Damage prediction in composite plates subjected to low velocity impact

Tiberkak, Rachid; Bachene, Mourad; Rechak, Saïd; Necib, Brahim

doi:10.1016/j.compstruct.2007.03.007

Cited by 82 publications

(32 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Udarno oštećenje je glavna opasnost za bezbednost i pouzdanost u laminatnim kompozitnim strukturama. Određeni udar u strukturu često izaziva oštećenje, koje ozbiljno redukuje čvrstoću, krutost i stabilnost strukture [6].…”

Section: A) Lom Vlakna B) Transverzalna Matrična Prskotina C) Delaminunclassified

Impact damages modeling in laminated composite structures

Kreculj¹,

Rašuo²

2014

Tehnika

View full text Add to dashboard Cite

UVODLaminatni kompoziti se mnogo koriste kao strukturni materijali, posebno u aerokosmičkim i automobilskim strukturama, kao i onim za potrebe vojne industrije. Oni poseduju izuzetne karakteristike, kao što su: visoka specifična čvrstoća i krutost, mala gustina, dobre zamorne performanse, otpornost na koroziju i visoke temperature, mogućnost izrade kompleksnih oblika [1].Kompoziti su veoma osetljivi na udare, koji izazivaju jedva vidljivo udarno oštećenje (barely visible impact damage, BVID) i doprinose gubitku kompresivne čvrstoće strukture, kao glavnog razloga katastrofalnih oštećenja i otkaza. BVID predstavlja skrivenu pretnju, a preostala čvrstoća na pritisak strukture može iznositi samo 30% od njene maksimalne vrednosti.Fizički fenomeni povezani sa udarnim oštećenjem i shodno tome progresivnom otkazu kompozitnih struktura veoma je složen, zato što je udar karakterisan kao visoko nelinearan i dinamički događaj. Iz tog razloga modeli predviđanja (2D i 3D) i simulacioni alati za projektovanje i analizu udara su obimno istraživani u prethodnim godinama.Otkaz kompozitnih laminata uključuje sekvencija- lnu akumulaciju različitih tipova intra-i inter-laminarnih oštećenja, koji postepeno vode ka gubitku kapaciteta nosivosti laminata. Glavni mehanizmi oštećenja, koji se pojavljuju u kompozitnim laminatima su oni u matrici i vlaknu. UDARNA OŠTEĆENJA U KOMPOZITNIM LAMINATIMAEnergija apsorbovana tokom procesa udara u kompozitne laminate vrlo je velika. Ta energija se najvećim delom rasipa na kombinaciju oštećenja matrice, loma vlakna i razdvajanje vlakno-matrica. Ove činjenice vode ka značajnijim redukcijama prenošenja opterećenja u takvim strukturama [2].U balističkim udarima (kratak kontakt između impaktor-a i mete) oštećenje je lokalizovano i jasno vidljivo spoljašnjom vizuelnom kontrolom. Udar niske brzine uključuje dugo vreme kontakta između impaktora i mete, koje proizvodi globalnu strukturnu deformaciju sa neotkrivenim internim oštećenjima u tačka-ma dalje od regiona kontakta [3].Oštećenja u kompozitima su sasvim različita od onih u metalima. Otkaz kompozita je progresivna akumulacija oštećenja, uključujući višestruke (multiple) modove oštećenja i kompleksne mehanizme oštećenja. Stoga je za analizu takvog otkaza potreban poseban prilaz.Udar u strukturu ima dinamičku prirodu i stoga je neophodno uzeti u obzir efekte proistekle iz inercije i

show abstract

Section: A) Lom Vlakna B) Transverzalna Matrična Prskotina C) Delaminunclassified

Impact damages modeling in laminated composite structures

Kreculj¹,

Rašuo²

2014

Tehnika

View full text Add to dashboard Cite

show abstract

“…The influence of different failure mechanisms on the compressive behavior of delaminated composite plates was assessed, by comparing numerical results obtained with models characterized by different degrees of complexity. Tiberkak et al (2008) studied damage prediction in composite plates subjected to low velocity impact. Fiber-reinforced composite plates subjected to low velocity impact were studied by use of finite element analysis where Mindlin's plate theory and 9-node Lagrangian element were considered.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Implementation of Failure and Damage Simulation in Composite Plates

Žmindák¹,

Dudinský²

2012

Composites and Their Properties

View full text Add to dashboard Cite

“…The modified Hertzian contact law incorporated within the Newton-Raphson method is used to calculate the contact force between the impactor and the laminated plate. Tiberkak et al (2008) also investigated fiber-reinforced composite plates subjected to low velocity impact, by the use of finite element analysis. Dynamic stress analysis is carried out by the use of a constitutive equation of composite laminates without damage.…”

Section: Introductionmentioning

confidence: 99%

Force Vibration of Laminated Plates with Various Shapes Subjected to Low-velocity Impact

Yousefi¹,

Hosseini-Hashemi²,

Kargarnovin³

2012

JMSR

View full text Add to dashboard Cite

In this paper, force vibration of composite laminate plates subjected to low-velocity impacts are investigated semi-analytically and analytically. Symmetrically angle-ply laminated rectangular, circular and elliptical plates are considered. The simply supported edges boundary condition is considered. Plates were studied based on small deflection thin plate theory. A Hertz Contact Theory models the contact forces between the rigid projectile and the laminated plate.A simple and improved model was developed to calculate force vibration of composite plates. A semi-analytical model was obtained for force vibration of composite laminated plates by the method of Rayleigh-Ritz and modal expansion. Calculations of the impact response in composite material structures are important in damage-tolerant design. The results were compared with the results from the available literature and found to be in good agreement.

show abstract

Damage prediction in composite plates subjected to low velocity impact

Cited by 82 publications

References 16 publications

Impact damages modeling in laminated composite structures

Impact damages modeling in laminated composite structures

Finite Element Implementation of Failure and Damage Simulation in Composite Plates

Force Vibration of Laminated Plates with Various Shapes Subjected to Low-velocity Impact

Contact Info

Product

Resources

About