About CVRSE PLLC

About us

Our Mission

To provide structural design solutions that meet our customers' needs with safety, creativity, and integrity. We will always put our customers and clients first.

Our Values

Structural safety is first and foremost in everything we do
Structural design is our passion
We operate with integrity and transparency
We are focused on our customers and we meet our commitments
We are hands on - not just a virtual design firm
Realizing your vision is why we are here

More About

About Patrick B. Stickler, PhD, PE

I have 30 years of experience as a professional engineer and structural designer with expertise in residential, commercial, and military aviation and aerospace applications. I founded a company performing residential structural design and have expertise in evaluating structures for remodel and remediation.

Education

Ph.D. Mechanical Engineering, August 2001, University of Washington. Dissertation “mechanical
behavior and failure mechanisms of composite T-Joint with transverse stitching”
M.S. Mechanical Engineering, August 1998, University of Washington
M.S. Manufacturing Systems Engineering, January 1990, Lehigh University
B.S. Industrial Engineering, June 1987, Pennsylvania State University

Expertise

- ·        Residential structural engineering design and permitting
  ·        Consultation for residential structural design issues and resolution
  ·        Deposition and testimony for liability resolution
  ·        Structural engineering for commercial aviation, military, and astronautic applications

Teaching

Adjunct Professor, Manufacturing Engineering Technology, Oregon Institute of Technology, August, 2004 – 2011, (1) ENGT407: Composite Materials & Processes I, (2) ENGT407: Applied Composites II, (3) ENGR213: Strength of Materials, MET315 Machine Design I
Affiliate Assistant Professor, Mechanical Engineering, University of Washington, January 2005 – 2011, (1) ME450: Introduction to Composite Materials and Design.
Affiliate Associate Professor, Aeronautics and Astronautics, University of Washington, November 2007-2015.

Patents:

3 issued, 14 disclosures pending Past and Present Technical

Society Committees:

American Society for Composites – Emerging Composite Technology Committee Chair 2004 – 2011, Co-chair 22nd American Society for Composites (ASC) Annual Technical Conference, Seattle, WA, Sept. 17-19, 2007
SAMPE, AIAA

College Advisor Boards:

Washington State University – Mechanical & Materials Engineering Department, 2007-2011
Oregon Institute of Technology – OIT/Boeing Advisory Board, 2006-2011

Journal Publications

F. Gasco, P. Feraboli, J. Braun, J. Smith, P. Stickler, L. DeOto, Wireless strain measurement for structural testing and health monitoring of carbon fiber composites, Composites Part A Applied Science and Manufacturing, Sep 2011.
P. Feraboli, T. Cleveland, P. Stickler, J. Halpin, Stochastic laminate analogy for simulating the variability in modulus of discontinuous composite materials, – Composites (Part A), 41/4, 2010, pp. 557-570.
Feraboli, P., Peitso, E., Deleo, F., Cleveland, T., Stickler, P. “Characterization of prepreg-based discontinuous carbon fiber/ epoxy systems”, – Journal of Reinforced Plastics and Composites, 28/10, 2009, pp. 1191-1214.
P. Feraboli, T. Cleveland, M. Ciccu, P. B. Stickler, and L. de Oto. Defect and damage analysis of advanced discontinuous carbon fiber/epoxy composite materials. Compos. Part A – Appl. Sci. Manuf., 41(7):888{901, 2010.
P. Feraboli, E. Peitso, T. Cleveland, P. Stickler, J. Halpin, “Notched behavior of prepreg-based discontinuous carbon fiber/ epoxy systems, – Composites (Part A), 40/3, 2009, pp. 289-299.
P. Feraboli, E. Peitso, T. Cleveland, P. Stickler, “Modulus measurement of prepreg-based discontinuous carbon fiber/ epoxy systems, – Journal of Composite Materials, 43/19, 2009, pp. 1947-1965.
Siva P. Pilli, Kevin L. Simmons, James D. Holbery, Patrick B. Stickler, “A Novel Accelerated Moisture Absorption Test and Characterization”, Composites Part A, Under Review, 2008.
Adriana W. Blom, Patrick B. Stickler and Zafer G¨urdal, “Optimization of a Composite Cylinder under Bending by Tailoring Stiffness Properties in Circumferential Direction”, Composites Part B, Under Review, 2008.
P.B. Stickler and M. Ramulu, “Damage Progression Analyses of Transverse Stitched Composite TJoints under Flexure and Tension Loading,” Advanced Composite Materials, Volume 15, Number 2, 2006, pp. 243-261(19).
P.B. Stickler and M. Ramulu, “Experimental Study of Composite T-Joints Under Tensile and Shear Loading,” Advanced Composite Materials, Volume 15, Number 2, 2006, pp. 193-210(18).
M. Ramulu, P.B. Stickler, N.S. McDevitt, I.P. Datar, D. Kim and M.G. Jenkins “Influence of Processing Methods on the Tensile and Flexure Properties of Advanced Polymer Matrix Composites,” Composite Science and Technology, 2003.
P.B. Stickler, M. Ramulu, S.L. Coguill, and M.E. Tuttle “Experimental Investigation of T300/PR520 Laminate Properties and Failure Analysis,” Journal of Advanced Materials, Vol. 36, No. 1, January 2003, pp. 3-11.
P.B. Stickler and M. Ramulu, “Parametric Analyses of Stitched Composite T-Joints by the Finite Element Method,” Materials & Design, Volume 23, Issue 8, December 2002, Pages 751-758.
P.B. Stickler, M. Ramulu, and B. Van West, “Transverse Stitched T-joints in Bending with PR520 Resin: Initial Results,” Journal of Reinforced Plastics and Composites, Vol. 20, No 1, 2001, pp. 65- 75.
P.B Stickler and M. Ramulu, “Investigation of Mechanical Behavior of Transverse Stitched T-joints with PR520 Resin in Flexure and Tension,” Composite Structures, Vol. 52, No. 3-4, 2001, pp. 307- 314.
P.B. Stickler, M. Ramulu, and P.S. Johnson, “Experimental and Numerical Analysis of Transverse Stitched T-Joints in Bending,” Composite Structures, Vol. 50 No. 1, 2000, pp.17-27.

