Publications

Preprints are provided free of charge for personal use.
Published articles may be downloaded at the doi links provided.

INTERNATIONAL JOURNALS

20. Analytical modeling of the transient ablation of a 3D C/C composite. J. Lachaud, Y. Aspa, G. Vignoles. International Journal of Heat and Mass Transfer. In Press.
Preprint

19. Theoretical study on the micro-scale oxidation of resin-infused carbon ablators. J. Ferguson, F. Panerai, J. Lachaud, N. N. Mansour. Carbon. 121 : 552-562, 2017.
doi: 10.1016/j.carbon.2017.06.013 Preprint

18. Thermodynamic properties of carbon-phenolic gas mixtures. J. B. Scoggins, J. Rabinovich, B. Barros-Fernandez, A. Martin, J. Lachaud, R. L. Jaffe, N. N. Mansour, G. Blanquart, T. E. Magin. Aerospace Science and Technology.  66 : 177-192, 2017.
doi: 10.1016/j.ast.2017.02.025  Preprint

17. A generic local thermal equilibrium model for porous reactive materials submitted to high temperatures. J. Lachaud, J. B. Scoggins, T. E. Magin, M. G. Meyer, N. N. Mansour. International Journal of Heat and Mass Transfer. 108 : 1406-1417, 2017.
doi: 10.1016/j.ijheatmasstransfer.2016.11.067  Preprint

16. Micro-tomography based analysis of thermal conductivity, diffusivity and oxidation behavior of rigid and flexible fibrous insulators. F. Panerai, J. C. Ferguson, J. Lachaud, A. Martin, M. J. Gasch, N. N. Mansour. International Journal of Heat and Mass Transfer. 108 : 801-811, 2017.
doi: 10.1016/j.ijheatmasstransfer.2016.12.048  Preprint

15. Detailed analysis of species production from the pyrolysis of Phenolic Impregnated Carbon Ablator. H.-W Wong, J. Peck, J. Assif, F. Panerai, J. Lachaud, N. N. Mansour. Journal of Analytical and Applied Pyrolysis. 122: 258-267, 2016.
doi: 10.1016/j.jaap.2016.09.016  Preprint

14. Effects of water phase change on the material response of low-density carbon-phenolic ablators. A. Omidy, F. Panerai, J. Lachaud, N. N. Mansour, A. Martin. Journal of Thermophysics and Heat Transfer Technical Notes. 30 (2): 473-478, 2016.
doi: 10.2514/1.T4814  Preprint

13. Modeling the oxidation of low-density carbon fiber materials based on micro-tomography. J. C. Ferguson, F. Panerai,  J. Lachaud, A. Martin,  S. C. Bailey and N. N. Mansour. Carbon, 96, 57-65, 2016. doi:10.1016/j.carbon.2015.08.113  Preprint

12. Detailed chemical equilibrium model for porous ablative materials. J. Lachaud, T. van Eekelen, J. B. Scoggins, T. E. Magin, N. N. Mansour. International Journal of Heat and Mass Transfer, 90, 1034-1045, 2015.
doi:10.1016/j.ijheatmasstransfer.2015.05.106  Preprint

11. Quantitative determination of species production from the pyrolysis of a phenol-formaldehyde resin. H.-W Wong, J. Peck, R. Bonomi, J. Assif, G. Reinisch, J. Lachaud, N. N. Mansour. Polymer Degradation and Stability, 112, 122-131, 2015.
doi:10.1016/j.polymdegradstab.2014.12.020  Preprint
       
10. Porous material analysis toolbox based on OpenFoam and applications. J. Lachaud, N. N. Mansour.  Journal of Thermophysics and Heat Transfer, 28 (2): 191--202, 2014.
doi: 10.2514/1.T4262  Preprint

9. Flow-tube oxidation experiments on the carbon preform of PICA. F . Panerai, A. Martin, N. N. Mansour, S. A. Sepka, J. Lachaud. Journal of Thermophysics and Heat Transfer, 40 (2): 181-190, 2014.
doi: 10.2514/1.T4265 Preprint

