Tristan Giesa
Tristan Giesa, Ph.D., P.E.
Managing Engineer
Mechanical Engineering
Düsseldorf (Germany)

Dr. Giesa specializes in solid mechanics, mechanical testing, fatigue analysis, finite element analysis, damage modeling, and composite engineering. He has applied his expertise to a range of engineering fields, including design and failure analysis of medical devices, aerospace, consumer electronics, and wind energy. Dr. Giesa has assisted clients with mechanical design reviews, regulatory approval, design and execution of custom mechanical tests, fatigue analysis and testing, and modeling of complex structural and thermal systems.

Dr. Giesa obtained his Ph.D. from MIT (Boston, USA), in Civil and Environmental Engineering with specialization in Mechanics and Materials. His doctoral research at MIT focused on the mechanics of biological materials, large-scale simulation of protein-water interactions, and fracture analysis of biopolymers and heterogeneous composite materials. Dr. Giesa is also a licensed Diplom-Ingenieur (Master of Science equiv.) in mechanical engineering with specialization in engineering design, and as a teaching assistant at RWTH Aachen and MIT, Dr. Giesa has given lectures in several courses in engineering mechanics. Prior to joining Exponent, Dr. Giesa worked as a research intern at Airbus and was involved in the engineering design and fracture analysis of composite structural components.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2015
  • Dip. Ing., Mechanical Engineering, RWTH Aachen University, Germany, 2011,

    summa cum laude

  • Springorum Memorial Coin, RWTH Aachen, 2013

    MIT Schoettler Graduate Fellowship

    Scholar of the German National Academic Foundation (Studienstiftung Deutsches Volk)

    Best Paper Award, NEMB Conference Boston MA, 2013, ASME

LICENSES & CERTIFICATIONS

Licensed Professional Mechanical Engineer, California, #38945

LANGUAGES

  • German
  • Russian

Publications

Giesa T, Schuetz R, Fratzl P, Buehler MJ, Masic A. Unraveling the Molecular Requirements for Macroscopic Silk Supercontraction. ACS Nano 11 (10), 9750-9758, 2017.

Sultan MA, Westcott ZC, Hughes ZE, Palafox-Hernandez JP, Giesa T, et al. Aqueous Peptide–TiO2 Interfaces: Isoenergetic Binding via Either Entropically or Enthalpically Driven Mechanisms. ACS Applied Materials & Interfaces 8 (28), 18620-18630, 2016.

Giesa T, Perry CC, Buehler MJ. Secondary Structure Transition and Critical Stress for a Model of Spider Silk Assembly. Biomacromolecules, 2015.

Parambath M, Hanley QS, Martin-Martinez FJ, Giesa T, Buehler MJ, Perry CC. The nature of the silicaphilic fluorescence of PDMPO. Physical Chemistry Chemical Physics, 2015

Dimas LS, Veneziano D, Giesa T, Buehler MJ. Probability distribution of fracture elongation, strength and toughness of notched rectangular blocks with lognormal Young's modulus. Journal of the Mechanics and Physics of Solids 84, 116-129, 2015

Brommer DB, Giesa T, Spivak DI, Buehler MJ. Categorical prototyping: incorporating molecular mechanisms into 3D printing. Nanotechnology 27 (2), 2015

Giesa T, Jagadeesan R, Spivak DI, Buehler MJ. Matriarch - A Python Library for Materials Architecture. ACS Biomaterials & Engineering 10 (1), 1009-1015, 2015.

Dimas LS, Veneziano D, Giesa T, Buehler MJ. Random Bulk Properties of Heterogeneous Rectangular Blocks with Lognormal Young’s Modulus: Effective Moduli. Journal of Applied Mechanics 82 (1), 011003, 2015

Giesa T, Pugno NM, Wong JY, Kaplan DL, Buehler MJ. What’s Inside the Box? – Length Scales that Govern Fracture Processes of Polymer Fibers. Advanced Materials 26 (3), 412-417, 2014

Dimas LS, Giesa T, Buehler MJ. Coupled Continuum and Discrete Analysis of Random Heterogeneous Materials: Elasticity and Fracture. Journal of the Mechanics and Physics of Solids 63, 481-490, 2014

Giesa, Buehler MJ. Nanoconfinement and the Strength of Biopolymers. Annual Reviews of Biophysics 42, 651-673, 2013

