Study of the dependence of the stress intensity factor at the tip of normal-rupture cracks in the form of regular polygons

Khai, M. V.; Stasyuk, B. M.

doi:10.1007/bf02700670

Cited by 1 publication

(1 citation statement)

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“…The stress intensity factor [28,29] is an important physical quantity used in linear elastic fracture mechanics to reflect the strength of the stress field near the crack tip, which represents the strength of the stress field and is influenced by the geometry of the crack and the crack body and the external loading conditions. The stress intensity factor controls the magnitude of the stress, displacement, and strain fields at the crack tip, but the expressions differ slightly for the specific circumstances of each crack.…”

Section: Determination Of Stress Intensity Factormentioning

confidence: 99%

Multi-Scale Model Crack Extension Study Based on XFEM

Liu¹,

Chen²

2023

Preprint

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The link of fracture analysis of large ships is an essential part of the structural safety of ships. However, the finite element analysis of large structure according to the traditional method not only has high requirements on the computer, but also the influence of the mesh encryption at special locations makes further requirements on the accuracy of the ship. In this paper, based on the extended finite element method (XFEM) and the multi-point constraint method (MPC), the dynamic crack expansion process of the rectangular plate containing cracks under the multi-scale model is comparatively studied by using ABAQUS simulation software Finally, the applicability of the method is verified by applying the multi-scale model of ship nodes. The results show that the computational effort of the multi-scale model is significantly reduced with the same accuracy and allowable error, which proves the accuracy and efficiency of the method.

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Section: Determination Of Stress Intensity Factormentioning

confidence: 99%