8. Numerical validation of an effective radiation heat transfer model for fiber preforms. A. J. van Eekelen, J. Lachaud. Journal of Spacecraft and Rockets, Engineering Notes. 48 (3): 534-537, 2011.
doi: 10.2514/1.51865 Preprint

7. Benefits of X-ray CMT for the modeling of C/C composites. O. Coindreau, C. Mulat, C. Germain, J. Lachaud, G. L. Vignoles. Advanced Engineering materials, 13 (3): 168-185, 2011.
doi: 10.1002/adem.201000233  Preprint

6. Multiscale approach to ablation modeling of phenolic impregnated carbon ablators. J. Lachaud, I. Cozmuta, N. N. Mansour. Journal of Spacecraft and Rockets, 47 (6): 910-921, 2010.
doi: 10.2514/1.42681  
Preprint

5. Ablation of carbon-based materials: multiscale roughness modelling. Gerard L. Vignoles, Jean Lachaud, Yvan Aspa, Jean-Marc Goyhénèche. Composites Science and Technology, 69 (9): 1470-1477, 2009.   doi:10.1016/j.compscitech.2008.09.019  Preprint

4. A Brownian motion technique to simulate gasification and its application to C/C composite ablation.
J. Lachaud, G.L. Vignoles. Computational Materials Science, 44 (4): 1034-1041, 2009. doi:10.1016/j.commatsci.2008.07.015  Preprint Movie

3. Analytical modeling of the steady state ablation of a 3D C/C composite. J. Lachaud, Y. Aspa, G. L. Vignoles. Int. J. of Heat and Mass transfer, 51 (9-10): 2618-2627, 2008.
doi:10.1016/j.ijheatmasstransfer.2008.01.008  Preprint

2. A theoretical/experimental approach to the intrinsic oxidation reactivities of C/C composites and of their
components. J. Lachaud, N. Bertrand, G. L. Vignoles, G. Bourget, F. Rebillat, and P. Weisbecker.
Carbon, 45 (14): 2768-2776, 2007. doi:10.1016/j.carbon.2007.09.034  Preprint

1. The Film-boiling densification process for C/C composite fabrication : from local scale to optimization.
G. Vignoles, J.M. Goyhénèche, P. Sebastian, J. R. Puiggali, J.F. Lines, J. Lachaud, P. Delhaes, M. Trinquecostes. Chemical Engineering Science, 61 (17): 5636-5653, 2006.
doi:10.1016/j.ces.2006.04.025


BOOK CHAPTERS

A pragmatic model for high temperature reactive porous media, with application to ablative materials and biomass pyrolysis. J. Lachaud (2015). In: Porous media interaction with high temperature and high speed flows. Eds O. Chazot and F. Panerai. NATO Science and Technology Organization, Paris, France. STO-AVT-261, chapter 9.
Preprint

Environmental Effects: Ablation of C/C Materials - Surface Dynamics and Effective Reactivity. G.L. Vignoles, J. Lachaud, Y. Aspa (2014). In: Ceramic Matrix Composites: Materials, Modeling and Technology. Eds N. P. Bansal and J. Lamon. John Wiley & Sons, Inc., Hoboken, NJ, USA.
doi: 10.1002/9781118832998.ch12

Ablation in Carbon/Carbon Composites: Microscopic Observations and 3D Numerical Simulation of Surface Roughness Evolution. J. Lachaud, G. L. Vignoles, J.-M. Goyhénèche, J.-F. Epherre (2006). In: Interfaces in Heterogeneous Ceramic Systems: Ceramic Transactions Series, Volume 191. Eds L. P. Cook, S.-i. Tanaka, W. Wong-Ng and R. Schwartz. John Wiley & Sons, Inc., Hoboken, NJ, USA.
doi: 10.1002/9781118144084.ch12 Preprint


Ph. D. DISSERTATION (In English - with a synthesis chapter in french)

Physico-chemical modeling of carbon-based composite ablation.
Modélisation physico-chimique de l’ablation de matériaux composites en carbone.
Bordeaux 1 University, France. PhD thesis n°3291, 2006.


CONFERENCES WITH PAPER


29. Analysis of Fibrous Felts for Flexible Ablators Using Synchrotron Hard X-Ray Micro-Tomography.
F. Panerai, J. Ferguson,  J. Lachaud, A. Martin,  M. J. Gasch, N. N. Mansour. 8th European Symposium on Aerothermodynamics for Space Vehicles.  Lisbon, Portugal, March 2-4, 2015.
Preprint

28. Quantitative determination of species production from the pyrolysis of the Phenolic Impregnated Carbon Ablator (PICA).
H.-W. Wong, J. Peck, J. Assif, J. Lachaud, N. N. Mansour. 53rd AIAA Aerospace Sciences Meeting, January 2015. AIAA paper 2015-1447.
doi: 10.2514/6.2015-1447

27. Toward Ablative Material Response Coupling in DPLR.
S. Muppidi, M. Barnhardt, J. Lachaud, N. N. Mansour. 11th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, June 2014. AIAA paper 2014-2120.
doi: 10.2514/6.2014-2120

26. Numerical and experimental study of carbon fiber oxidation.
F. Panerai, J. Lachaud, N. N. Mansour, A. Martin. 52nd AIAA Aerospace Sciences Meeting, National Harbor, MD, 13-17 January 2014. AIAA Paper 2014-1208.
doi: 10.2514/6.2014-1208

25. Measurement of pyrolysis products from phenolic polymer thermal decomposition.
H.-W. Wong, J. Peck, R. Edwards, G. Reinisch, J. Lachaud, N. N. Mansour. 52nd AIAA Aerospace Sciences Meeting, National Harbor, MD, 13-17 January 2014. AIAA paper 2014-1388.
doi: 10.2514/6.2014-1388

24. Porous-material Analysis Toolbox based on OpenFOAM-extend and Applications.
J. Lachaud, N. Mansour. 44th AIAA Thermophysics Conference, San Diego, CA, Jun 24-28 2013.  AIAA paper 2013-2767.
doi: 10.2514/6.2013-2767

23. A New Approach To Light-Weight Ablators Analysis: From Micro-Tomography Measurements to Statical Analysis and Modeling.
N.N. Mansour, F. Panerai, A. Martin, D.Y. Parkinson, A. MacDowell, A. Haboub, T. A. Sandstrom, T. Fast, G. L. Vignoles, J. Lachaud.  44th AIAA Thermophysics Conference, San Diego, CA, Jun 24-28 2013. AIAA Paper 2013-2768.
doi: 10.2514/6.2013-2768

22. Flow-tube Oxidation Experiments on the Carbon Preform of PICA.
F. Panerai, A. Martin, N. N. Mansour, S. A. Sepka, J. Lachaud. 44th AIAA Thermophysics Conference, San Diego, CA, Jun 24-28 2013. AIAA Paper 2013-2769.
doi: 10.2514/6.2013-2769

21. Validation of a volume-averaged fiber-scale model for the oxidation of a carbon-fiber preform.
J. Lachaud, N. N. Mansour, A. Ceballos, D. Pejakovic, L. Zhang, J. Marschall. 42nd AIAA Thermophysics Conference, 27 - 30 Jun 2011, Honolulu, Hawaii.  AIAA Paper 2011-3640.
doi: 10.2514/6.2011-3640 
Preprint

20. Stagnation line approximation for ablation thermochemistry.
J. de Muelenaere, J. Lachaud, N. N. Mansour, T. E. Magin. 42nd AIAA Thermophysics Conference, 27 - 30 Jun 2011, Honolulu, Hawaii. AIAA Paper 2011-3616.
doi: 10.2514/6.2011-3616

19. High-Fidelity Charring Ablator Thermal Response Model.
N. N. Mansour, J. Lachaud, T. E. Magin, J. de Muelenaere, Y.-K. Chen. 42nd AIAA Thermophysics Conference, 27 - 30 Jun 2011, Honolulu, Hawaii. AIAA Paper 2011-3124.
doi: 10.2514/6.2011-3124 
Preprint

18. A short review of ablative material response models and simulation tools.
J. Lachaud, T.E. Magin, I. Cozmuta, N.N. Mansour. 7th Aerothermodynamics Symposium, 9-12 May 2011, Brugge, Belgium. Edited by L Ouwehand, ESA Publications Division, ESTEC, Noordwijk, The Netherlands. ESA SP-692.
ISBN : 978-92-9221-256-8 Preprint

17. Radiation Heat-Transfer Model for the Ablation Zone of Low-Density Carbon-Resin Composites.
T. van Eekelen, J. Lachaud. 10th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, Jun 28-1 Jul 2010, Chicago, Illinois. AIAA paper 2010-4904.
doi: 10.2514/6.2010-4904 
Preprint

16. Ablation of C/C composites: roughness and reactivity.
G. L. Vignoles, J. Lachaud, Y. Aspa, M. Quintard. Carbon 2010, Clemson, SC, USA, 7-11 July 2010.

15. Effective surface recession laws for the physico-chemical ablation of C/C composite materials.
G. L. Vignoles, J. Lachaud, Y. Aspa, M. Quintard.  In “Mechanical Properties and Performance of Engineering Ceramics and Composites V”, Dileep Singh and Jonathan Salem, Editors; Sanjay Mathur and Tatsuki Ohji, Volume Editors, Ceram. Eng. And Sci. Procs vol. 31, n° 2, The American Ceramic Society, Westerville, OH (2010), pp. 351-360.

14. Microscopic scale simulation of the ablation of fibrous materials.
J. Lachaud, N. Mansour. 48th AIAA Aerospace Sciences Meeting, Orlando, Florida, Jan. 4-7, 2010. AIAA Paper 2010-0984.
doi: 10.2514/6.2010-984 
Preprint Slides

13. Modélisation de la pyrolyse d’un matériau composite à fibres courtes orientées aléatoirement.
J. Lachaud, Nagi Mansour, Susan White, Bernie Laub, Jean-Marc Bouilly. Congrès Français de Thermique, SFT 2008, Toulouse, France, June 2008. Postprint (in French)  Preprint (in English)

12. Résolution analytique et validation expérimentale d'un modµele multiéchelle d'ablation pour les composites C/C.
J. Lachaud, G. Vignoles, J.-M. Goyhénèche, J.-F. Epherre. Congrès Français de Thermique, SFT 2007, Ile des Embiez, France, May 2007 (in French). Preprint (in French)

11. 3D Modelling of thermochemical ablation in carbon-based materials : effect of anisotropy on surface roughness onset.
J. Lachaud, Y. Aspa, G. L. Vignoles, J.-M. Goyhénèche. Proceedings of the 10th International Symposium on Materials in a Space Environment, Collioure, France. ESA-SP 616,  Septembre 2006, Edited by L. Conroy, ESA Publications Division, ESTEC, Noordwijk, The Netherlands. Preprint

10. Experimental characterization and 3D modeling of carbon/carbon composites oxidation: role of the interphase.
J. Lachaud, Y. Aspa, G. Vignoles, G. Bourget. In J. Lamon, editor, 12th European Conference on Composite Materials (ECCM12), Biarritz. 29th August – 1st September 2006. Preprint

9. Identifcation of intrinsic carbon fiber oxidation kinetics from experimental data and CFD modeling.
N. Bertrand, J. Lachaud, G. Bourget, G. L. Vignoles, F. Rebillat. In J. Lamon, editor, 12th European Conference on Composite Materials (ECCM12), Biarritz. 29th August – 1st September 2006. Preprint

8. Simulation of C/C composites ablation using a VOF method with moving reactive interface.
Y. Aspa, J. Lachaud, G. Vignoles, M. Quintard. In J. Lamon, editor, 12th European Conference on Composite Materials (ECCM12), Biarritz. 29th August – 1st September 2006. Preprint

7. Ablation of carbon-based materials : multiscale roughness modeling.
G. Vignoles, J. Lachaud, Y. Aspa, J.-M. Goyhénèche.  In J. Lamon, editor, 12th European Conference on Composite Materials (ECCM12), Biarritz. 29th August – 1st September 2006. Postprint

6. Effective Surface Approach for the Design of Ablative Composites.
Y. Aspa, J. Lachaud, G. Vignoles, M. Quintard. Proceedings of the 1st International ARA Days : Atmospheric Reentry Systems Missions and Vehicles, Edited by T. Leuveugle. Arcachon, France, July 2006.

