About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
Influence of Material Composition and Interface Geometry on Strain Redistribution in PolyJet Multimaterial Interfaces |
| Author(s) |
Mengqing Zhao, Amrita Basak |
| On-Site Speaker (Planned) |
Mengqing Zhao |
| Abstract Scope |
The mechanical response of multimaterial systems is governed by the coupled effects of constituent material properties and interface morphology, yet their combined influence on local deformation remains insufficiently understood. This study experimentally investigates how material composition and interface geometry influence strain redistribution across bonded PolyJet multimaterial interfaces. Three elastomeric digital materials (70A, 85A, and 95A Shore A) were combined to fabricate specimens with straight, interlocked, and T-shaped interfaces under identical loading conditions. Uniaxial tensile testing coupled with two-dimensional digital image correlation quantified full-field strain evolution and interfacial strain gradients. Results show that material-property mismatch strongly influences the effectiveness of interface geometry. Interlocked interfaces enhanced load transfer for material combinations with smaller stiffness mismatch, whereas geometries containing narrow neck features promoted localized deformation in systems with larger mismatch. These findings establish structure–composition–property relationships that provide insight into how interface morphology and constituent composition collectively govern deformation in multimaterial polymer systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Polymers |