Thermal stress fracture of refractory lining components: Part II. Safe heating and cooling rates

1987 ◽  
Vol 18 (2) ◽  
pp. 365-370 ◽  
Author(s):  
F. Bradley ◽  
A. C. D. Chaklader ◽  
A. Mitchell
Keyword(s):  
Thermal Stress ◽  
Stress Fracture ◽  
Refractory Lining ◽  
Cooling Rates ◽  
Heating And Cooling

Thermal stress fracture of refractory lining components: Part I. Thermoelastic analysis

1987 ◽  
Vol 18 (2) ◽  
pp. 355-363 ◽  
Author(s):  
F. Bradley ◽  
A. C. D. Chaklader ◽  
A. Mitchell
Keyword(s):  
Thermal Stress ◽  
Stress Fracture ◽  
Refractory Lining ◽  
Thermoelastic Analysis

Thermal stress fracture of refractory lining components: Part III. Analysis of Fracture

1987 ◽  
Vol 18 (2) ◽  
pp. 371-380 ◽  
Author(s):  
F. Bradley ◽  
A. C. D. Chaklader ◽  
A. Mitchell
Keyword(s):  
Thermal Stress ◽  
Stress Fracture ◽  
Refractory Lining

Texture Evolution Under Fast Heating and Cooling Rates of Zirconium Alloys Studied In-Situ by Synchrotron X-Ray Diffraction

2020 ◽  
Author(s):  
Chi-Toan Nguyen ◽  
Alistair Garner ◽  
Javier Romero ◽  
Antoine Ambard ◽  
Michael Preuss ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Zirconium Alloys ◽  
X Ray Diffraction ◽  
Fast Heating ◽  
Cooling Rates ◽  
X Ray ◽  
Heating And Cooling

Discrepancy between electron heating and cooling rates derived from atmosphere Explorer-C measurements

1976 ◽  
Vol 81 (31) ◽  
pp. 5421-5429 ◽  
Author(s):  
L. H. Brace ◽  
W. R. Hoegy ◽  
H. G. Mayr ◽  
G. A. Victor ◽  
W. B. Hanson ◽  
...  
Keyword(s):  
Electron Heating ◽  
Cooling Rates ◽  
Heating And Cooling

Study of the Volume Deformation and Stress Development of Concrete Influenced by the Different Cooling Rate

2015 ◽  
Vol 744-746 ◽  
pp. 1495-1498
Author(s):  
Yi Fang ◽  
Xue Feng Song ◽  
Long Chen
Keyword(s):  
Thermal Stress ◽  
Cooling Rate ◽  
Temperature Control ◽  
Control Measures ◽  
Stress And Strain ◽  
Stress Tests ◽  
Volume Deformation ◽  
Cooling Rates ◽  
Stress Development ◽  
Concrete Placement

This paper studied the development of stress and strain influences by different cooling rates based on the concrete thermal stress tests. furthermore, discussed the temperature control measures for early concrete placement.

scholarly journals Analytical Modeling of Residual Stress in Laser Powder Bed Fusion Considering Part’s Boundary Condition

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 337 ◽  
Author(s):  
Elham Mirkoohi ◽  
Hong-Chuong Tran ◽  
Yu-Lung Lo ◽  
You-Cheng Chang ◽  
Hung-Yu Lin ◽  
...  
Keyword(s):  
Residual Stress ◽  
Thermal Stress ◽  
Kinematic Hardening ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Repeated Heating ◽  
Powder Bed ◽  
Heating And Cooling ◽  
Body Load ◽  
Point Body

Rapid and accurate prediction of residual stress in metal additive manufacturing processes is of great importance to guarantee the quality of the fabricated part to be used in a mission-critical application in the aerospace, automotive, and medical industries. Experimentations and numerical modeling of residual stress however are valuable but expensive and time-consuming. Thus, a fully coupled thermomechanical analytical model is proposed to predict residual stress of the additively manufactured parts rapidly and accurately. A moving point heat source approach is used to predict the temperature field by considering the effects of scan strategies, heat loss at part’s boundaries, and energy needed for solid-state phase transformation. Due to the high-temperature gradient in this process, the part experiences a high amount of thermal stress which may exceed the yield strength of the material. The thermal stress is obtained using Green’s function of stresses due to the point body load. The Johnson–Cook flow stress model is used to predict the yield surface of the part under repeated heating and cooling. As a result of the cyclic heating and cooling and the fact that the material is yielded, the residual stress build-up is precited using incremental plasticity and kinematic hardening behavior of the metal according to the property of volume invariance in plastic deformation in coupling with the equilibrium and compatibility conditions. Experimental measurement of residual stress was conducted using X-ray diffraction on the fabricated IN718 built via laser powder bed fusion to validate the proposed model.

Sign in / Sign up

Export Citation Format

Share Document