Strain concentrations in woven fabric composites with holes
A strain mapping technique, namely digital photogrammetry, was used to investigate the tensile strain field of woven fabric composites in the presence of stress concentrations caused by geometrical defects consisting of circular or elliptical holes. Plain woven fabrics were used. The strain mapping...
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| Veröffentlicht in: | Composite structures 2003-02, Vol.59 (3), p.361-368 |
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| container_title | Composite structures |
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| creator | Pandita, Surya D Nishiyabu, Kazuaki Verpoest, Ignaas |
| description | A strain mapping technique, namely digital photogrammetry, was used to investigate the tensile strain field of woven fabric composites in the presence of stress concentrations caused by geometrical defects consisting of circular or elliptical holes. Plain woven fabrics were used. The strain mapping technique clearly revealed the strain concentrations near the singularity. The strain concentrations are influenced by the tensile loading direction and the hole dimension relative to the size of the unit cell of the plain woven fabrics. A preliminary comparison of stresses approximately calculated from the strain field and theoretical stresses calculated from existing models such as Lekhnitskii’s model is also presented. |
| doi_str_mv | 10.1016/S0263-8223(02)00242-8 |
| format | Article |
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| ispartof | Composite structures, 2003-02, Vol.59 (3), p.361-368 |
| issn | 0263-8223 1879-1085 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Applied sciences Composites Exact sciences and technology Forms of application and semi-finished materials Fundamental areas of phenomenology (including applications) Open-hole specimens Physics Polymer industry, paints, wood Solid mechanics Static elasticity Static elasticity (thermoelasticity...) Strain mapping Structural and continuum mechanics Technology of polymers Woven fabric composites |
| title | Strain concentrations in woven fabric composites with holes |
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