(Student Paper) Analysis and Design of Corrugated-Core Sandwich Panels for Thermal Protection Systems of Space Vehicles

Bapanapalli, Satish K.; Martínez, Óscar; Gogu, Christian; Sankar, Bhavani V.; Haftka, Raphael T.; Blosser, Max L.

doi:10.2514/6.2006-1942

Cited by 65 publications

(62 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 11 shows three snapshots of the through-the-panel-thickness temperature distribution of the ITPS panel when (i) the temperature at the BFS is a maximum, (ii) the temperature at the TFS is a maximum, and (iii) the temperature difference between the TFS and BFS is a maximum. The latter temperature distribution, exhibiting a temperature differential of 779 ºK, was selected for all subsequent analyses involving thermal loading because previous optimizations studies showed this case to yield the highest stress levels [5]. It is interesting to note in Figure 11 that nearly isothermal conditions of the BFS and the TFS (the latter is significantly thinner than the BFS) are present for all three temperature snapshots.…”

Section: Resultsmentioning

confidence: 93%

“…They were oriented along the thickness of the panel such that the BFS and TFS were discretized with five equal length elements each (0.782 mm and 0.240 mm, respectively), and the core material between the face sheets was discretized with 20 equal length elements (4.37 mm each). This simplified approach was earlier justified by comparing the results obtained from 1-D and 2-D heat transfer analyses by Bapanapalli [5]. The panel's core and webs were modeled as a thermally homogenous resultant material with its resultant conductivity and specific heat being determined through the rule of mixtures as [4][5] ( ) ) (…”

Section: A Heat Transfer Modelmentioning

confidence: 99%

“…This simplified approach was earlier justified by comparing the results obtained from 1-D and 2-D heat transfer analyses by Bapanapalli [5]. The panel's core and webs were modeled as a thermally homogenous resultant material with its resultant conductivity and specific heat being determined through the rule of mixtures as [4][5] ( ) ) (…”

Section: A Heat Transfer Modelmentioning

confidence: 99%

“…The above panel concept was studied extensively in the past for structural optimization under thermal loading only [2][3][4][5]. The geometric parameters explored in the optimization studies for fixed areal panel dimensions are illustrated in Figure 2.…”

Section: Z Y Xmentioning

confidence: 99%

See 3 more Smart Citations

Thermal-Acoustic Analysis of a Metallic Integrated Thermal Protection System Structure

Behnke¹,

Sharma²,

Przekop³

et al. 2010

51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

17
0
9
0

View full text Add to dashboard Cite

A study is undertaken to investigate the response of a representative integrated thermal protection system structure under combined thermal, aerodynamic pressure, and acoustic loadings. A two-step procedure is offered and consists of a heat transfer analysis followed by a nonlinear dynamic analysis under a combined loading environment. Both analyses are carried out in physical degrees-of-freedom using implicit and explicit solution techniques available in the Abaqus commercial finite-element code. The initial study is conducted on a reduced-size structure to keep the computational effort contained while validating the procedure and exploring the effects of individual loadings. An analysis of a full size integrated thermal protection system structure, which is of ultimate interest, is subsequently presented. The procedure is demonstrated to be a viable approach for analysis of spacecraft and hypersonic vehicle structures under a typical mission cycle with combined loadings characterized by largely different time-scales.

show abstract

Section: Resultsmentioning
confidence: 93%

Section: A Heat Transfer Modelmentioning
confidence: 99%

Section: Z Y Xmentioning
confidence: 99%

See 2 more Smart Citations
Thermal-Acoustic Analysis of a Metallic Integrated Thermal Protection System Structure
Behnke¹,
Sharma²,
Przekop³
et al. 2010
51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
17
0
9
0
View full text Add to dashboard Cite
A study is undertaken to investigate the response of a representative integrated thermal protection system structure under combined thermal, aerodynamic pressure, and acoustic loadings. A two-step procedure is offered and consists of a heat transfer analysis followed by a nonlinear dynamic analysis under a combined loading environment. Both analyses are carried out in physical degrees-of-freedom using implicit and explicit solution techniques available in the Abaqus commercial finite-element code. The initial study is conducted on a reduced-size structure to keep the computational effort contained while validating the procedure and exploring the effects of individual loadings. An analysis of a full size integrated thermal protection system structure, which is of ultimate interest, is subsequently presented. The procedure is demonstrated to be a viable approach for analysis of spacecraft and hypersonic vehicle structures under a typical mission cycle with combined loadings characterized by largely different time-scales.
show abstract

“…Thermal protection systems (TPS) are therefore required to maintain the underlying structural temperature within acceptable limits [1]. Conventional TPS are not load-bearing components, while an integrated thermal protection system (ITPS) is capable of bearing both mechanical and thermal loads [2,3]. Both metal foam core and corrugated core have been widely investigated to achieve this goal [3][4][5][6][7][8][9].…”

Section: Introductionmentioning
confidence: 99%

Thermal-Mechanical Optimization of Folded Core Sandwich Panels for Thermal Protection Systems of Space Vehicles
Zhou
¹
,
Zhijin
²

2017
International Journal of Aerospace Engineering
11
0
5
0
View full text Add to dashboard Cite

The integrated thermal protection system (ITPS) is a complicated system that addresses both mechanical and thermal considerations. An M-pattern folded core sandwich panel packed with low-density insulation material provides inherently low mass for a potential ITPS panel. Herein, we identify the most influential geometric parameters and establish a viable, computationally efficient optimization procedure. Variables considered for optimization are geometric dimensions of the ITPS, while temperature and deflection are taken as constraints. A one-dimensional (1D) thermal model based on a modified form of the rule of mixtures was established, while a three-dimensional (3D) model was adopted for linear static analyses. Parametric models were generated to facilitate a design of experiment (DOE) study, and approximate models using radial basis functions were obtained to carry out the optimization process. Sensitivity studies were first conducted to investigate the effect of geometric parameters on the ITPS responses. Then optimizations were performed for both thermal and thermal-mechanical constraints. The results show that the simplified 1D thermal model is able to predict temperature through the ITPS thickness satisfactorily. The combined optimization strategy evidently improves the computational efficiency of the design process showing it can be used for initial design of folded core ITPS.

show abstract

Thermo-structural optimization of integrated thermal protection panels with one-layer and two-layer corrugated cores based on simulated annealing algorithm
Zhao
¹
,
Li
²
,
Zhang
³

et al. 2014
Struct Multidisc Optim
27
0
4
0
View full text Add to dashboard Cite

(Student Paper) Analysis and Design of Corrugated-Core Sandwich Panels for Thermal Protection Systems of Space Vehicles

Cited by 65 publications

References 6 publications

Thermal-Acoustic Analysis of a Metallic Integrated Thermal Protection System Structure

Thermal-Acoustic Analysis of a Metallic Integrated Thermal Protection System Structure

Thermal-Mechanical Optimization of Folded Core Sandwich Panels for Thermal Protection Systems of Space Vehicles

Thermo-structural optimization of integrated thermal protection panels with one-layer and two-layer corrugated cores based on simulated annealing algorithm

Contact Info

Product

Resources

About