Optimizing Sandwich Panel Thickness for Maximum Structural Strength > 자유게시판

In applications using sandwich panel systems, one of the most critical decisions is selecting the right thickness. These panels feature dual outer layers with a low-density core in between, providing high strength and stiffness while keeping weight low. Their benefits are especially valuable in aerospace, automotive, کانکس ویلایی and building industries. However, simply making the panel thicker does not always improve performance. The goal is to balance thickness against critical mechanical performance metrics.

Bending forces are predominantly resisted by the face layers. Increasing their thickness improves resistance to bending and reduces deflection under load. But the core plays an equally important role. Greater core thickness widens the moment arm between the skins, which significantly boosts the panel’s moment of inertia. Minimal core adjustments often result in major stiffness enhancements. However, if the core is too thick, it may become susceptible to core crushing or wrinkling, especially if the core material is not strong enough to support the increased spacing.

The interplay between skin and core dimensions must be carefully managed. If the face sheets are too thin relative to the core, the panel can experience delamination under load. Conversely, if the face sheets are too thick and the core too thin, the panel may become unnecessarily heavy without significant gains in strength. The ideal configuration varies based on load conditions, whether it is dynamic fatigue.

Material choice also influences the ideal thickness. For example, a rigid polymer foam may require a greater dimension to prevent compression failure, while a aluminum honeycomb can maintain strength with a slimmer profile due to its high surface-to-volume ratio. Long-term environmental exposure alters mechanical properties, so thickness must be chosen to account for service life considerations, not just initial strength.

FEA enables virtual testing of multiple thickness profiles to predict performance under actual operational loads. Physical trials are critical for confirming analytical predictions. In practice, the most efficient sandwich panels are those where thickness is strategically optimized—not over-engineered—to deliver the required strength with reduced weight. It enables lean design, lowers carbon footprint, and supports green construction.

True optimization balances performance, weight, and cost in equal measure. The best solution is the one that does more with less.