Deformasyonlarının Modellenmesi Bölüm II LOKP Bünye Denklemleri

Bu makalede iç bünye değişkenleri termodinamik kuramına dayanan gözlemsel bünye modellerinden, Lineer Olmayan Kinematik Pekleşme (LOKP) plastisite modelleri incelenecektir. İlk olarak defirmasyon hızından bağımsız gözlemsel bünye modellerin temel kabulleri ve ortak matematiksel bağıntılar üzerinde duruldu. Daha sonra, literatürde önerilen akma yüzeyi kavramına dayalı üç değişik kinematik pekleşme modeli incelendi. Son olarak gerilme kontrollü orantısal eksensel yükleme altında 1026 karbon çeliğinin çevrimsel deformasyonları her üç LOKP modeli kullanılarak hesaplandı ve deneysel sonuçlarla karsılaştırıldı. Üç farklı LOKP modeliyle hesaplanan eksensel gerinimlerin, niteliksel ve niceliksel olarak ölçülen gerinimlerle uyumluluğu olduğu görüldü. 

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