FRAC-L09-XFEM.pdf

节选段落一：
Mesh-independent Fracture Modeling (XFEM)
Lecture 9
L9.2
Modeling Fracture and Failure with Abaqus
Overview
• Introduction
• Basic XFEM Concepts
• Damage Modeling
• Creating an XFEM Fracture Model
• Example 1 – Crack Initiation and Propagation
• Example 2 – Propagation of an Existing Crack
• Example


节选段落二：
• These topics will be discussed in this lecture
Basic XFEM Concepts
L9.9
Modeling Fracture and Failure with Abaqus
Basic XFEM Concepts
• eXtended Finite Element Method (XFEM) Background
• XFEM extends the piecewise polynomial function space of conventional finite
element methods with extra functions


节选段落三：
0.01
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4
L9.35
Modeling Fracture and Failure with Abaqus
Example 1 – Crack Initiation and Propagation
Set analysis controls to improve convergence behavior (cont’d)
• Use numerical scheme applicable to discontinuous analysis
*STEP
*STATIC, inc=10000
0.01, 1.0, 1.0e-09, 0.01
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