Perforated Target Plate with Fragments Deformation Recovery Method after Static Detonation Test
A new parametric method was proposed for addressing deformations in target plates after static deto-nation experiments within the framework of a triangular mesh model.This method addressed the significant de-formations in the parametric representation of hole regions on the target plate,as well as the distortions in boundary angles,area,and stretching caused by the triangular mesh.The approach begins by fitting variational implicit surfaces to repair the holes,followed by the application of the Virtual Boundary-Based ABF++method for parameterization.Subsequently,it optimized the overall target plate point cloud based on the mesh energy of the target plate before the experiment,further reducing deformations.Finally,it removed additional repair points and virtual boundary points to obtain the parametrically represented target plate point cloud.In experi-ments,LSCM and ABF++methods were chosen to directly perform deformation recovery on two classic trian-gular mesh models,namely,the human face model and the target plate model with holes.These results were compared to our proposed method.The experimental results demonstrated that our method outperformed LSCM and ABF++by reducing average distortions in four key metrics:external boundary angle distortion,external boundary area distortion,internal boundary angle distortion,and internal boundary area distortion,by an aver-age of 31.10％,23.76％,19.60％,and 10.08％,respectively.Thus,our approach provided an effective para-metric method for reducing deformations on both internal and external boundaries of parametric surfaces,mak-ing it a valuable tool for perforated target plates.
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维普
