design models and parameters ofáthe caisson, incorporated during the design phase. The data obtained will beáused for the further design ofáthe MS-21. The measurements received will expand the database for subsequent certification and operation ofácomposite constructions, taking into account controlled impact damages.
According toáTsAGI Aircraft Strength Complex Director Mikhail Zichenkov, the tests produced important information toáimprove testing procedures for large composite power structures. ôThe unique features ofáthe TsAGI aircraft strength testing complex made itápossible toácarry out this difficult and labor-intensive research toáthe highest modern standards,ö Zichenkov said.
TsAGI has currently begun work onápreparing for resource testing ofáthe next prototype ofáthe composite wing caisson. The entire theoretical and experimental research complex aims toáensure the safety ofácomposite wing aircraft ináterms ofástrength, aero-elasticity and service life.
TsAGI Press Service
© 2013 TsAGI