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"Residual Stress – Origins, Measurement, Modeling and Design" - May 2021 

05-21-2021 07:58

Residual Stress – Origins, Measurement, Modeling and Design

Dr. Vasisht Venkatesh
Associate Director, Materials and Processes Modeling at Pratt & Whitney

Residual stresses can develop during various manufacturing processes such as casting, forging, machining and peening. The ability to predict and control the residual stress in components will enable better designs that factor in the combined effects of residual stress and operational loads. This presentation will review the types of residual stresses, along with measurement and predictive methods used in the industry today.  

Dr. Venkatesh is Associate Director, Materials and Processes Modeling at Pratt & Whitney. He leads and manages efforts in the development, implementation, and maturation of computational tools and methods. His duties include assessing the current state of materials and processes computational tools and methods, and developing a plan to broaden the utilization of such methods across the discipline. Dr. Venkatesh also led the Air Force funded Foundational Engineering Problem (FEP) on Residual Stress in Ni base Superalloy Turbine Disks that developed a framework for model-based definitions enabling communication between supplier and OEM, model integration, model maturity assessments, and a rigorous approach to uncertainty quantification in component processing and residual stress measurements.

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