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Abstract:
The
hardware and software systems of biaxial tensile test of cruciform
specimen are built in order to study the plastic deformation behavior of
sheet metal under complex loading paths. The key techniques, such as the
displacement synchronous control of the same axial jaws, the proportion
and non-proportion loading control for displacement and load, loading
stop control based on load variation, and so on , are realized. The
experiment shows that the test system has well accurate and reliable and
provides the experimental basis for further research.
Key words:
Sheet
metal forming Theory of plasticity Biaxial tensile test
Cruciform specimen Loading path control
CLC No: TG381 O348
国家自然科学基金和华中科技大学塑性成形模拟及模具技术国家重点实验室基金资助项目. Received 20000901,
received in revised form 20001126
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