Effect of stiffness anisotropy on topology optimisation of additively manufactured structures

Effect of stiffness anisotropy on topology optimisation of additively manufactured structures

•Significant material anisotropy has a substantial effect on topology optimisation results.•Increasing anisotropy decreases the weight reduction via topology optimisation in a case study.•Case study shows deviation of building angle away from 0° or 90° decreases the weight reduction.•Topology optimi...

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Veröffentlicht in:Engineering structures 2018-09, Vol.171, p.842-848
Hauptverfasser: Chiu, Louis N.S., Rolfe, Bernard, Wu, Xinhua, Yan, Wenyi
Format: Artikel
Sprache:eng
Schlagworte:
Additive manufacturing
Anisotropy
Case studies
Laser beam melting
Manufacturing
Manufacturing industry
Material anisotropy
Optimization
Shear modulus
Stiffness
Topology
Topology optimisation
Topology optimization
Weight reduction
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Zusammenfassung:•Significant material anisotropy has a substantial effect on topology optimisation results.•Increasing anisotropy decreases the weight reduction via topology optimisation in a case study.•Case study shows deviation of building angle away from 0° or 90° decreases the weight reduction.•Topology optimisation performs best when out-of-plane shear modulus is near isotropic value.•Anisotropy can be neglected for the cases of building angle
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2018.05.083