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A 3D defect-driven analytical framework linking geometric evolution to failure limits in ring hydroforming
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DOI：10.1016/j.ijmachtools.2026.104412.png)
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Abstract
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• Proposed an analytical framework based on geometric evolution and failure mapping. • Geometric evolution models for multi-stage ring hydroforming were established. • Constructed a 3D parameter-defect space mapping loading paths and failure limits. • Revealed non-linear coupling effect and instability boundary transition mechanism.
Keywords:
geometric evolution
failure mapping
ring hydroforming
3D parameter-defect space
instability boundary
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