A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The effect of a through thickness crack in a composite plate is discussed. The Mar‐Lin approach to determine strength in the presence of a crack is presented. A finite width correction is presented so the Mar‐Lin approach can be used for panels of finite size. Comparisons of the Mar‐Lin approach and other methods including linear elastic fracture mechanics to test results show the Mar‐Lin approach to be the most accurate but still needing improvements for a variety of laminates. Matrix cracks are also discussed in particular within the context of cross‐ply laminates under tension. An approach to determine crack density and three‐dimensional stresses near matrix cracks is presented. It is based on minimization of the laminate complementary energy and is shown to be in excellent agreement with published finite element results for low crack densities. However, it needs improvement for high crack densities.
The effect of a through thickness crack in a composite plate is discussed. The Mar‐Lin approach to determine strength in the presence of a crack is presented. A finite width correction is presented so the Mar‐Lin approach can be used for panels of finite size. Comparisons of the Mar‐Lin approach and other methods including linear elastic fracture mechanics to test results show the Mar‐Lin approach to be the most accurate but still needing improvements for a variety of laminates. Matrix cracks are also discussed in particular within the context of cross‐ply laminates under tension. An approach to determine crack density and three‐dimensional stresses near matrix cracks is presented. It is based on minimization of the laminate complementary energy and is shown to be in excellent agreement with published finite element results for low crack densities. However, it needs improvement for high crack densities.
Cracks
Kassapoglou, Christos (author)
2015-03-16
16 pages
Article/Chapter (Book)
Electronic Resource
English
Erlin & Hime on Concrete - Cracks Cracks Cracks
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