Giesa T, Pugno NM, Buehler MJ. Natural Stiffening Increases Flaw Tolerance of Biological Fibers. Physical Review E 86 (4), 041902, 2012

Giesa T, Spivak DI, Buehler MJ. Category Theory Based Solution for the Building Block Replacement Problem in Materials Design. Advanced Engineering Materials 14 (9), 810-817, 2012

Gronau G, Krishnaji ST, Kinahan ME, Giesa T, Wong JY, Kaplan DL, Buehler MJ. A review of combined experimental and computational procedures for assessing biopolymer structure–process–property relationships. Biomaterials 33 (33), 8240-8255, 2012

Giesa T, Spivak DI, Buehler MJ. Reoccurring Patterns in Hierarchical Protein Materials and Music: The Power of Analogies. BioNanoScience 1 (4), 153-161, 2011

Spivak DI, Giesa T, Wood E, Buehler MJ. Category Theoretic Analysis of Hierarchical Protein Materials and Social Networks. PLoS One 6 (9), e23911, 2011

Giesa T, Arslan M, Pugno NM, Buehler MJ. Nanoconfinement of Spider Silk Fibrils Begets Superior Strength, Extensibility and Toughness. Nano Letters 11 (11), 5038-5046, 2011

Book Chapters and Contributions

Giesa T, Buehler MJ. Spidermans Geheimnis. Physik in unserer Zeit 44 (2), 72-79, 2013

Giesa T, Bratzel GH, Buehler MJ. Modeling and Simulation of Hierarchical Protein Materials. In: Nano and Cell Mechanics: Fundamentals and Frontiers, John Wiley & Sons, Ltd, 389-409, 2012

Presentations

Giesa T, Perry CC, Buehler MJ. Secondary Structure Transition and Critical Stress during the Assembly of Spider Silk Fibers, MRS Conference, Boston, MA, 2015. 

Giesa T, Dimas LS, Buehler MJ, A theory for the fracture mechanics of materials with heterogeneous elastic properties. IUTAM Symposium on “Multiscale modeling and uncertainty quantification of materials and structures”, Santorini, Greece, 2013.

Giesa T, Buehler MJ. Multi-scale mechanics of spider silk fibers -- hierarchical design begets macro-scale strength and robustness. SIAM and CCE Symposium, MIT, Boston, MA, 2013.

Giesa T, Perry CC, Buehler MJ. Secondary Structure Transitions in Spider Silk: a Simulation Approach. MRS Conference, Boston, MA, 2013.

Giesa T, Dimas LS, Buehler MJ. Modeling fracture of random media via stochastic molecular mechanics. APS Conference, Baltimore, MA, 2013.

Giesa T, Buehler MJ. Bottom-up modeling of biological materials – from molecules to structures. Biophysics Symposium, MIT, Boston, MA, 2012.

Dimas LS, Giesa T, Buehler MJ. Modeling Fracture of Random Media via Stochastic Molecular Mechanics. MRS Conference, Boston, MA, 2012.

Giesa T, Buehler MJ. Increased flaw tolerance length scales in biological fibers by nanoconfinement. Computation for Design and Optimization Symposium, MIT, Boston, MA, 2012.

Giesa T, Spivak DI, Buehler MJ. Material Ologs as a Mathematically Rigorous Approach to the Building Block Replacement Problem. MRS Conference, Boston, MA, 2012.

Giesa T, Buehler MJ. Design of de Novo Hierarchical Materials: Application of Category Theory to Protein Materials. MRS Conference, Boston, MA, 2011.

Academic Appointments

Research Affiliate, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology (2016-2018)

Professional Affiliations

VDI (German Society of Mechanical Engineers, Member)

ASME (American Society of Mechanical Engineers, Member)

DPG (German Physical Society, Member)

Additional Information

Peer Reviewer

Journal of the Mechanical Behavior of Biomedical Materials (JMBBM)

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), 2015
  • Dip. Ing., Mechanical Engineering, RWTH Aachen University, Germany, 2011,

    summa cum laude

  • Springorum Memorial Coin, RWTH Aachen, 2013

    MIT Schoettler Graduate Fellowship

    Scholar of the German National Academic Foundation (Studienstiftung Deutsches Volk)

    Best Paper Award, NEMB Conference Boston MA, 2013, ASME

LICENSES & CERTIFICATIONS

Licensed Professional Mechanical Engineer, California, #38945

LANGUAGES

  • German
  • Russian