Zobrazeno 1 - 10 of 139 pro vyhledávání: '"John D. Whitcomb"'
1
Detailed stress analysis of a twill orthogonally woven textile composite
Autor: M. Keith Ballard, John D Whitcomb
Publikováno v: Journal of Composite Materials. 54:3801-3820
A finite element analysis framework that leverages high-performance computing was used to analyze a twill orthogonally woven textile model. Boundary conditions for uniaxial tension along the warp direction were applied to a large analysis region, and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08e006da4af88ac60ffec175974758c0
https://doi.org/10.1177/0021998320920920
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2
Multiscale analysis of interlaminar stresses near a free-edge in a [±45/0/90]s laminate
Autor: John D Whitcomb, M. Keith Ballard
Publikováno v: Journal of Composite Materials. 54:1627-1638
A multiscale model for a [±45/0/90]s tape laminate under uniaxial extension was used to investigate the effect of modeling the heterogeneous microstructure near a free-edge. A random fiber arrangement was used for the 0° and 90° plies and homogeni
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::290bcfff5709ad13952dae47c3332cf3
https://doi.org/10.1177/0021998319883918
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3
Stress analysis of a plain orthogonally woven textile composite under tension along the warp direction
Autor: M. Keith Ballard, John D Whitcomb
Publikováno v: Journal of Composite Materials. 53:2809-2829
A non-idealized finite element model of a plain orthogonally woven textile composite was subjected to tension along the warp direction, and the predicted stress state was investigated. The effect of refining the geometry and mesh on the volume averag
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f648d2f007712e85700ea2d3df28fcc9
https://doi.org/10.1177/0021998319840427
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5
Investigation of a Twill Orthogonally Woven Textile Composite Under In-Plane Extension
Autor: M. Keith Ballard, John D Whitcomb
Publikováno v: American Society for Composites 2019.
A 2x2 twill orthogonal weave was investigated using detailed finite element analysis that was enabled via a high-performance computing framework. The figure below shows the tow architecture of the finite element model.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff230f1f70365fdcd5fa0aace5feadd4
https://doi.org/10.12783/asc34/31426
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6
Characteristic progressive damage modes in a plain weave textile composite under multiaxial loads
Autor: John D Whitcomb, W Ross McLendon
Publikováno v: Journal of Composite Materials. 51:1539-1556
A finite element-based model was developed to predict progressive damage evolution within a plain weave textile composite subjected to various combinations of in-plane tension and shear. Cracking in the tows, matrix, and interfaces was accounted for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dc204d406e4b64333dc288f85db9c241
https://doi.org/10.1177/0021998316662132
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7
Effective use of cohesive zone-based models for the prediction of progressive damage at the fiber/matrix scale
Autor: John D Whitcomb, Michael K. Ballard
Publikováno v: Journal of Composite Materials. 51:649-669
The onset and growth of damage in fiber/matrix composites under transverse loads were modelled using cohesive elements and representative volume elements of randomly arranged fibers. Switching between iterative schemes, using an appropriate tolerance
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7ffa8f373e022ead0682ed07094f239
https://doi.org/10.1177/0021998316651127
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8
Multiscale Analysis of Interlaminar Stresses Near a Free-Edge in a [±45/0/90]sLaminate
Autor: John D Whitcomb, M. Keith Ballard
Publikováno v: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference.
A multiscale model for a [±45/0/90]s tape laminate under uniaxial extension was used to investigate the effect of modeling the heterogeneous microstructure near a free-edge. A random fiber arrangem...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa8f334fc7cd25e880186812a64c915b
https://doi.org/10.2514/6.2018-1707
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9
Influence of thermally induced microstress and microstructural randomness on transverse strength of unidirectional composites
Autor: W Ross McLendon, John D Whitcomb
Publikováno v: Journal of Composite Materials. 50:1467-1481
An investigation is performed into the interaction between thermally and mechanically induced stresses and their relation to failure in a unidirectional composite under transverse tension and longitudinal shear. Multiple realizations of periodic unit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cb8281b4b43d185e345804ba513d4a2
https://doi.org/10.1177/0021998315593795
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10
Prediction of Tow Architecture and Stress Distributions for a 3D Woven Composite
Autor: M. Keith Ballard, John D Whitcomb
Publikováno v: American Society for Composites 2017.
Finite element analysis was used to investigate a 3D orthogonally woven composite. The tow architecture was generated using VTMS, a tool created by AFRL for generating textile composite models. Because of the complexity of the geometry, the study inc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10694bf1d037aefb053ed77fa8652e71
https://doi.org/10.12783/asc2017/15402
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