Abstract

Sandwich panels are widely used in various industries, including the aerospace industry, where they have long been regarded because of their light-weight and high energy absorption capacity. This research introduces a novel type of sandwich panel whose raw material is widely used in the automotive industry. The materials used for manufacturing the sandwich panels addressed in this research are currently used in the cooling radiator structure for the engine of conventional vehicles. Such a radiator is nothing but a lattice of a set of B-shaped tubes and cooling fins. In this research, the crashworthiness properties of such a lattice are extracted along with various directions (samples A, B, and C). Moreover, the applicability of the considered lattices as the core of sandwich panels was studied. This research showed that the considered structures tend to exhibit maximum strength when the loading plane is parallel to the cooling fins. It was further figured out that the addition of aluminum shells to specimens A, B, and C can increase their energy absorption capacity by 85, 268, and 13%, respectively.

摘要

夹芯板广泛应用于各个行业，包括航空航天工业，长期以来因其重量轻、能量吸收能力高而受到人们的重视。本研究介绍了一种新型夹芯板，其原材料广泛应用于汽车行业。用于制造本研究中讨论的夹芯板的材料目前用于传统车辆发动机的冷却散热器结构。这样的散热器只不过是一组B形管和散热片的格子。在这项研究中，沿着不同方向（样本 A、B 和 C）提取了这种晶格的耐撞特性。此外，还研究了所考虑的格子作为夹芯板核心的适用性。这项研究表明，当负载平面平行于散热片时，所考虑的结构往往会表现出最大强度。进一步发现，在试件A、B、C中添加铝壳后，其能量吸收能力分别提高了85%、268%和13%。