On the determination of residual stresses in additively manufactured lattice structures.

ABSTRACT: The determination of residual stresses becomes more complicated with increasing complexity of the structures investigated. Additive manufacturing techniques generally allow the production of 'lattice structures' without any additional manufacturing step. These lattice structures consist of thin struts and are thus susceptible to internal stress-induced distortion and even cracks. In most cases, internal stresses remain locked in the structures as residual stress. The determination of the residual stress in lattice structures through nondestructive neutron diffraction is described in this work. It is shown how two difficulties can be overcome: (a) the correct alignment of the lattice structures within the neutron beam and (b) the correct determination of the residual stress fi

SUBMITTER: Fritsch T 

PROVIDER: S-EPMC7941307 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature