TY - CHAP

T1 - Eigenstrain method in simulations of laser peen forming of curved surfaces

AU - Poltl, Dominik

AU - Teja Sala, Siva

AU - Kashaev, Nikolai

AU - Klusemann, Benjamin

N1 - Conference code: 27

PY - 2024/5/15

Y1 - 2024/5/15

N2 - The eigenstrain ansatz allows for the efficient simulation of large-scale applications of Laser Peen Forming (LPF) while being subject to geometric constraints. A setup to investigate the viability of the method for non-uniform curvature is proposed. A small-scale laser processing is simulated on cylinder shells of given curvature. Eigenstrains are determined in representative cells and mapped onto a second cylinder shell with different curvature to simulate a large-scale processing operation. The eigenstrains result in changes in local curvature. This is repeated for four curvatures. The resulting data is used to investigate the dependence of the induced curvature change on the origin geometry of the eigenstrains. A determined regression relation provides insight into the feasibility of the eigenstrain ansatz beyond its constrains.

AB - The eigenstrain ansatz allows for the efficient simulation of large-scale applications of Laser Peen Forming (LPF) while being subject to geometric constraints. A setup to investigate the viability of the method for non-uniform curvature is proposed. A small-scale laser processing is simulated on cylinder shells of given curvature. Eigenstrains are determined in representative cells and mapped onto a second cylinder shell with different curvature to simulate a large-scale processing operation. The eigenstrains result in changes in local curvature. This is repeated for four curvatures. The resulting data is used to investigate the dependence of the induced curvature change on the origin geometry of the eigenstrains. A determined regression relation provides insight into the feasibility of the eigenstrain ansatz beyond its constrains.

KW - Bending

KW - Curvature

KW - Eigenstrain

KW - Finite Element Analysis

KW - Laser Peen Forming

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85195953076&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/dfaecf05-2daf-372b-81bf-5a6d9d4490a2/

U2 - 10.21741/9781644903131-259

DO - 10.21741/9781644903131-259

M3 - Article in conference proceedings

AN - SCOPUS:85195953076

T3 - Materials Research Proceedings

SP - 2355

EP - 2363

BT - Material Forming, ESAFORM 2024

A2 - Araujo, Anna Carla

A2 - Cantarel, Arthur

A2 - Chabert, France

A2 - Korycki, Adrian

A2 - Olivier, Philippe

A2 - Schmidt, Fabrice

PB - Association of American Publishers

CY - Millersville

T2 - 27th International ESAFORM Conference on Material Forming - ESAFORM 2024

Y2 - 24 April 2024 through 26 April 2024

ER -