Arc ablation simulation test piece

The invention relates to an arc ablation simulation test piece. The test piece comprises a force bearing structure; the heat protection assembly is fixed to one side of the force bearing structure, a through groove is formed in the heat protection assembly, and the through groove penetrates through the two opposite sides of the heat protection assembly in the extending direction of the heat protection assembly; the pressing plate is fixed to the through groove, and one side of the pressing plate is attached to the force bearing structure. By arranging the force bearing structure, the heat protection assembly, the through groove formed in the heat protection assembly and the pressing plate fixed in the through groove, a gap at the butt joint position of cabin sections of a whole-course hypersonic aircraft can be jointly simulated, the test piece is used in an assessment test of a dynamic thermal arc wind tunnel, the assessment cost can be effectively reduced, and the test efficiency is improved. The problem th