Journal Published Online: 01 January 1992
Volume 20, Issue 1

Analysis of Gas-Fired Ceramic Radiant Tubes During Transient Heating: Part II—Thermoelastic Stress Analysis

CODEN: JTEVAB

Abstract

Transient radial and axial temperature distributions based on measured external surface temperatures and finite-element calculations were used with temperature dependent elastic material properties to determine the thermoelastic stresses experienced by reaction-bonded and sintered-alpha silicon-carbide open ended radiant tubes during gas-combustion beating. The resulting stresses exhibited a dependence on the radial temperature difference and the curvature of the axial temperature distribution. A failure rate analysis using a two-parameter Weibull formulation with a polyaxial stress approximation, the calculated surface and volume principal stresses, and temperature-dependent surface and volume Weibull strength data indicated low failure rates and the viability of both materials for the transient heating conditions studied.

Author Information

Segall, AE
Center for Advanced Materials, The Pennsylvania State University, University Park, PA
Hellmann, JR
Center for Advanced Materials, The Pennsylvania State University, University Park, PA
Pages: 8
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JTE11893J
ISSN: 0090-3973
DOI: 10.1520/JTE11893J