Journal Issues edited

- - - Feraboli, P., Stickler, P., “Selected papers from the 22nd American Society for Composites (ASC) Annual Technical Conference, Seattle, WA, Sept. 17-19, 2007” – Special issue of the Journal of Composite Materials, 43/5, 2009.

Selected Keynote and Plenary Presentations

- - ACMA Conference on Structural Applications of Composites, UAB, February 8-9, 2006, keynote speaker.
  - ACMA Composites 2005 – Panel Speaker, Innovation Forum
  - Hayashi Memorial International Award – Best International Conference Paper: P.B. Stickler “787 Composites Airframe Structures Development,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
  - Keynote address and participate in panel discussion – SPIE 2003 National Science Foundation (NSF)
  - Forum on “Sensor Technologies and Smart Structures” –“Aerospace Structures: Future Trends From an Industry Perspective.” 2003.
  - Plenary Lecture – American Society for Composites 17th Technical Conference, 2002.

Conference Participation

Conference Technical co-chair: 22nd Annual Technical Conference of the American Society for Composites, University of Washington (2007).
Session chair: 37th International SAMPE Technical Conference: “Composite Aircraft Technology Workshop” (2005).
Session chair: SAE Aerospace Conference & Exhibition, Composites for 7E7 and A380, (2004).
Session chair: SAE Aerospace Conference & Exhibition, Composites in Commercial Aviation, (2003).
Session chair: 33rd International SAMPE Technical Conference, Design & Analysis Session I, II, & III, (2001).
Session chair: 44th International SAMPE Symposium and Exposition, Composite Design, (1999).

