About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
The Effect of Material Volume on Impact Energy Absorption for Protective Equipment Applications |
Author(s) |
Kendra Hartley, Prasad Tennakoon, John Nychka |
On-Site Speaker (Planned) |
Kendra Hartley |
Abstract Scope |
Hand injuries from impact are common in the workplace; therefore, gloves with bumpers on the back of the hand were created to prevent these injuries. Limitations created by impact performance standards as well as limitations from human factors, such as dexterity and the surface area of the back of the hand, create a challenge when designing these gloves. Elastomers are frequently used as they are able to meet both criteria; however, there is limited knowledge regarding size effects and absorbed energy of the bulk polymer material. This presentation will detail results of drop test experiments and Abaqus modelling that reveal a threshold of specimen size above which no significant gains were found in impact performance (transmitted force). Moreover, the volume of material required to meet the threshold was significantly smaller than hypothesized. In addition, some materials performed better at the smaller volumes than in the larger volumes. |
Proceedings Inclusion? |
Planned: |
Keywords |
Polymers, Mechanical Properties, Modeling and Simulation |