Dynamic Finite Element and Dynamic Photoelastic Analyses of Crack Arrest in Homalite-100 Plates

2009 ◽  
pp. 95-95-14 ◽  
Author(s):  
AS Kobayashi ◽  
AF Emery ◽  
S Mall
Keyword(s):  
Finite Element ◽  
Crack Arrest ◽  
Dynamic Finite Element

Dynamic Finite Element Analyses of Two Compact Specimens

1978 ◽  
Vol 100 (4) ◽  
pp. 402-410 ◽  
Author(s):  
A. S. Kobayashi ◽  
Y. Urabe ◽  
S. Mall ◽  
A. F. Emery ◽  
W. J. Love
Keyword(s):  
Finite Element ◽  
Stress Intensity ◽  
Stress Intensity Factors ◽  
Crack Arrest ◽  
Compact Specimen ◽  
Intensity Factors ◽  
Dynamic Stress Intensity Factors ◽  
Additional Energy ◽  
Dynamic Finite Element ◽  
Loading System

A dynamic finite element code was used to compute the dynamic stress intensity factors and crack arrest stress intensity factors which are related to the crack run-arrest responses in longitudinal and transverse wedge-loaded compact specimens machined from A533B and 1018 steels, respectively. Measured crack velocities were used to prescribe crack motions in the longitudinal and transverse wedge-loaded compact specimens under fixed wedge displacements. The numerical analyses show that approximately 45 percent additional energy is input during the crack propagation phase in the former compact specimen while the rigid loading system in the latter results in essentially quasi-static crack extension.

Further Dynamic Finite Element Analysis of the Tapered DCB Specimen

1977 ◽  
Vol 99 (4) ◽  
pp. 324-328 ◽  
Author(s):  
Y. Urabe ◽  
A. S. Kobayashi ◽  
A. F. Emery ◽  
W. J. Love
Keyword(s):  
Stress Intensity Factor ◽  
Finite Element ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Crack Arrest ◽  
Loading Conditions ◽  
Variable Loading ◽  
Dynamic Finite Element ◽  
Dcb Specimen ◽  
Variable Loading Conditions

A dynamic finite element code was used to compute the dynamic stress intensity factors and crack arrest stress intensity factor which are related to the crack run-arrest response in a tapered double cantilever beam (DCB) specimen machined from A533B steel. Measured crack velocities of a fracturing tapered DCB specimen were used to prescribe a crack motion under both fixed grip and variable loading conditions at the two loading pins. Numerically and experimentally determined dynamic strains were compared at three locations on the fracturing tapered DCB specimen. This comparative study showed that the fixed grip condition modeled the actual dynamic state well and that the crack arrest stress intensity factor, KIa, computed on the bases of fixed grip and variable loading conditions differed by a factor of approximately 0.6.

Affordable structural optimization for large-size dynamic finite element models

1997 ◽  
Author(s):  
Francois Hemez ◽  
Emmanuel Pagnacco ◽  
Francois Hemez ◽  
Emmanuel Pagnacco
Keyword(s):  
Finite Element ◽  
Structural Optimization ◽  
Finite Element Models ◽  
Dynamic Finite Element ◽  
Large Size

Custom-Fitted EVA Mouthguards: what is the ideal thickness? a dynamic finite element impact study

2015 ◽  
Vol 32 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Crisnicaw Verissimo ◽  
Paulo Victor Moura Costa ◽  
Paulo Cesar Freitas Santos-Filho ◽  
Daranee Tantbirojn ◽  
Antheunis Versluis ◽  
...  
Keyword(s):  
Finite Element ◽  
Impact Study ◽  
Dynamic Finite Element ◽  
The Ideal

Viscoelastic characterization of soft tissue from dynamic finite element models

2008 ◽  
Vol 53 (22) ◽  
pp. 6569-6590 ◽  
Author(s):  
Hani Eskandari ◽  
Septimiu E Salcudean ◽  
Robert Rohling ◽  
Jacques Ohayon
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Finite Element Models ◽  
Dynamic Finite Element
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