Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Lyle Deobald"'
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 7, Iss 1, Pp 1-25 (2020)
Abstract Analysis benchmarking is used to evaluate new algorithms for automated VCCT-based delamination growth analysis. First, existing benchmark cases based on the Single Leg Bending (SLB) specimen for crack propagation prediction under quasi-stati
Externí odkaz:
https://doaj.org/article/6e9d5bf22f5d4d9d9bd684b0c299898c
Publikováno v:
American Society for Composites 2018.
Benchmark examples based on Single Leg Bending (SLB) specimens with equal and unequal bending arm thicknesses were used to assess the performance of delamination prediction capabilities in finite element codes. First, the development of the quasi-sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::505a7c01f87e81ba489054a12727e800
https://doi.org/10.12783/asc33/26004
https://doi.org/10.12783/asc33/26004
Publikováno v:
2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
As part of the NASA Advanced Composites Project (ACP), a sub-element has been designed to provide validation data for progressive damage analysis models. The clamped tapered beam is a cross-ply laminated composite specimen designed to validate the si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb932939c5761d605cd4a7527f2bf29c
https://doi.org/10.2514/6.2018-0971.c1
https://doi.org/10.2514/6.2018-0971.c1
Publikováno v:
2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
The present work summarizes an approach to model mixed-mode 3D fatigue crack growth using the Virtual Crack Closure Technique (VCCT) without requiring re-meshing. It is demonstrated that the proposed approach can be used to simulate crack shapes that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad06a651e499c3979971632f3d02c66c
https://doi.org/10.2514/6.2018-1468
https://doi.org/10.2514/6.2018-1468
Publikováno v:
American Society for Composites 2017.
Blind predictions were conducted to validate a discrete crack methodology based on the Floating Node Method to simulate matrix-crack/delamination interaction. The main novel aspects of the approach are: (1) the implementation of the floating node met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::736748c2c1d57a5c40448437af2555dd
https://doi.org/10.12783/asc2017/15253
https://doi.org/10.12783/asc2017/15253
Publikováno v:
Engineering Fracture Mechanics. 222:106614
A modeling approach is proposed to simulate delamination propagation in fatigue that combines the Virtual Crack Closure Technique (VCCT) with a progressive nodal release strategy. The progressive nodal release alleviates the artificial stress concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d40fff1da1e83f2a9aae8a8be715e29
https://doi.org/10.1016/j.engfracmech.2019.106614
https://doi.org/10.1016/j.engfracmech.2019.106614
Publikováno v:
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79a1364c8940309834394cba5b9c89ae
https://doi.org/10.2514/6.2007-2376
https://doi.org/10.2514/6.2007-2376
Publikováno v:
48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
Interlaminar fatigue analysis has historically been a tedious analysis to perform. Fatigue growth may be predicted with a Paris law that relates Energy Release Rate (ERR) to crack growth rates. Another approach determines the onset of fatigue growth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77fcb47b6c434dcbe5c3c43553f1de1a
https://doi.org/10.2514/6.2007-2091
https://doi.org/10.2514/6.2007-2091
Autor:
Lyle Deobald, Stephen B. Clay, Gary Renieri, Eric Nottorf, Bernhard Dopker, Stephen P. Engelstad, Owen Berry, Gerald E. Mabson
Publikováno v:
46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616cc266e64192f928f627e38d54f78f
https://doi.org/10.2514/6.2005-2166
https://doi.org/10.2514/6.2005-2166
Autor:
Lyle Deobald, Gerald E. Mabson
Publikováno v:
Mechanics of Sandwich Structures.
Design curves for 3D reinforced composite laminated double cantilever beams (DCB) are developed and presented. Z-pin and stitch reinforcements are considered. These curves may be used by designers and analysts in specifying Z-pin and stitch fields fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a991a54814bed9f41487a8d92a1d086
https://doi.org/10.1115/imece2000-2027
https://doi.org/10.1115/imece2000-2027