کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
770048 | 897445 | 2009 | 17 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Numerical simulation of plastic collapse of copper-cast iron canister for spent nuclear fuel Numerical simulation of plastic collapse of copper-cast iron canister for spent nuclear fuel](/preview/png/770048.png)
This paper describes a finite element simulation of a spent fuel canister for geological disposal loaded in iso-static pressure until plastic collapse. The canister consists of a copper overpack and a ductile cast iron insert with steel cassettes where the spent fuel is placed. The highly non-linear finite element analysis is based on the explicit formulation and includes large deformations, non-linear material behaviour and contact between the canister components. The analysis includes comparison between two- and three-dimensional models and assessment of the different geometrical features such as corner radius of the cassette, cassette offset, different bonding/debonding conditions between insert and steel cassette. The analysis shows that the bonding cassette/insert has a large impact on the collapse load. Two large-scale mock-ups test that had been performed earlier are also simulated by the developed finite element models. There is a very good agreement between measured and computed deformations vs. applied load and collapse load.
Journal: Engineering Failure Analysis - Volume 16, Issue 1, January 2009, Pages 225–241