A Software Framework for Two-Dimensional Mixed Mode I/II Elastic-Plastic Fracture

2009 ◽  
pp. 111-111-16 ◽  
Author(s):  
MA James ◽  
D Swenson
Keyword(s):  
Mixed Mode ◽  
Mode I ◽  
Software Framework ◽  
Two Dimensional ◽  
Elastic Plastic

Elastic–plastic damage prediction in notched epoxy resin specimens under mixed mode I/II loading using two virtual linear elastic failure criteria

2020 ◽  
Vol 29 (7) ◽  
pp. 1100-1116
Author(s):  
AS Rahimi ◽  
MR Ayatollahi ◽  
AR Torabi
Keyword(s):  
Mixed Mode ◽  
Mode I ◽  
Equivalent Material ◽  
Mean Stress ◽  
Stress Criterion ◽  
Elastic Plastic ◽  
Notched Specimens ◽  
Plastic Damage ◽  
Equivalent Material Concept ◽  
Material Concept

Elastic–plastic damage of a ductile epoxy resin is investigated for the first time in the configuration of semicircular bend specimen weakened by U-shaped notches under mixed mode I/II loading conditions. U-notched specimens are prepared from the characterized epoxy material with different notch rotation angles and notch tip radii. Load-carrying capacities of the U-notched specimens are experimentally obtained by performing fracture tests under various combinations of mode I and mode II loading. The reformulated Equivalent Material Concept is employed for the polymeric material in conjunction with the maximum tangential stress and mean stress criteria to provide the theoretical predictions without any necessity for elastic–plastic analyses of their damage. Scanning electron microscopy micrographs are also taken from the fracture surfaces and utilized for realizing the micromechanical processes of damage in the tested specimens. A very good consistency is found between the experimental results and the predictions of the combined Equivalent Material Concept-maximum tangential stress criterion, as well as those of the Equivalent Material Concept-mean stress criterion.

A Three-dimensional Numerical Study of Mixed Mode (I and II) Crack Tip Fields in Elastic–plastic Solids

2005 ◽  
Vol 136 (1-4) ◽  
pp. 167-185 ◽  
Author(s):  
H. Y. Subramanya ◽  
S. Viswanath ◽  
R. Narasimhan
Keyword(s):  
Mixed Mode ◽  
Numerical Study ◽  
Three Dimensional ◽  
Crack Tip ◽  
Mode I ◽  
Elastic Plastic ◽  
Crack Tip Fields

Weibull stress solutions and applications under mixed mode I-II loading for 2-D cracks in elastic and elastic–plastic materials

2021 ◽  
Vol 113 ◽  
pp. 102972
Author(s):  
Mingjue Zhou ◽  
Yuebing Li ◽  
Yuebao Lei ◽  
Linyi Zhu ◽  
Wenhua Wang
Keyword(s):  
Mixed Mode ◽  
Mode I ◽  
Elastic Plastic ◽  
Plastic Materials ◽  
Elastic Plastic Materials ◽  
Weibull Stress

Elastic-plastic fracture toughness test under mixed mode I-II loading

1992 ◽  
Vol 41 (4) ◽  
pp. 529-540 ◽  
Author(s):  
Tohgo Keiichiro ◽  
Ishii Hitoshi
Keyword(s):  
Fracture Toughness ◽  
Mixed Mode ◽  
Mode I ◽  
Fracture Toughness Test ◽  
Elastic Plastic ◽  
Toughness Test

scholarly journals Crack tip fields in elastic-plastic and mixed mode I+II+III conditions, finite elements simulations and modeling

2015 ◽  
Vol 9 (33) ◽  
pp. 397-403
Author(s):  
F. Fremy ◽  
S. Pommier ◽  
E. Galenne ◽  
S. Courtin
Keyword(s):  
Finite Elements ◽  
Mixed Mode ◽  
Crack Tip ◽  
Mode I ◽  
Elastic Plastic ◽  
Crack Tip Fields ◽  
Simulations And Modeling

scholarly journals A Methodology to Determine the Effective Plastic Zone Size Around Blunt V-Notches under Mixed Mode I/II Loading and Plane-Stress Conditions

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1042
Author(s):  
Ali Reza Torabi ◽  
Behnam Shahbazian ◽  
Mirmilad Mirsayar ◽  
Sergio Cicero
Keyword(s):  
Plastic Zone ◽  
Plane Stress ◽  
Mixed Mode ◽  
Ductile Failure ◽  
Plastic Zone Size ◽  
Stress Conditions ◽  
Mode I ◽  
Zone Size ◽  
Elastic Plastic

The determination of the ductile failure behavior in engineering components weakened by cracks and notches is greatly dependent on the estimation of the plastic zone size (PZS) and, particularly, the effective plastic zone size (EPZS). Usually, time-consuming complex elastic–plastic analyses are required for the determination of the EPZS. Such demanding procedures can be avoided by employing analytical methods and by taking advantage of linear elastic analyses. In this sense, this work proposed a methodology for determining the PZS around the tip of blunt V-notches subjected to mixed mode I/II loading and plane-stress conditions. With this aim, firstly, existing approximate mathematical expressions for the elastic stress field near round-tip V-notches reported in the literature are presented. Next, Irwin’s approach (fundamentally proposed for sharp cracks) and a yield criterion (von Mises or Tresca) were applied and are presented. With the aim of verifying the proposed methodology, elastic–plastic finite element analyses were performed on virtual AISI 304 steel V-notched specimens. It was shown that the analytical formulations presented cannot estimate the complete shape of the plastic zone. However, the EPZS, which is crucial for predicting the type of ductile failure in notched members, can be successfully estimated.

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