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Frictional crack initiation and propagation analysis using the numerical manifold method

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Frictional crack initiation and propagation analysis using the numerical manifold method
นักวิจัย : Wu, Zhijun , Wong, Louis Ngai Yuen
คำค้น : DRNTU::Engineering::Civil engineering::Geotechnical.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Wu, Z., & Wong, L. N. Y. (2012). Frictional crack initiation and propagation analysis using the numerical manifold method. Computers and Geotechnics, 39, 38-53. , 0266-352X , http://hdl.handle.net/10220/10832 , http://dx.doi.org/10.1016/j.compgeo.2011.08.011
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Computers and geotechnics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

By employing both a physical mesh and a mathematical mesh to formulate a physical problem, the numerical manifold method (NMM) can lead to a very simple meshing task, which allows directly capturing the discontinuities across the crack surfaces without further incorporating unknowns to the related nodes through enrichment functions. These features enable the NMM to handle complex crack problems. In this study, based on the contact technique of the NMM and the incorporation of the Mohr–Coulomb crack initiation criterion, the effects of the friction and cohesion on the crack growth from a closed flaw (crack) under compression were investigated. A limited number of comparisons between the numerical results and the physical experiments show that with the Mohr–Coulomb crack initiation criterion, the NMM can not only accurately predict the pure tensile or pure shear crack growth, but the NMM can also satisfactorily predict the development of mixed shear–tensile crack types. Using a parametric analysis, the effects of the confining stress, the flaw inclination angle, the flaw friction angle and the material strengths on the crack development (crack initiation stress, crack initiation angle, crack type developed) have been investigated.

บรรณานุกรม :
Wu, Zhijun , Wong, Louis Ngai Yuen . (2554). Frictional crack initiation and propagation analysis using the numerical manifold method.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wu, Zhijun , Wong, Louis Ngai Yuen . 2554. "Frictional crack initiation and propagation analysis using the numerical manifold method".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wu, Zhijun , Wong, Louis Ngai Yuen . "Frictional crack initiation and propagation analysis using the numerical manifold method."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Wu, Zhijun , Wong, Louis Ngai Yuen . Frictional crack initiation and propagation analysis using the numerical manifold method. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.