Pikan Meyvesi Çekirdeklerinin Doğrusal Olmayan Sonlu Elemanlar Yöntemi Temelli Simülasyonu

Bu araştırmada yağı çıkartılabilir kabuklu tarım ürünlerine ait çekirdek meyvenin deformasyonu üzerine odaklanılmış ve bu ürünlerin doğrusal olmayan (non-lineer) deformasyonu için sonlu elemanlar yöntemi (FEM) temelli bir simülasyon prosedürü tanıtılmıştır. Araştırmada deneysel ve teorik yöntemler kullanılarak pikan meyvesi çekirdeği için örnek bir uygulama yürütülmüştür. FEM temelli simülasyon çalışmasında tanımlanmak üzere ürüne ait bazı fiziksel ve mekanik özellikler deneysel rijit yüzeyler arası sıkıştırma/bası testi ile belirlenmiştir. Daha sonra elastik-plastik malzeme modeli kabulü ile pikan cevizi çekirdeği deformasyonu doğrusal olmayan yaklaşımla simüle edilmiştir. Simülasyon ve fiziksel testler sonucu elde edilen görsel sonuçlar birbirleri ile oldukça uyumlu bulunmuştur. Bu araştırma, yağı çıkartılabilir kabuklu tarım ürünlerine ait çekirdek meyvenin doğrusal olmayan sayısal yöntemler ile deformasyonun belirlenmesi konusunda yapılacak ileriki çalışmalara katkıda bulunacaktır.

Non-linear FEM Based Compression Simulation of Pecan Fruit Kernels

This paper introduces a finite elements method (FEM) based non-linear deformation simulation procedure for applicable nut kind of agricultural products for oil extraction. A case study was carried out on a sample pecan fruit kernel. Experimental and theoretical methods were utilised in this study. Some engineering properties to define in the FEM based engineering simulation were determined through physical compression tests. Subsequently, deformation of a kernel specimen was simulated considering non-linear simulation approach with assumption of elastic-plastic material model. Visual print-outs from the simulation results revealed a good accordance with experiments. This work contributes to further research into the usage of non-linear numerical method based deformation simulation studies for applicable nut kind of agricultural products.

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