Progressive failure analysis of composite laminates loaded in compression
Анализа прогресивног лома композитних ламината изложених сили притиска
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U ovom radu sprovedena je analiza progresivnog loma pločastih kompozitnih laminata,
opterećenih na pritisak. Hashin-ov kriterijum je korišćen prilikom određivanja inicijacije loma
laminata, dok je razvoj oštećenja analiziran primenom modela razmazane pukotine. U cilju
poboljšanja efikasnosti proračuna, izabrani model oštećenja je implementiran u numerički
model zasnovan na Redijevoj slojevitoj teoriji ploča. Prilikom validacije razvijenog
algoritamskog modela, dobijeni rezultati su upoređeni sa numeričkim rezultatima iz literature i
dobijena su odlična poklapanja.
This paper deals with the progressive failure analysis (PFA) of plate-like composite laminates
loaded in compression. The Hashin failure criterion was used to detect failure initiation, while
damage evaluation behaviour was calculated using the smeared crack band (SCB) damage
model. SCB damage model have been incorporated into the Full-Layerwise Theory (FLWT)
framework to increase the computational efficiency of the PFA. To verify the effectiveness of
the FLWT-SCB prediction model, the obtained results were compared against the benchmark
data from the literature and excellent agreement has been obtained.
Keywords:
progressive failure / smeared crack / layerwise theory / laminate / progresivni lom / razmazana pukotina / slojevita teorija / laminatSource:
16th Congress hosted by Association of Structural Engineers of Serbia, 2022, 148-157, 2022Publisher:
- Univerzitet u Beogradu Građevinski fakultet Beograd
- Društvo građevinskih konstruktera Srbije