5. Ablation of carbon/carbon composites : 3D multiscale simulation of surface roughness evolution.
J. Lachaud, G. Vignoles, Y. Aspa, J.-F. Epherre. Proceedings of the 1st International ARA Days : Atmospheric Reentry Systems Missions and Vehicles, Edited by T. Leuveugle. Arcachon, France, July 2006. Preprint

4. Identification of microscale ablative properties of C/C composites using inverse simulation.
Y. Aspa, J. Lachaud, G. Vignoles, M. Quintard. 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference. 5 - 8 June 2006, San Francisco, California. AIAA Paper 2006-2911.
doi: 10.2514/6.2006-2911
Preprint

3. Roughness evolution in ablation of carbon-based materials : multi-scale modelling and material analysis.
G. Vignoles, J. Lachaud, Y. Aspa. Proceedings of the 5th European Workshop on Thermal Protection Systems and Hot Structure. ESA SP 631, May 2006. Edited by K. Fletcher, ESA Publications Division, ESTEC, Noordwijk, The Netherlands. ESA SP 631. Preprint

2. Modélisation 3D de l'ablation thermochimique des composites C/C.
J. Lachaud, Y. Aspa, G. Vignoles, J.-M. Goyhénèche. Congrés Français de Thermique, SFT 2006, Ile de Ré, France, May 2006 (in French). Preprint (in French)

1. Ablation in carbon/carbon composites : microscopic observations and 3D numerical simulation of surface roughness evolution.
J. Lachaud, G. L. Vignoles, J.M. Goyhénèche, J.-F. Epherre. 6th Pacific Rim Conference on Ceramic and Glass Technology (PacRim 6), September  2005, Maui, Hawaii. Published in, Ceramic Transactions, 191: 149-160, 2006. Ceramic Transactions, 191 : 149-160, 2006 (edited version). Preprint


CONFERENCES WITHOUT PAPER

16. V. Leroy, J. Lachaud, T. E. Magin. Quantitative guidelines on radiation model selection for material response simulation. 14th International Planetary Probe Workshop, June 12-16 2017, The Hague, The Netherlands. Presentation

15. V. Leroy, J. Lachaud, T. E. Magin. Impact of radiation transfer modeling on the simulation of the thermal response of ablating spacecraft thermal protection systems. InterPore 2016, May 9-12 2016, Cincinnati, Ohio, USA. Presentation

14. Finite-rate chemistry of phenolic resin pyrolysis gases flowing through a porous char: first investigations.
P. Shah, H.-W. Wong, J. Peck, J. Lachaud, F. Panerai, N. N. Mansour. 7th Ablation Workshop. October 21-22 2015, University of Tennessee Space Institute, Tullahoma, TN, USA.
& 2015 AIChE annual meeting, November 8-13, 2015, Salt Lake City, UT, USA.

13. Detailed chemical equilibrium model for porous ablative materials.
J. B. Scoggins, J. Lachaud, T. van Eekelen, J. B. Scoggins, T. E. Magin, N. N. Mansour. 7th Ablation Workshop. October 21-22 2015, University of Tennessee Space Institute, Tullahoma, TN.

12. A Technology Transfer Opportunity: from Ablative Heat Shield Design to Biomass Pyrolysis Reactor Design.
J. Lachaud, T. E. Magin. 8th European Symposium on Aerothermodynamics for Space Vehicles. Lisbon, Portugal, March 2-4, 2015.

11. Light Weight Ablator Response Model Development and Challenges.
N. N. Mansour, F. Panerai, A. Martin, J. Lachaud. 8th European Symposium on Aerothermodynamics for Space Vehicles. Lisbon, Portugal, March 2-4, 2015.

