An investigation of intersonic fracture using a phase field model

被引：11

作者：

Schlueter, Alexander ^{[1
,2
]}

Kuhn, Charlotte ^{[2
]}

Mueller, Ralf ^{[1
]}

Gross, Dietmar ^{[3
]}

机构：

[1] Univ Kaiserslautern, Inst Appl Mech, Post Box 3049, D-67653 Kaiserslautern, Germany

[2] Univ Kaiserslautern, Computat Mech, Post Box 3049, D-67653 Kaiserslautern, Germany

[3] Tech Univ, Inst Mech, Darmstadt, Germany

来源：

ARCHIVE OF APPLIED MECHANICS | 2016年 / 86卷 / 1-2期

关键词：

Intersonic fracture; Phase field; Dynamic fracture; Crack speed; BRITTLE-FRACTURE; DYNAMIC FRACTURE; CRACK;

D O I：

10.1007/s00419-015-1114-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Under certain circumstances, cracks can grow faster than the slowest characteristic wave speed of the material. This so-called intersonic or transonic fracture phenomenon is studied in the present work by means of a phase field fracture model. The model makes use of a regularized representation of the fracture surface. This kind of models intrinsically fulfill the boundary conditions at the evolving crack surface and implicitly govern the crack evolution by a set of partial differential equations. The set includes the momentum balance as well as a phase field equation and is solved by means of a finite element scheme in this work. The simulated crack speeds agree well with experiments and molecular dynamic simulations reported in the literature.

引用

页码：321 / 333

页数：13

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