English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

The Collaborative Research Center SFB/TRR 136 “Process Signatures”, located in Bremen, Aachen, Germany, and Stillwater, Oklahoma, USA, since 2014, aims to describe manufacturing processes by generated surface material modifications. The approach assumes that a general description allows generating desired surface properties with different equivalent machining or treatment strategies. The surface modification due to machining processes can have positive or negative influences on the life time behavior of components. An example for occurring surface modifications are residual stresses, known for being generated in surface regions due to machining operations. They are significantly influencing the properties of dynamically stressed components. Compressive stresses in general are known mostly to enhance the endurance limit due to counteracting crack formation and propagation. Tensile residual stresses in most cases reduce fatigue strength as they have to be superimposed to the crack initiating tensile load stresses. The aim of a holistic approach to surface treatment should therefore be, to a compressive residual stress depth profile adjusted to the anticipated demands. However, residual stresses are not stable. Due to temperature exposure or mechanical loads they can change within the lifetime of a component. This literature review aims to give an overview on the state of knowledge so far achieved on the stability of residual stresses and the dependence of their stability on the mode of generation.

The Dependence of Thermal and Mechanical Stability of Residual Stresses on Their Mode of Generation