Temperature Responses of Composite Panels
Abstract
In this report, two transient heat conduction problems for application to the thermal evaluation of composite materials are analyzed and discussed. The purposes of these two analyses are at least two fold: One is to demonstrate by detailed numerical results that composite materials with a larger in-plane thermal conductivity than the transverse value exhibit lower surface temperatures when the thermal loading consists of irradiation by a concentrated cylindrical beam. Effective radial heat spread along the in-plane direction serves to reduce local heat accumulation and thereby mitigates heat-spot temperature rises. Accordingly, preventing or delaying damage due to high- intensity thermal radiation on composite surfaces can be enhanced by using materials with large in-plane thermal conductivities. The second objective of the investigation is to develop a methodology whereby composite panels undergoing cyclic heating and cooling can be analyzed for their periodic temperature responses. This is particularly important for determining thermal stresses resulting from alternating temperature fluctuations. The methodology developed is especially useful since numerical approaches can be very time- consuming and unreliable. Originator furnished keywords include: Composite Panels, Temperature Responses, Spot-Heating, Cyclic Heating.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1984
- Accession Number
- ADA150053
Entities
People
- L. S. Han
Organizations
- Ohio State University