Conference Proceedings

Feraboli P., Peitso E., Cleveland, T., Stickler P, “Characterization of discontinuous carbon fiber epoxy systems for aerospace applications: part III”, – U.S.-Japan Composites Conference, Tokyo, JAPAN June 2008.
Adriana W. Blom, Joost List, Patrick B. Stickler and Zafer G¨urdal; “Design and Manufacture of a Composite Cylinder with Circumferentially Varying Stiffness”, American Society for Composites 23rd Annual Technical Conference, Sept. 9-11, 2008, Memphis, TN.
Siva P. Pilli, Kevin L. Simmons, James D. Holbery, Vaithiyalingam Shutthanandan, Patrick B. Stickler, “Accelerated Composite Moisture Infusion Test and Characterization”, 4th International Conference on Composites Testing and Model Identification, Dayton, Ohio, USA, Oct. 20 – 22, 2008.
A.W. Blom, J. List, P.B. Stickler, Z. G¨urdal, “Optimization of a Composite Cylinder under Bending by Tailoring Stiffness Properties in Circumferential Direction”, EngOpt 2008 – International Conference on Engineering Optimization, Rio de Janeiro, Brazil, 01 – 05 June 2008.
P. Feraboli, E. Peitso, T. Cleveland, P. Stickler, “Characterization of Discontinuous Carbon Fiber Epoxy Systems for Aerospace Applications: Part II”, AIAA 49th Structures, Dynamics and Materials Conference, Schaumburg, IL, AIAA 2008-1939.
P. Feraboli and P.B. Stickler, “Characterization of Prepreg-Based Discontinuous Carbon/Epoxy Systems for Aerospace Applications (invited paper)”, 10th Japan International SAMPE Symposium & Exhibition, Tokyo, Nov. 27-30th, 2007.
P. Feraboli, E. Peitso, M. Graves, P. Stickler, “Characterization of High Performance Short Carbon Fiber/ Epoxy Systems: Effect of Fiber Length”, 7th SPE Automotive Composites Conference, Troy, MI – Sep. 2007.
P.B. Stickler, D. McCarville, M. Richey, N. Mead, D. Tiefel, M. Graves, and S. Lee, “The OITBoeing Composite Certificate Program”, Proceedings of the 22nd ASC Annual Technical Conference, University of Washington, Seattle, WA, Sept. 2007.
P. Feraboli, E. Peitso, M. Graves, and P.B. Stickler, “Considerations on Discontinuous Carbon/Epoxy Systems for Aerospace Applications: Effects of Fiber Length”, Proceedings of the 22nd ASC Annual Technical Conference, University of Washington, Seattle, WA, 2007.
P.B. Stickler and M. Ramulu, “Study of Damage Progression in Stitched Composite T-Joints Under Flexure and Tensile Loading”, ICCES’05, INDIA, Dec 1-6, 2005.
L.C. Parfitt, M. Ramulu, and P.B. Stickler, “Influence of Manufacturing Process and Fiber Volume in Edge Finishing Characteristics and Fatigue of GFRP Composites,” Proceedings of the 37th International SAMPE Technical Conference, Seattle, WA, Oct 31- Nov 3, 2005.
P.B. Stickler “7E7 Composites Airframe Structures Development,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
P.B. Stickler and M. Ramulu, “Damage Progression Analyses of Transverse Stitched Composite TJoints under Flexure and Tension Loading,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
P.B. Stickler and M. Ramulu, “Experimental Study of Composite T-Joints Under Tensile and Shear Loading,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
M. Ramulu, K. Colligen and P.B. Stickler, “Abrasive Waterjet Edge Finishing Effects on the Compression Strength of a Graphite/Epoxy Composite,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
M. Ramulu, P.B. Stickler and D. Kim, “Influence of Manufacturing Process and Fiber Volume in Edge Finishing Characteristics of GFRP Composites,” 11th US-Japan Conference on Composite Materials, Yonezawa, Yamagata, Japan, September 9-11, 2004.
P.B. Stickler, “Composite Materials for Commercial Transport – Issues and Future Research Direction”, (Plenary Lecture), Proceedings of the American Society for Composites 17th Technical Conference, West Lafayette, IN, Oct. 21-24, (2002).
M. Ramulu, P.B. Stickler, and I.P. Datar “Influence of Processing Methods on the Tensile Properties of Advanced Polymer Matrix Composites,” Proceedings of the Americ an Society for Composites 17th Technical Conference, West Lafayette, IN, Oct. 21-24, (2002).
P.B. Stickler and M. Ramulu, “Damage Progression Analysis of Composite T-Joints with Transverse Stitching Under Flexure and Tensile Loading,” Proceedings of the SEM Annual Conference, Milwaukee, WI, June 10-12, (2002).
P.B. Stickler, M. Ramulu, and S.L. Coguill “Investigation of T-300/PR520 Out-of-Plane Laminate Properties for Resin Transfer Molding,” Proceedings of the 33rd International SAMPE Technical Conference, Seattle, WA, Nov 4-8, Volume 33, (2001).
F. MacDonald, P.B. Stickler, and K.C. Chuang “Beyond-Tg Characterization of Polymer Matrix Composite Materials for Moderate-Duration Missile Applications,” Proceedings of the 33rd International SAMPE Technical Conference, Seattle, WA, Nov 4-8, Volume 33, (2001).
H.A. Schaefer, P.B. Stickler, D.A. McCarville, and C. Hiel, “Manufacturing Evaluation of a Low Cost Flight Vehicle Fitting,” Proceedings of the 33rd International SAMPE Technical Conference, Seattle, WA, Nov 4-8, Volume 33, (2001).
P.B. Stickler and M. Ramulu, “Analysis of Stitched Composite T-joints under Rail Shear Loading,” Proceedings of the 16th Annual Technical Conference of the American Society for Composites, Blacksburg, VA, September 9-12, (2001).
P.B. Stickler, “Evaluation of Thermally Conditioned LID-Bonded and Al-Brazed Titanium Sandwich Structure for RLV Main Propellant Tanks,” Proceedings of the 31st International SAMPE Technical Conference, Chicago, IL, Volume 31, (1999), pp. 114-121.
P.B. Stickler, C. Hiel, and W.B. Goldsworthy, “An Evaluation of Pultruded T-800/Epoxy and T800/Vinyl Ester for Affordable Composite Structures,” Proceedings of the 44th International SAMPE Symposia and Exhibition, Long Beach, CA, Volume 44, (1999), pp. 156-166.
P.B. Stickler, P. Keller, “Design, Fabrication, and Test of a Liquid Hydrogen Titanium Honeycomb Cryogenic Test Tank for Use as a Reusable Launch Vehicle Main Propellant Tank,” Proceeding of the Space Technology Applications Intentional Forum, Albuquerque, NM, Part 2, (1998), pp. 1045- 1050.