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A comparison between the nmm and the xfem in discontinuity modeling

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : A comparison between the nmm and the xfem in discontinuity modeling
นักวิจัย : An, Xinmei , Fu, Guoyang , Ma, Guowei
คำค้น : DRNTU::Engineering::Computer science and engineering::Computer applications::Computers in other systems
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : An, X., Fu, G., & Ma, G. (2012). A comparison between the nmm and the xfem in discontinuity modeling. International journal of computational methods, 9(2), 1240030-. , http://hdl.handle.net/10220/16998 , http://dx.doi.org/10.1142/S0219876212400300
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : International journal of computational methods
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Discontinuities such as voids, cracks, material interfaces, and joints widely exist in nature. Conventional finite element method (FEM) requires the finite element mesh to coincide with the discontinuities, which often complicates the meshing task. When evolution of discontinuities are necessary, remeshing is inevitable, which makes the simulation tedious and time-consuming. In order to overcome such inconveniences, the extended finite element method (XFEM) and the generalized finite element method (GFEM) were developed by incorporating special functions into the standard finite element approximation space based on partition of unity. The finite element mesh is allowed to be totally independent of the discontinuities and remeshing is totally avoided for discontinuity evolution. The numerical manifold method (NMM) can also be viewed as an extension or generalization to the conventional FEM. Different from the XFEM/GFEM, the approximation in the NMM is based on covers. The NMM models discontinuities by its dual cover system. In this paper, a detailed comparison between the NMM and the XFEM in discontinuity modeling is presented. Their advantages and disadvantages are pointed out. How the dual cover system in the NMM favors the complex crack modeling is emphasized. Potential extensions to the XFEM and the NMM are suggested.

บรรณานุกรม :
An, Xinmei , Fu, Guoyang , Ma, Guowei . (2555). A comparison between the nmm and the xfem in discontinuity modeling.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
An, Xinmei , Fu, Guoyang , Ma, Guowei . 2555. "A comparison between the nmm and the xfem in discontinuity modeling".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
An, Xinmei , Fu, Guoyang , Ma, Guowei . "A comparison between the nmm and the xfem in discontinuity modeling."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
An, Xinmei , Fu, Guoyang , Ma, Guowei . A comparison between the nmm and the xfem in discontinuity modeling. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.