Predicting residual stress and distortion
Hill Engineering has developed and validated a computational design tool that predicts the residual stress and distortion caused by processes that provide compressive residual stress. This software, ERS-Toolbox®, is the product of more than a decade of meticulous study and collaboration with government and private industry. ERS-Toolbox® offers a fast and flexible approach to design an optimal process for the desired level of compressive residual stress benefit while managing potential detriments from tensile residual stress and process-induced distortion.
The flow chart above illustrates how ERS-Toolbox® complements OEM design and analysis information to provide estimates of performance benefits from a given residual stress treatment plan. This capability is a key for residual stress engineering of fatigue life extension processes, allowing virtual trials of treatment processes, process parameters, and processed area. These trials enable rapid and cost-effective design of residual stress treatments that meet customer goals.
Innovative
ERS-Toolbox® drives innovations in fatigue-life extension by enabling design of processes that provide compressive stress, including shot peening, laser peening, and hole cold expansion.
Efficient
ERS-Toolbox® allows you to perform your design and optimization in the virtual space, saving valuable time and money.
Enhancing
ERS-Toolbox® is based on our award-winning methodology to measure, store, and map process information (eigenstrain) from our proprietary database; and enables your organization to effectively utilize compressive residual stress to enhance the performance of your parts.
Features
- Evaluate different engineered residual stress processes including laser shock peening, shot peening, and cold expansion applied to the same part.
- Works on typical aluminum and titanium structural alloys and can be expanded to other materials as needed
- Supports the demands of probabilistic-based methods
- Compatible with leading finite element modeling tools Ansys and Abaqus