10. Ablator Response Model Development: From Flight Data Back to Fundamental Experiments.
N. N. Mansour, J. Lachaud. 1st Gordon Research Conference on Atmospheric Reentry, 3-8 Feb. 2013, Ventura, California.

9. High-fidelity modeling of low-density carbon phenolic ablators.
J. Lachaud, N. N. Mansour. Invited by Dr. M. Wright. NASA Fundamental Aeronautic Program Technical Conference. March 15-17, 2011, Cleveland, OH.  

8. Experimental Data Need for High-Fidelity Material-Response Models.
J. Lachaud, I. Cozmuta, N. N. Mansour. Invited by Drs. M. W. Wright and J. D. Schmisseur. 4th AF-SNL-NASA Ablation Workshop, March 1-3, 2011, Albuquerque, NM.

7. Roughness induced by chemical ablation in carbon-based ablators.
Y. Aspa, J. Lachaud, G. Vignoles, M. Quintard. 4th AF-SNL-NASA Ablation Workshop, March 1-3, 2011, Albuquerque, NM.

6. A pyrolysis and ablation toolbox based on OpenFOAM - with application to material response under high-enthalpy environments.
J. Lachaud, N. N. Mansour. 5th OpenFOAM Workshop, Chalmers, Gothenburg, Sweden, June 21-24, 2010.

5. Recent progress toward 3D material response modeling. J. Lachaud, N. N. Mansour.  Invited by Drs. M. W. Wright and J. D. Schmisseur. 3rd AFOSR-NASA-SNL Ablation Workshop, March 2010, Austin, TX.

4. Ablation response of fibrous materials with different matrices: modeling, comparison, and application.
J. Lachaud, I. Cozmuta, N. N. Mansour. 6th European Workshop on Thermal Protection Systems and Hot Structures. Stuttgart, Germany, April 1-3, 2009.

3. Ablation of PICA-like Materials: Surface or Volume phenomenon?
J. Lachaud, I. Cozmuta, N. N. Mansour. 6th International Planetary Probe Workshop, Atlanta, June 2008.

2. Ablation of C/C composites : roughness and reactivity.
G. L. Vignoles, J. Lachaud, Y. Aspa. 1st International Carbon Composite Conference in Aerospace Valley , Arcachon, 17-19 Sept, 2007.

1. Ablation de matériaux composites Carbone/Carbone : rugosité et réactivité.
G. L. Vignoles, J. Lachaud, Y. Aspa. Conférence plénière invitée aux Journées Scientifiques du Groupe Français d’Etude des Carbones, Carcans-Maubuisson (Gironde), March 2007 (in French).


ABLATION TEST-CASES

Ablation Test-Case Series# 3. Version 2.0.
T. van Eekelen, J. Lachaud, A. Martin,  D. Bianchi. Prepared for the 6th Ablation Workshop, April 10-11 2014, University of Illinois at Urbana-Champaign.

Ablation Test-Case Series# 2. Version 2.8.
J. Lachaud, A. Martin, T. van Eekelen, I. Cozmuta. Prepared for the 5th Ablation Workshop, Feb. 28-March, 2012, Lexington, Kentucky.

Ablation Test-Case Series# 1 - Version 1.1.
J. Lachaud, A. Martin, I. Cozmuta, B. Laub. Prepared for the 4th AF-SNL-NASA Ablation Workshop, March 1-3, 2011, Albuquerque, New Mexico.

Properties of the Theoretical Ablative Composite for Open Testing (TACOT). J. Lachaud, T. van Eekelen, A. Martin, D. Bianchi, I. Cozmuta, B. Laub, J. de Muelenaere, J. B. Scoggins, J.-M. Bouilly, J.-M. Dupillier, B. Blackwell, M. Howard.  TACOT_v3.0.xls

Code-to-Code Comparison, and Material Response Modeling of Stardust and MSL Using PATO and FIAT.

A. D. Omidy,  F. Panerai, J. Lachaud, N. N. Mansour, I. Cozmuta, A. Martin.
NASA CR-2015-218960, 2015, 36 pages. NASA Technical Report Server  Preprint