Impact Tolerant Paneling Material
- 详细技术说明
- Sandwich panels are used in many fields but have not been fully adopted in critical structural applications due to damage tolerance and safety concerns associated with debonding. This is a new type of composite sandwich panel that has superior debonding resistance and impact tolerance because of its state-of-the-art foam core.This light-weight sandwich panel contains a hybrid core consisting of a polymer matrix reinforced with a grid of hollow metallic millitubes, which increases the overall panel strength and provides resistance to buckling. Additionally, the sidewall and core are fully bonded, thereby minimizing the structural weaknesses caused by debonding. The panel is composed of lightweight materials, and the strength and weight of the panel allow it to be used for critical structural applications like automobile construction and military armor.
- *Abstract
-
Sandwich construction has been extensively used in various fields. However, sandwich panels have not been fully exploited in critical structural applications due to damage tolerance and safety concern. A major problem of sandwich panels is the vulnerability to impact loading, which can lead to a sudden loss of structural integrity and cause catastrophic consequences. In order to improve the energy absorption of sandwich panel under impact loading, a new sandwich core is proposed which is a hybrid core consisting of hollow metallic millitube grid stiffened polymer matrix. The objective of this study is to characterize its impact performances. Quasi-static low velocity impact test and ballistic impact test demonstrate that the new sandwich panel may be considered as a promising option for critical structural applications featured by multiple impact tolerance.
- *IP Issue Date
- None
- *IP Type
- Utility
- *Licensing
- Brian SheddAssistant DirectorTel: 225-615-8941Email: brianshedd@lsu.edu
- 国家
- United States
- 申请号码
- Pub. No.: US 2015/0300019 A1
- 国家/地区
- 美国
