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首页> 外文会议>ASME international mechanical engineering congress and exposition >VERIFICATION OF A MANUAL MESH MOVING FINITE ELEMENT ANALYSIS PROCEDURE FOR MODELING ABLATION IN LAMINATED COMPOSITE MATERIALS
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VERIFICATION OF A MANUAL MESH MOVING FINITE ELEMENT ANALYSIS PROCEDURE FOR MODELING ABLATION IN LAMINATED COMPOSITE MATERIALS

机译：层状复合材料烧蚀模型化的人工网格运动有限元分析程序的验证

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One of the prevalent approaches to model ablation problems is to use the UMESHMOTION subroutine and the Arbitrary Lagrangian-Eulerian (ALE) adaptive remesh algorithm in ABAQUS (i.e., a commercial, general purpose Finite Element Analysis (FEA) software). However, the approach is not applicable for ablation problems when the material removal proceeds from one material domain to another, such as for ablations of laminated composite materials when the surface recedes from one laminate layer to another layer with different material orientations. In this paper, a novel procedure, based on manual mesh moving FEA with ABAQUS, is proposed to solve the ablation problems for laminated composite materials. The proposed procedure is verified by comparing the predictions of temperature and ablation histories of a two-dimensional isotropic panel (i.e., with single material domain) with those obtained using the traditional UMESHMOTION+ALE method. In addition, a case study is presented to demonstrate the successful application of the proposed procedure for the prediction of the thermal and ablation response of a laminated carbon fiber reinforced epoxy matrix (CFRP) composite panel subjected to a high-intensity and short-duration radiative heat flux.
机译：建模消融问题的一种流行方法是在ABAQUS中使用UMESHMOTION子例程和任意Lagrangian-Eulerian（ALE）自适应重算算法（即商用通用有限元分析（FEA）软件）。然而，该方法不适用于当材料去除从一个材料区域进行到另一材料区域时的烧蚀问题，例如当表面从一个层压板层退回到具有不同材料取向的另一层时的层压复合材料的烧蚀。本文提出了一种新的基于ABAQUS的手动网格移动FEA的程序，以解决复合材料层合的烧蚀问题。通过将二维各向同性面板（即具有单个材料域）的温度和烧蚀历史预测与使用传统UMESHMOTION + ALE方法获得的温度和烧蚀历史预测进行比较，可以验证所提出的程序。此外，还进行了案例研究，以证明所提出的程序成功地用于预测碳纤维增强环氧基复合材料（CFRP）层压板在高强度和短时辐射下的热响应和烧蚀响应热通量。

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