Research on Mechanical Model of EPDM Insulation Charring Layer
The coupling effect of physics, chemistry and mechanics is through charring layer in the process of ablation of the insulation material. Description of the structure and mechanical properties of charring layer is the critical factor to numerical computation for foretelling the ablation of insulation...
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| Veröffentlicht in: | Applied Mechanics and Materials 2012-01, Vol.152-154, p.57-63 |
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| container_title | Applied Mechanics and Materials |
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| creator | Hu, Chun Bo Xu, Yi Hua Zeng, Zhuo Xiong Yang, Yu Xin |
| description | The coupling effect of physics, chemistry and mechanics is through charring layer in the process of ablation of the insulation material. Description of the structure and mechanical properties of charring layer is the critical factor to numerical computation for foretelling the ablation of insulation material. The characteristic of charring layer structure of EPDM insulation at sorts of ablating condition were analyzed, and based on characteristic of porous medium of charring layer, the mechanical model with porosity as parameter was modeled by using theory of solid porous medium. According to the intensity determination of charring layer, the coefficient of intensity model was determined, then, the failure criterion of charring layer was set up, which can provide the mechanical parameters of charring layer for numerical computation to foretell the ablation of insulation material. |
| doi_str_mv | 10.4028/www.scientific.net/AMM.152-154.57 |
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| title | Research on Mechanical Model of EPDM Insulation Charring Layer |
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