Suchergebnisse

2.5D woven composites have been increasingly used in aerospace and military applications due to their excellent mechanical properties. In this research, 2.5D woven composites were produced, and their compression responses were investigated in different directions by compression experiments. XR-CT (X-ray computed tomography) technology was used to observe the microstructural damage profiles, and to analyze the failure mechanism of the material. The results show that when subjected to compression loads, the maximum load-bearing capacity of the material in the thickness direction was better than the maximum load-bearing capacity in the warp and weft directions. The compressive strength of the material in the warp and weft directions was lower than that in the thickness direction, and compression damage patterns in each direction also differed.

One persistent problem that many small rural towns face is housing adequacy, which encompasses interior and exterior structural conditions; assessments of heating, cooling, and sanitation systems; and residence size relative to space needs. The creation and reproduction of vibrant rural communities is grounded in the capacity of citizens to solve local housing problems. We posit that towns with strong norms of mutuality, high information flows, and inclusive behaviors have a civic structure that produces the capacity to frame and resolve housing concerns. We find that perceptions of civic structure are a significant factor in explaining the variation in rural housing adequacy, net of income, age, and tenure. This implies that the social and political environment is an important influence on the quality of housing stock found in rural places.