Experimental method for directly measuring in-plane anisotropy coefficient of metal thin-walled pipe

• Main Authors: LIN YANLI, CHEN KELIN, HE ZHUBIN, SU YIBO
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides an experimental method for directly measuring an in-plane anisotropy coefficient of a metal thin-walled pipe, belongs to the field of plastic processing of metal pipes, and can solve the problem that the in-plane anisotropy coefficient of the thin-walled pipe in a non-main-axis direction cannot be directly measured through an experiment. Comprising the following steps: determining the shape and size of a perforated experimental sample according to the size of a to-be-measured thin-walled tube; the maximum length of the experimental sample along the circumferential direction of the thin-walled tube is not greater than half of the circumference of the circumferential section of the thin-walled tube to be measured; according to the shape and the size of the experimental sample, the experimental sample is cut out from the to-be-tested thin-walled tube; determining the shapes and sizes of a punch, a female die and a blank holder required by an experiment according to the shape and size of an